Guidelines for Forest and Land Fire Prevention and
Control
INTRODUCTION
Forests and lands constitute highly valuable natural
resources that play an essential role in supporting national development.
Nevertheless, these resources are continuously exposed to various threats and
disturbances that hinder conservation and sustainable management efforts. One
of the most significant threats is forest and land fires.
Forest and land fires have severe adverse impacts on
vegetation, socio-economic conditions, and the environment. Their consequences
extend far beyond the destruction of forests and lands themselves, disrupting
ecological balance and impeding national development processes.
To date, forest and land fires are often regarded merely
as natural disasters, similar to earthquakes or hurricanes. In reality,
however, forest and land fires differ fundamentally from such natural phenomena
because they can, to a large extent, be prevented and controlled. Experience
has shown that when preventive measures are not implemented during the dry
season or in fire-prone areas, forest and land fires are almost inevitable.
Therefore, forest and land fire management should no
longer rely solely on emergency suppression during the dry season. Instead, it
must be implemented through a planned, comprehensive, integrated, and
sustainable approach. Fire management should encompass not only suppression
activities during fire emergencies but also continuous preventive measures that
are systematically planned and carried out throughout both the dry and rainy
seasons.
PART I
BASIC PRINCIPLES OF FOREST AND LAND FIRES
Forest and land fires occur when three essential elements
are present simultaneously: heat, fuel, and oxygen (air).
These three components are commonly illustrated as the fire triangle.
Accordingly, the fundamental principle of forest and land fire control is to
eliminate one or more of these essential elements.
The spread of fire depends primarily on the
characteristics of the available fuel and prevailing weather conditions. Heavy
fuels such as logs, stumps, and large branches can ignite when dry. Although
they burn relatively slowly, they generate extremely high temperatures and
sustain combustion for extended periods. Conversely, light fuels—including dry
grasses, ferns, pine needles, and forest litter—ignite easily and promote rapid
fire spread, potentially resulting in large-scale forest and land fires.
Among weather variables, wind, humidity, and
temperature are the most critical factors influencing forest and land fire
behavior.
Strong winds increase the oxygen supply to combustion,
thereby accelerating fire spread. During large wildfires, wind and fire
interact dynamically. As the fire intensifies, rising hot air creates pressure
differences that draw surrounding air masses toward the fire, generating
stronger local winds that further intensify fire behavior.
Fuel moisture content also plays a crucial role in
determining fire intensity and suppression effectiveness. Under normal
conditions, fire activity tends to decrease during the night because increased
atmospheric humidity is absorbed by combustible materials, reducing their
flammability. In contrast, the drier atmospheric conditions typically
experienced during daytime significantly increase fire intensity and rate of
spread.
Consequently, from a technical standpoint, forest and
land fires are generally easier to control at night than during the day.
Nevertheless, this does not imply that daytime fire suppression efforts should
be neglected. In practice, operational and logistical considerations often
require that the majority of firefighting activities be conducted during
daylight hours.
Air temperature likewise influences firefighting
operations. High ambient temperatures reduce the endurance, physical
performance, and working capacity of firefighters, making suppression
activities more physically demanding and increasing operational risks.
PART II
IMPACTS OF FOREST AND LAND FIRES
Forest and land fires cause extensive and
multidimensional damage, affecting ecosystems, human well-being, and economic
development. Their impacts can be broadly classified into biophysical, socio-economic,
and environmental consequences.
Biophysical Impacts
Forest and land fires inflict severe damage on vegetation
and forest ecosystems. The extent of the damage ranges from minor injuries,
such as scorch marks at the base of tree trunks, to the complete destruction of
trees and associated vegetation.
One of the most serious consequences is the loss of
genetic resources (germplasm) resulting from the destruction of plant
populations. Germplasm represents valuable hereditary material that is
essential for biodiversity conservation, ecosystem resilience, and future
breeding and restoration programs.
In addition, fire weakens the resistance of forest stands
to pests and diseases. Trees suffering from fire injuries may survive the
initial burning but often become vulnerable to fungal infections, wood decay,
and physiological decline, ultimately leading to mortality.
Forest fires also reduce stand density, destroy
understory vegetation that serves as forage for wildlife, and degrade wildlife
habitats. The destruction of an entire generation of forest stands represents
not only the loss of valuable natural resources but also the loss of the
considerable time, investment, and effort required to establish and maintain
those forests.
Forest and land fires significantly alter the physical
properties of soils. The combustion of forest litter and organic matter removes
the protective humus layer, leaving soils directly exposed to solar radiation
and surface runoff. Consequently, soils become increasingly susceptible to
erosion, while infiltration and groundwater recharge decline.
Repeated fires occurring within the same area gradually
consume the entire litter layer and destroy soil microorganisms that play
indispensable roles in nutrient cycling and soil fertility.
Another major consequence is the degradation of land
surfaces accompanied by accelerated soil erosion. Burned areas located on
slopes and in upper watersheds experience a substantial reduction in their
water storage capacity. Field observations indicate that repeated forest fires
contribute to land degradation, increased soil erosion, and flooding,
ultimately leading to the sedimentation of rivers, lakes, reservoirs, and
irrigation channels.
Socio-Economic Impacts
Biophysical degradation resulting from forest and land
fires substantially reduces the carrying capacity and productivity of forests
and lands. As ecosystem productivity declines, the economic benefits derived
from natural resources likewise diminish.
These impacts adversely affect the incomes of local
communities and reduce government revenues generated from forestry,
agriculture, manufacturing, trade, tourism, and other sectors that depend
directly or indirectly on natural resources and environmental services.
