Principal Congressional Purposes of the Fire Science Program
Principal Purpose 1. Fuels Inventory and Mapping
"To establish and implement a comprehensive approach for fuel
mapping and inventory that involves the location and condition of fuels, the appropriate
treatment frequency, potential effects on other resources, and priorities for
treatment."
Background. There is a lack of consistent and credible
information about the current fuels management situation, including information about fuel
loads, conditions, risks, flammability and emission potential, fire regimes, locations,
and priorities for fuel treatment. There have been some regional assessments of fuel
conditions such as in the Columbia River Basin and the Sierra Nevada, but their coarse
spatial and temporal resolution does not provide the detailed data required for planning
site-specific implementation. Some local units have high resolution, ground-based
inventories and maps, although they are often incompatible in scale and content across
administrative boundaries. At present, fuels are usually inventoried and mapped without
consideration for related risks, making it difficult for managers to identify and
prioritize hazardous fuels. There are only a few locations where assessments and analyses
have been conducted at an appropriate scale, contain appropriate data, and are integrated
among management areas.
Target. The Joint Fire Science Program will develop a nationally consistent assessment
of the fuels management situation and a comprehensive analytical system that will provide
improved decision support. Remote sensing technology supported by ground truthing and
accuracy assessments will be used to develop fuels maps and databases for all geographic
areas. These maps and databases will be developed using site-specific data collected at
the field level, and will be capable of being aggregated to a larger scale to provide a
national perspective of the current fuels situation. Such an assessment will inventory
current fuel conditions using nationally defined fuel attributes that include the vertical
and horizontal structure of the fuel complex. Local fuels assessments can be linked to
models that can predict fire characteristics and effects. Information on the historic fire
regime, and the likely intensity and severity of current wildland fire will also be
collected. Fuels assessments will be linked with other databases and with geographic
information systems. Procedures for periodically updating fuels databases and assessments
at the local, regional and national levels will be consistent with monitoring and
evaluation protocols.
The Joint Fire Science Program will provide information on fuels and
fire regimes; provide a means to assess changes in fuel over time; develop improved
descriptors of fire regimes, including frequency, intensity, severity, aerial extent, and
spatial pattern; and identify and provide analytical tools to assess risk factors.
Decision support tools may include methods for identifying key factors that determine risk
to values such as property, water quality, and air quality, and methods for integrating
these risk factors into a comprehensive priority rating system for treatments.
Approach. The assessment of fuel conditions and values to be protected will follow
a tiered approach. In the short-term, the size of the problem will be determined. Using
existing data, all agencies will conduct an initial assessment of the locations and acres
of fuels that require treatment. The Joint Fire Science Program will develop and implement
a process to inventory existing fuels and vegetation data. Using this inventory, the
program can provide managers with the first comprehensive assessment of fuel condition
information, and identify inventory, mapping, and classification needs.
Projects will be undertaken to refine and