Communities living in and around forest areas often
experience the greatest economic losses because their livelihoods depend
heavily on forest products, agricultural production, and ecosystem services
that are disrupted by fire.
Furthermore, large-scale fires frequently require
substantial financial resources for emergency response, fire suppression,
post-fire rehabilitation, and ecosystem restoration, placing an additional
burden on both national and local governments.
Environmental Impacts
Beyond causing extensive material losses, forest and land
fires generate enormous quantities of smoke and atmospheric pollutants.
The forest and land fires that occurred in 1994
and 1997 attracted worldwide attention because specific meteorological
conditions trapped smoke beneath a layer of cooler air over Indonesia and
neighboring countries. This atmospheric inversion prevented smoke dispersion,
resulting in prolonged episodes of severe haze.
The resulting haze significantly reduced visibility,
thereby disrupting land, maritime, and air transportation. In addition,
prolonged smoke exposure adversely affected public health, reduced outdoor
activities, and impaired economic productivity across the affected regions.
Large-scale forest fires also contribute to environmental
degradation through the release of substantial amounts of greenhouse gases and
particulate matter into the atmosphere, thereby exacerbating air pollution and
influencing regional and global climate systems.
PART III
SOURCES OF FOREST AND LAND FIRE IGNITION
The incidence of forest and land fires in Indonesia has
increased significantly over recent decades. The majority of these fires are
caused by human activities, either through negligence or deliberate
actions. In addition, prolonged periods of extremely dry conditions associated
with large-scale climatic variability and global climate change have further
intensified the occurrence and severity of forest fires in several regions of
Indonesia.
Forest fires may originate from either accidental
or intentional ignition. Accidental fires are commonly caused by the
carelessness of smokers, tourists, hikers, forest workers, and non-timber
forest product collectors.
In many cases, however, forest fires result from the
intentional use of fire during activities such as industrial forest plantation
(HTI) development, plantation establishment, forest encroachment, land
preparation for shifting cultivation, livestock grazing management to stimulate
fresh grass growth, hunting activities aimed at driving wildlife, and honey
collection involving the use of smoke to expel bees from their hives.
The following agricultural and land-use activities
constitute the principal sources of forest and land fire ignition.
Agricultural Activities
A large proportion of forest and land fires originate
from the use of fire during agricultural land preparation in rural areas.
The practice of clearing forested land for food crop
cultivation has long been employed. Typically, after two or three years of
cultivation, soil fertility declines substantially, prompting farmers to
abandon the exhausted land and clear new forest areas for cultivation. This
cycle continues repeatedly and tends to intensify as population growth
increases the demand for agricultural land.
Fire is also commonly used in permanent agricultural
systems to remove post-harvest residues and during land preparation for
plantation development.
Because burning is generally conducted during the dry
season and is often inadequately supervised, fires can easily escape into
adjacent forests and surrounding lands, resulting in uncontrolled wildfires
with severe ecological and economic consequences.
Forest Plantation Establishment
During forest plantation establishment, particularly
under clear-cut silvicultural systems followed by artificial regeneration or
reforestation, fire is frequently employed to remove vegetation and prepare
planting sites.
Negligence during these operations may allow fires to
spread beyond the intended area into adjacent forests and lands, resulting in
destructive forest fires.
Logging Operations
Forest fires associated with logging activities are
generally caused by human negligence during the dry season.
For example, sparks emitted from chainsaw exhaust systems
may ignite dry combustible materials on the forest floor. Once smoldering
begins, flames can spread to surrounding fuels, eventually developing into
forest fires.
Coal Seam Fires
Coal seam fires represent a unique source of forest
fires, particularly in East Kalimantan.
Coal seams ignited during the severe fires of 1993
have continued to smolder underground for extended periods. During the rainy
season, these underground fires generally remain concealed beneath moist soils
and pose relatively little immediate risk.
However, during prolonged dry periods, declining soil
moisture causes the ground to dry, crack, and fracture. Simultaneously, the
continued combustion of underground coal seams may trigger land subsidence
around fire vents.
These soil fissures and collapses expose underground
fires to dry surface vegetation, which has often already died due to prolonged
heating. Once exposed, the fire spreads rapidly through forest fuels in
multiple directions across the forest floor.
Numerous underground coal fire hotspots continue to exist
in East Kalimantan and remain potential sources of future forest fires. Similar
conditions may also occur in other regions where shallow coal deposits are
present beneath the soil surface.
Natural Causes
Although relatively uncommon, natural phenomena can also
ignite forest and land fires.
The principal natural ignition source is lightning.
Since lightning-induced fires generally occur during the rainy season, their
impacts are usually limited.
However, when lightning strikes highly flammable tree
species—particularly pine trees—under conditions where resin-rich crowns
remain susceptible to ignition despite wet surroundings, severe crown fires
may develop rapidly and spread throughout pine forests.
Summary
Although natural factors occasionally contribute to fire
ignition, the overwhelming majority of forest and land fires in Indonesia are anthropogenic.
Consequently, effective fire prevention strategies should prioritize reducing
human-caused ignitions through sustainable land management, public awareness,
regulatory enforcement, and improved fire management practices.
PART IV
INTEGRATED FOREST FIRE MANAGEMENT
Forest fires are recurring events that may occur annually
and have the potential to cause severe environmental degradation. One of the
principal reasons for the limited success of fire control programs is the
fragmented and uncoordinated approach often adopted in addressing the problem.
Traditionally, the primary emphasis has been placed on fire
suppression, while other equally important aspects of fire management have
received considerably less attention. In reality, effective fire suppression
can only succeed when supported by comprehensive prevention programs and sound
fuel management practices.
Accordingly, the establishment of an integrated and
coordinated forest fire management system is essential. Such a system
should comprise the following interrelated components:
- Fire
prevention,
particularly through public education, awareness campaigns, and extension
programs aimed at reducing human-caused fires.
- Efficient
fire detection,
supported by an integrated detection system that includes observation
networks, effective ground and aerial patrols, satellite remote sensing,
Geographic Information Systems (GIS), reliable communication systems, and
other appropriate technologies.
- Rapid initial
attack,
enabling immediate response to newly detected fires before they develop
into large-scale incidents.
- Well-organized
extended suppression operations, ensuring that larger fires are
effectively contained and ultimately extinguished.
Each of these components plays a vital role in ensuring
the overall success of forest fire management. Neglecting any one of them may
compromise the effectiveness of the entire system.
Consequently, forest fire management should be viewed as
a continuous and integrated process rather than as an isolated emergency
response during wildfire events.
Forest Fire Management Planning
A comprehensive forest fire management plan should be
prepared for every forest management unit or protected area.
Such a plan should clearly define:
- management
objectives and targets;
- areas with
high fire risk based on historical fire occurrence and fire hazard
assessments;
- available
human, financial, and technical resources; and
- fire
prevention, preparedness, suppression, and post-fire rehabilitation
activities.
Management plans should be reviewed and updated regularly
to accommodate changes in land use, climatic conditions, available resources,
and advances in fire management technologies.
Long-term planning is essential to improve institutional
preparedness and enhance the effectiveness of fire management strategies.
FOREST AND LAND FIRE CONTROL
Forest and Land Fire Prevention
The principle that "prevention is better than
cure" applies equally to forest and land fires.
Effective prevention programs can substantially reduce
the occurrence of fires, minimize suppression costs, and prevent extensive
environmental damage.
Fire prevention encompasses measures aimed at reducing
both fire hazards and fire risks. These objectives can be
achieved through:
- public
education and awareness;
- appropriate
silvicultural practices;
- fuel
management and modification; and
- effective
enforcement of laws and regulations.
Public Education and Extension
Because the majority of forest fires in Indonesia are
caused by human activities—whether through negligence or deliberate
actions—public participation and cooperation are indispensable for the success
of forest protection programs.
Continuous public education and awareness campaigns are
therefore essential to foster greater understanding of forest conservation and
encourage communities to participate actively in preventing forest and land
fires.
The following considerations should be taken into account
when designing public education programs.
Lack of Awareness
Many people remain unaware of fire prevention measures or
possess incorrect information regarding safe fire use. Consequently, they often
underestimate the risks associated with forest fires.
Examples include individuals who build campfires near dry
tree stumps or fallen logs without recognizing the potential danger.
Carelessness
Some individuals understand fire risks but fail to
exercise sufficient caution.
Typical examples include:
- smokers who
discard lit cigarette butts or matches carelessly;
- campers who
leave campfires unattended before they are completely extinguished; and
- logging
personnel whose negligence inadvertently ignites combustible forest
materials.
Deliberate Fire Setting
A smaller group intentionally causes fires for
anti-social purposes, including acts of vandalism or other irresponsible
activities motivated by personal interests.
Although relatively few in number, these individuals can
seriously undermine fire prevention efforts.
The first two groups—those lacking awareness and those
acting carelessly—should be the primary targets of educational programs.
People who lack information should receive education
regarding fire hazards and proper fire prevention practices. Those who act
carelessly should be reached through public information campaigns, audiovisual
media, and, where necessary, legal enforcement.
Strengthening cooperation with these two groups will also
facilitate more effective law enforcement against individuals who intentionally
set fires.
Educational Programs Should Include
An effective fire prevention education program should
incorporate:
- collaboration
with respected community leaders and local organizations;
- dissemination
of information through local newspapers, television, and radio;
- audiovisual
educational materials;
- circular
letters, brochures, and leaflets; and
- the
publication of practical pocket handbooks that are easy to carry and use
in the field.
Mass media—including newspapers, television, and
radio—represent powerful tools for reaching large audiences.
During the dry season, articles, editorials, interviews,
and public service announcements concerning forest fire prevention should be
broadcast regularly. These communications should clearly explain the economic,
ecological, and social benefits of preventing forest fires.
Major wildfire events, their impacts on communities, and
legal actions taken against individuals responsible for causing fires should
also be reported accurately and transparently. Such reporting serves not only
to educate the public but also to reinforce awareness and encourage community
cooperation in forest protection efforts.
Innovative Public Outreach
Fire prevention campaigns should employ creative and
engaging approaches rather than relying solely on conventional lectures.
Examples include:
- community
dialogue sessions;
- educational
field trips;
- audiovisual
presentations;
- interactive
demonstrations; and
- school-based
educational activities conducted by forestry officials using visual
teaching aids and educational entertainment.
These methods have proven effective in improving public
understanding and encouraging behavioral change.
Organized Public Awareness Campaigns
Public awareness activities should be implemented through
well-organized and continuous programs rather than sporadic lectures or the
isolated placement of posters.
An effective campaign should integrate:
- environmental
education;
- community
engagement;
- installation
of fire prevention signs and warning boards; and
- promotion of
the National Forest Fire Prevention Mascot ("Si Pongi").
Forest fire prevention is a year-round responsibility.
Public awareness initiatives should continue throughout the year, ensuring that
no opportunity is missed to strengthen public understanding of wildfire
prevention.
Ultimately, the objective is to cultivate a strong public
culture that recognizes forest fire prevention as a shared social
responsibility.
Community Participation
The active participation of local communities and
non-governmental organizations (NGOs) is essential for both fire prevention and
suppression.
Community-based fire management programs should therefore
be established through:
- demonstrations
of fire prevention techniques;
- training in
early fire detection;
- communication
and reporting systems;
- practical
firefighting exercises; and
- the
establishment of village fire brigades with clearly defined organizational
structures and responsibilities.
Such community involvement significantly enhances local
preparedness and improves the effectiveness of wildfire response.
Incentives and Recognition
In addition to legal sanctions for violations,
governments should consider implementing reward and incentive programs.
Communities that successfully protect forest areas from
fire over specified periods should receive appropriate recognition or
incentives in appreciation of their contributions to forest conservation.
PART V
SILVICULTURAL PRACTICES, FUEL MANAGEMENT, FIREBREAKS,
COMMUNITY FORESTRY, LAW ENFORCEMENT, AND EARLY FIRE DETECTION
Silvicultural Practices
Appropriate silvicultural practices play a crucial role
in reducing the risk of forest and land fires. In mixed forests or uneven-aged
stands, surface fires can readily spread from understory vegetation and shrubs
into the forest canopy, resulting in destructive crown fires.
Similarly, standing dead trees leaning against living
trees often provide vertical fuel continuity that facilitates the transition of
surface fires into canopy fires.
Therefore, sound silvicultural management should include
regular maintenance activities such as:
- periodic
vegetation cleaning;
- removal of
dead, dying, or diseased trees;
- elimination
of hazardous understory vegetation; and
- interruption
of vertical fuel continuity within forest stands.
Logging operations should also be carefully planned to
minimize the creation of large canopy openings that encourage the establishment
of highly flammable vegetation species and consequently increase wildfire
hazards.
Fuel Management
The removal or reduction of combustible materials is one
of the most effective measures for minimizing wildfire risks.
Excessive accumulation of forest litter should be
prevented or reduced in order to interrupt fuel continuity across the forest
floor.
Logging residues should likewise be minimized. Whenever
feasible, these residues should be utilized productively by local communities
or processed into economically valuable products such as:
- wood chips;
- compost;
- biomass fuel;
or
- other
forest-based products.
Such practices not only reduce fire hazards but also
enhance resource utilization and support sustainable forest management.
Prescribed Burning and Controlled Burning
The terms prescribed burning, controlled
burning, and related concepts refer to the intentional application of fire
under carefully planned conditions for the purpose of reducing hazardous fuel
loads.
Generally, prescribed burning encompasses:
- slash burning, conducted
during land preparation; and
- controlled
burning
within forest stands to reduce accumulated fuels while minimizing
ecological damage and preventing future catastrophic fires.
These operations should only be carried out under
carefully controlled weather conditions by trained personnel using established
operational procedures.
Properly implemented prescribed burning contributes
significantly to long-term wildfire risk reduction.
Species Selection and Reforestation
Reforestation and afforestation programs have long been
recognized as national priorities.
The selection of tree species and the design of
plantation systems should consider not only productivity but also wildfire
resistance.
Many reforested areas have experienced repeated fire
damage due to insufficient attention to fire prevention during planning and
establishment.
Consequently, fire-prone areas should be managed through
appropriate species selection and fuel modification strategies.
Highly flammable vegetation species should be clearly
identified, and where their use is unavoidable, silvicultural systems should be
specifically designed to reduce their susceptibility to wildfire.
Whenever possible, fire-resistant tree species should be
preferred.
Green Belts and Firebreaks
Green Belts
Green belts consist of strips of vegetation composed of
fire-resistant plant species that retain their foliage during the dry season.
These vegetated barriers function as living firebreaks,
separating plantation compartments, adjacent land uses, and other management
units.
By interrupting fuel continuity, green belts help prevent
fires from spreading between forest stands.
Firebreaks
Firebreaks—also referred to as fuel breaks—are
constructed by removing vegetation and combustible materials from designated
strips of land.
Existing roads, access tracks, and patrol routes may also
function as firebreaks.
Properly maintained firebreaks significantly facilitate
fire suppression operations, particularly during backfiring operations.
Improvement of Grazing Systems
Livestock grazing activities are occasionally associated
with intentional burning intended to stimulate new grass growth.
To reduce fire risks, several preventive measures should
be implemented, including:
- improving
livestock production systems through higher-quality forage;
- developing
diversified fodder resources;
- rehabilitating
Imperata cylindrica (alang-alang) grasslands; and
- promoting
sustainable grazing management practices.
These measures reduce dependence on fire as a vegetation
management tool.
Conservation Farming, Community Forestry, and Private
Forests
Recognizing the adverse consequences of excessive
exploitation of natural forests, Indonesia has implemented programs promoting
plantation forestry, watershed rehabilitation, and restoration of degraded
lands.
Government policies supporting Conservation Farming,
Community Forestry, and Private Forest Development encourage
rural communities to establish multipurpose tree plantations both inside and
outside designated forest areas.
These programs aim to:
- increase
public participation in sustainable forestry;
- improve rural
livelihoods;
- conserve
forest resources; and
- enhance
environmental sustainability.
Because local communities are directly involved in forest
management, these initiatives also strengthen public awareness and encourage
active participation in forest and land fire prevention.
Law Enforcement
Legislation constitutes one of the most important
instruments for preventing forest and land fires.
Strict enforcement of regulations governing the use of
fire is particularly essential for individuals and organizations that
repeatedly violate legal requirements.
The public should be adequately informed about applicable
laws and regulations governing fire use.
Although only a relatively small number of individuals
intentionally violate these regulations for personal gain or convenience, their
actions can seriously undermine fire prevention efforts.
Consequently, effective law enforcement remains
indispensable for ensuring the success of wildfire prevention programs.
Legal sanctions should not be viewed solely as punitive
measures.
Rather, they also serve important educational purposes.
When laws are consistently enforced and penalties are
publicly announced, they create a deterrent effect that substantially reduces
the likelihood of future fire incidents.
Accordingly, legal enforcement should be implemented
wisely, fairly, consistently, and transparently as an integral component of
wildfire prevention.
Forest and Land Fire Suppression
Early Fire Detection
Effective wildfire suppression depends fundamentally upon
early detection and rapid reporting.
If fires are not detected promptly, they may grow beyond
the capacity of initial response teams, resulting in substantially greater
environmental and economic losses.
Fire suppression cannot begin until a fire has been
detected.
The period between fire ignition and the arrival of
firefighting personnel generally includes several sequential stages:
- fire
detection;
- reporting;
- preparation;
- deployment;
- suppression;
and
- mobilization
of additional resources.
For this reason, efficient fire detection systems are
indispensable for minimizing response time and reducing wildfire damage.
Continuous surveillance of every forested area is neither
practical nor economically feasible, even during the dry season.
Therefore, monitoring priorities should be established
based on factors such as:
- conservation
value of forest resources;
- historical
fire occurrence;
- fire hazard
characteristics;
- expected
ecological impacts;
- availability
of transportation and communication infrastructure;
- financial
resources;
- firefighting
capacity; and
- availability
of firefighting equipment.
These considerations enable managers to identify priority
areas requiring continuous surveillance.
Methods of Fire Detection
An effective wildfire detection system should integrate
multiple complementary approaches, including:
- voluntary
reporting by local communities;
- routine
ground patrols;
- lookout
towers (fire towers);
- aerial
surveillance; and
- satellite-based
remote sensing.
The combination of these methods provides the highest
probability of detecting fires during their early stages.
Voluntary Community Reporting
In fire-prone forest regions inhabited by local
communities, residents should be encouraged to report every fire occurrence
immediately.
Community-based reporting systems can become highly
effective components of an integrated fire detection strategy, provided that
local people are well informed, properly motivated, and actively engaged in
wildfire prevention efforts.
Public education therefore remains essential for
strengthening community participation in early fire detection.
PART VI
GROUND PATROLS, FIRE TOWERS, SATELLITE DETECTION (NOAA),
COMMUNICATION SYSTEMS, FIRE SUPPRESSION PRINCIPLES, FIRELINE CONSTRUCTION,
WATER USE, BACKFIRING, MOP-UP OPERATIONS, FIREFIGHTING EQUIPMENT, AND
FIREFIGHTER SAFETY
Ground Patrols
Ground patrols are among the simplest methods of wildfire
detection; however, when conducted systematically, they constitute one of the
most effective means of identifying fires during their early stages.
Routine patrols should be concentrated in forest areas
with high conservation value and elevated wildfire risk. Patrol personnel may
operate on foot, by bicycle, motorcycle, motor vehicle, or boat, depending on
terrain conditions. In certain situations, natural vantage points, such as
elevated terrain or tall trees, may also be utilized to improve visibility.
Patrol personnel should possess comprehensive knowledge
of their assigned areas, including:
- topography;
- vegetation
characteristics;
- access
routes;
- water
sources; and
- local
community activities that may influence wildfire occurrence.
In addition to fire detection, ground patrol personnel
contribute significantly to fire prevention, public education, law enforcement,
and initial fire suppression.
Nevertheless, the effectiveness of ground patrols is
limited by the relatively small area that can be monitored continuously.
Consequently, fires may remain undetected for extended periods.
Moreover, long-term ground patrol operations are often
more costly than fixed observation facilities. Therefore, where appropriate,
fire lookout towers should be considered as complementary or alternative
monitoring systems.
When seasonal fire personnel are employed, they should,
whenever possible, be assigned to other forest protection or management
activities outside the fire season to improve operational efficiency and
cost-effectiveness.
Forest fires may also be detected incidentally by
personnel from other governmental agencies performing routine field duties.
Fire Lookout Towers
Fire lookout towers are generally regarded as one of the
most effective systems for early wildfire detection and can substantially
reduce the need for continuous ground patrols.
Their presence also serves as a visible reminder that
forest areas are under active surveillance, thereby discouraging illegal
activities involving fire.
During suppression operations, lookout towers may
additionally function as temporary operational headquarters, equipment storage
facilities, and resting stations for firefighting crews.
Fire lookout systems operate by assigning trained
observers to strategic locations throughout the fire season. Where justified,
permanent lookout towers may be constructed.
Selection of tower locations should be based on
scientific analysis considering visibility, terrain characteristics, historical
fire occurrence, and communication requirements.
To function effectively, each lookout tower should be
equipped with essential facilities, including:
- binoculars;
- topographic
maps;
- a fire finder
or fire locator;
- wind
direction and wind speed instruments; and
- a compass.
The height of each tower should be determined according
to local topography and the height of surrounding forest vegetation to maximize
visibility.
Satellite Detection (NOAA)
Satellite remote sensing provides an effective means of
detecting forest fires over extensive areas.
In September 1993, a receiving station for satellites
operated by the National Oceanic and Atmospheric Administration (NOAA)
was established at the Provincial Forestry Office in Palangka Raya, Central
Kalimantan.
The satellite system provides information on hotspots
detected at regular intervals.
When integrated with additional data sources, NOAA
hotspot information supports the development of comprehensive forest fire
information systems utilizing Geographic Information Systems (GIS) for
fire monitoring, planning, and management.
Communication Systems
Even the most effective fire detection systems become
ineffective if reliable communication facilities are unavailable.
Information regarding newly detected fires must be
transmitted immediately to the responsible authorities so that suppression
operations can begin while fires remain small and manageable.
Efficient communication is equally essential throughout
suppression operations for coordinating personnel, equipment, logistics, and
emergency response.
Communication methods may include:
- sirens;
- traditional
warning devices such as wooden drums or bells;
- whistles;
- messengers
traveling on foot, bicycles, or motor vehicles;
- telephone
systems; and
- radio
communication.
Although telephones provide highly effective
communication where infrastructure exists, their availability in remote forest
areas is often limited.
Portable radio communication remains one of the most
reliable systems for highly mobile firefighting operations and is particularly
valuable for coordination among ground patrols, lookout towers, and suppression
teams.
Principles of Fire Suppression
The fundamental principle of forest and land fire
suppression is rapid detection followed by immediate suppression while the
fire remains small.
Most wildfires are successfully extinguished by the first
response crews arriving at the incident.
Larger fires require additional personnel, equipment, and
operational resources.
The primary principles of wildfire suppression are:
- Reach every
fire as rapidly as possible while ensuring personnel safety.
- Attack the
fire aggressively with sufficient resources to reduce fire intensity.
- Continue
suppression efforts until the fire is completely extinguished.
- Construct
firelines faster than the advancing fire front.
- Understand
fuel classifications to predict fire spread and suppression requirements.
- Develop
suppression plans based on worst-case fire scenarios.
- Continuously
adjust operational strategies as fire behavior and environmental
conditions change.
Because wildfire behavior evolves continuously,
suppression planning must likewise remain dynamic throughout the incident.
Fire Suppression Operations
Wildfire suppression may be conducted using either direct
attack or indirect attack strategies.
Direct Attack
In direct attack, suppression efforts are applied
directly to the active flame front.
Depending on fire conditions, firefighters may:
- beat flames
using fire beaters;
- throw soil,
sand, or mud onto flames; or
- attack the
fire beginning at the rear (heel), progressing along both flanks, and
finally suppressing the head fire.
Direct frontal attack is generally appropriate only for
relatively small fires.
When fires become excessively intense, suppression should
begin from the rear and flanks in order to reduce heat exposure before
approaching the fire head.
On sloping terrain, uphill-moving fires should be
attacked from the burned area behind the fire, progressing along both flanks
until the ridge crest is reached. Direct attack on the head fire should only be
attempted after the fire reaches the ridge and conditions permit safe
operations.
The fire must be contained before it descends the
opposite slope, where rapid downhill spread may occur.
Indirect Attack
Indirect attack involves constructing firelines at
strategic locations determined by terrain features and existing natural or
artificial barriers such as roads.
This approach becomes necessary when fires spread too
rapidly or involve heavy fuels that make direct suppression unsafe or
ineffective.
Fireline Construction
Firelines are typically constructed using:
- shovels;
- hoes;
- rakes;
- machetes;
- hand saws;
and
- chainsaws.
Slow-burning materials should be removed from the
fireline to reduce future hazards, whereas highly combustible materials should
be relocated into areas certain to burn.
Shrubs should be cleared using cutting tools.
The remaining forest floor litter should then be removed
using rakes or hoes until mineral soil is exposed.
Vegetation located between the fireline and the active
fire should subsequently be burned under controlled conditions to eliminate
remaining fuels.
On steep terrain, trenches may be excavated along
firelines to intercept rolling burning materials.
The required depth and width of trenches depend upon
slope steepness and the size of combustible materials present.
Use of Water
Water is the most effective medium for wildfire
suppression.
Where adequate water supplies exist and are properly
applied, water provides the fastest means of controlling fire.
However, in many situations available water supplies are
insufficient to extinguish fires completely and are therefore used primarily
for cooling and slowing fire spread.
Water may be supplied by:
- tanker
trucks;
- portable
backpack pumps;
- portable
water tanks; and
- other mobile
water storage systems.
Grass, shrub, and litter fires occurring on relatively
flat terrain can often be suppressed efficiently using slowly moving water
tankers operating parallel to the fire edge.
Where vehicle access is impossible, portable backpack
pumps provide an effective alternative.
Water should always be applied efficiently to avoid
unnecessary wastage, particularly in areas where water resources are limited.
Use of Soil, Sand, and Mud
Soil, sand, and mud are effective suppression agents for
burning stumps, dead trees, and heavy fuels.
These materials suppress flames while simultaneously
cooling burning surfaces.
The material should be thrown directly onto the base of
the flames in rapid, continuous motions along the fire edge.
Nevertheless, fuels covered with soil should never be
assumed fully extinguished because hidden embers may reignite after exposure to
air.
Once fire spread has been contained, all buried hotspots
should be completely extinguished.
Use of Branches (Fire Beaters)
Surface fires burning through litter or low shrubs may
also be controlled using leafy branches or wet burlap sacks.
These tools are primarily used for cooling fire edges
during fireline construction.
Fire beaters should be swung directly onto the flames so
that sparks and burning embers are driven back into already burned areas.
Backfiring
Backfiring is a highly specialized suppression technique
involving considerable risk.
Accordingly, it should only be undertaken by experienced
and thoroughly trained firefighting personnel.
Backfiring may be appropriate when:
- the fire
spreads too rapidly for direct attack;
- close-range
suppression is unsafe;
- terrain
prevents effective deployment of suppression crews; or
- available
personnel are insufficient for direct suppression.
Before ignition, the fireline must be fully secured.
Existing roads, rivers, or other firebreaks should be
incorporated whenever possible.
Firelines should be constructed as straight as
practicable while accounting for:
- wind
direction;
- slope; and
- fuel
conditions.
Successful backfiring occurs when the intentionally
ignited fire meets the advancing wildfire within the designated burn area.
Backfiring should begin at the highest point along the
prepared fireline and proceed gradually toward the already burned area.
Extreme caution is required on slopes exceeding 20
percent, where burning debris may roll downhill and create new ignitions.
Mop-Up Operations
Every wildfire remains potentially dangerous until all
residual heat sources have been completely extinguished.
Mop-up operations begin after the fire has been brought
under control and consist of extinguishing or removing all smoldering materials
located along or near the fireline.
General mop-up procedures include:
- extinguishing
all smoldering materials along the fire perimeter;
- removing or
securing rolling fuels that may cross the fireline;
- eliminating
hazardous fuels such as dead trees, decayed logs, stumps, and large
branches located near the fireline;
- completely
extinguishing all remaining hotspots following small fires; and
- ensuring that
residual burning materials in large fires cannot rekindle or spread beyond
containment lines.
Where water is available, it should be used to cool
remaining hotspots or mixed with soil to produce mud for complete
extinguishment.
Continuous patrol and surveillance remain essential after
suppression operations have concluded.
Firefighters should continue monitoring both burned and
adjacent unburned areas until there is absolute certainty that no remaining
embers are capable of reignition.
The duration of patrol activities depends upon fuel type.
Fast-burning fuels may require only a few days of
monitoring, whereas heavy fuels can remain capable of reignition for several
weeks.
Firefighting Equipment
Wildfire suppression utilizes a wide variety of
equipment, including:
Hand Tools
- single-bit
axes;
- double-bit
axes;
- shovels;
- hoes;
- bush hooks;
- hand saws;
- fire beaters;
and
- backpack
water pumps.
Mechanical Equipment
- chainsaws;
- tractors; and
- bulldozers.
Portable water pumps and associated water delivery
equipment are also essential components of wildfire suppression operations.
Each firefighter should carry at least one appropriate
tool during suppression activities.
Firefighter Safety
Wildland firefighting is inherently hazardous.
Every reasonable precaution should therefore be taken to
minimize the risk of injury.
The following safety principles should always be
observed:
- Firefighters
must be physically and mentally fit.
- Every crew
should carry adequate first-aid equipment.
- Frontline
firefighters should wear flame-resistant clothing, protective helmets,
safety boots, and respiratory masks.
- Safe drinking
water must always be available, and each firefighter should carry an
individual water supply while using it responsibly.
- Escape routes
and safety zones should be identified before suppression operations begin.
- Firefighters
must remain alert to rapidly changing fire behavior, falling burning
materials, and rolling debris.
- Equipment
should never be abandoned near active fires and must be protected from
damage whenever possible.
- Fuel
(gasoline and diesel) should always be stored separately from water
supplies.
- Storage
containers should be clearly color-coded as follows:
- Gasoline: Dark Red
- Drinking
Water:
Green
- Diesel Fuel: Orange
- Other Water
Supplies:
Yellow
These safety measures are fundamental to protecting
personnel while ensuring efficient and effective wildfire suppression
operations.
PART VII
SPECIAL FIRE SITUATIONS AND THEIR MANAGEMENT
Certain types of forest and land fires present unique
operational challenges because of their fuel characteristics, topography, or
fire behavior. These situations require specialized suppression strategies and
careful attention to firefighter safety.
Fire in Logs
When a log catches fire, the first priority is to cool
the hottest burning section, particularly the cavity or opening where
combustion is most intense.
Cooling may be accomplished by applying soil or mud
using a shovel.
Subsequently, the soil surrounding the burning log should
be excavated to prevent fire from spreading into adjacent forest litter. A
fireline should then be established at a safe distance from the burning log to
provide sufficient working space for firefighters.
When fires occur on steep slopes, trenches should be
constructed downslope to intercept burning embers or rolling debris.
Whenever feasible, burning logs should be rolled or moved
downslope to reduce the likelihood of uncontrolled movement and further fire
spread. If movement is impossible, the log should be stabilized using rocks or
guided into a previously prepared trench. Where the log is too heavy to move, a
trench should instead be excavated beneath it.
After the fire has been substantially cooled, the log
should be cut or split in sections that are not actively burning to expose
hidden embers.
This operation must be carried out carefully to prevent
sparks from igniting surrounding fuels.
Where sufficient water is available, it should be applied
directly to smoldering charcoal and exposed burning surfaces.
If water supplies are limited, soil or mud should be used
throughout suppression operations.
Where multiple burning logs occur within the same area,
surrounding branches, wood fragments, and other combustible debris should be
removed.
During mop-up operations, every burned log must be
carefully inspected for smoke and residual heat. Firefighters should verify
that no hidden embers remain before leaving the site.
Fire in Dead Trees
Standing dead trees undergoing decomposition are highly
susceptible to ignition.
Once ignited, they present serious hazards because
falling burning branches and airborne embers may ignite vegetation over
considerable distances.
Whenever possible, burning dead trees should be felled
safely.
If felling is not feasible, vegetation beneath the tree
should be cleared to reduce the risk of secondary ignitions.
After the tree collapses or breaks, suppression
operations should proceed using the same techniques described for burning logs.
Every burning fragment must be completely extinguished.
Firefighters should also conduct a careful search for
spot fires caused by airborne embers originating from the burning tree.
Where combustion is confined to the lower trunk near
ground level, extinguishment using water or soil may be sufficient without
cutting the tree.
Before felling a dead tree, smaller surrounding trees and
obstructing vegetation should be removed.
Similarly, lower branches of nearby larger trees should
be cleared whenever necessary.
The primary objective is to prevent the development of crown
fires, which are considerably more difficult and dangerous to suppress.
Fire in Tree Stumps
Large burning stumps can become persistent sources of
underground smoldering combustion.
When fire spreads from a stump into surrounding surface
fuels, a fireline should immediately be established to prevent further fire
spread.
The stump should then be cooled by covering it with soil
using a shovel, followed by complete extinguishment of all remaining
combustion.
Because stump fires frequently continue burning beneath
the surface, careful inspection is essential to ensure complete extinguishment.
Grass Fires and Mixed Fuel Fires
Grass represents one of the most dynamic wildfire fuels
because its flammability changes rapidly with weather conditions.
Dry grasses ignite extremely easily and spread fire at
very high rates, particularly where dense grass cover exists.
Consequently, grass fires can rapidly burn extensive
areas if not controlled immediately.
Wind and steep slopes significantly accelerate fire
spread.
Fortunately, grass fires generally produce relatively low
heat and cool rapidly after flame passage.
Grass fires may be effectively controlled by applying
soil or sand using shovels.
Firelines can often be constructed directly along the
fire edge.
Any remaining unburned vegetation located between the
fireline and the advancing fire should be removed or burned under controlled
conditions to eliminate continuous fuel.
Shrublands and dense brush typically occupy abandoned
agricultural fields or previously burned areas.
Although their fire behavior resembles grass fires, shrub
fires generally produce longer flames and heavier smoke.
Suppression may usually be conducted through direct
attack using:
- fire beaters;
- shovels;
- cutting
tools; and
- hand tools.
When shrub fires advance uphill, suppression should begin
at the rear (heel) of the fire and proceed along both flanks toward the ridge
crest.
Direct attack on the head fire should only occur after
the fire reaches the ridgeline and before it descends the opposite slope.
Shrubs and brush generally burn rapidly, allowing mop-up
operations to begin relatively quickly.
However, heavy fuels—including decayed wood, stumps,
logs, and other large woody debris—require special attention because they
continue smoldering long after flame passage.
Accurate assessment of fire conditions is therefore
essential to identify hazardous areas and establish suppression priorities.
Each dangerous location should be addressed promptly to
reduce the likelihood of renewed fire spread.
Fire in Pine Forests
Wildfires may occur in pine forests throughout the
year and are not restricted to the dry season.
This is because virtually every part of a pine tree
contains highly flammable resin.
Furthermore, pine needles dry rapidly and decompose
slowly, producing a continuous layer of highly combustible forest litter.
Three principal fire types may occur in pine forests:
- surface fires;
- crown fires; and
- combined
surface and crown fires.
Surface fires can generally be controlled using thorough mop-up
operations.
Crown fires require construction of firelines and, where
necessary, mechanical felling of trees located within the designated fireline.
When both surface and crown fires occur simultaneously,
suppression should combine mop-up operations with fireline construction.
In exceptional situations, and only after careful
assessment, backfiring may also be employed.
Pine forest fires occurring on flat terrain are generally
easier to control.
Conversely, fires burning on steep slopes require
substantially greater personnel, equipment, financial resources, and
operational expertise.
Suppression Techniques for Pine Forest Fires on Steep
Slopes
Where pine forest fires occur on steep mountainous
terrain, the following operational procedures should be followed:
- Construct the
primary fireline behind the ridge on the slope opposite the advancing head
fire. The fireline should be located relatively close to the ridgeline.
- Select
suitable anchor points using existing natural or artificial barriers such
as footpaths, streams, rocky cliffs, previous landslides, or previously
burned areas to connect the constructed fireline.
- Remove
branches, stumps, standing dead trees, and other hazardous fuels located
within the fireline that could facilitate fire spread.
- Once the
fireline has been completed, initiate backfiring according to the
following sequence:
- Ignite the
backfire at the selected anchor point where the constructed fireline
connects with a natural barrier such as a road or stream.
- Continue
ignition along the edge of the fireline facing the advancing head fire.
- Extend the
ignition progressively along both flanks while moving downslope.
- If the
advancing wildfire develops fingers or spot extensions, direct the
backfire toward these projections.
- Conduct the
backfiring operation continuously and without unnecessary interruption to
ensure effective containment.
CONCLUSION
The successful management of special wildfire situations
requires a thorough understanding of fire behavior, fuel characteristics,
terrain conditions, and appropriate suppression techniques.
No single suppression method is universally applicable.
Instead, firefighters must continuously evaluate changing
conditions and select the safest and most effective operational strategy for
each specific fire scenario.
Proper planning, well-trained personnel, suitable
equipment, strict adherence to safety procedures, and active community
participation remain the cornerstones of effective forest and land fire
management.
SOURCE
Jurnal Atani Tokyo, Terbongkar!
Pedoman Ampuh Cegah Kebakaran
Hutan & Lahan Sebelum Terlambat. https://atanitokyo.blogspot.com/2015/10/pedoman-pencegahan-dan-pengendalian.html
#ForestFire
#WildfirePrevention
#FireManagement
#ForestProtection
#ClimateResilience
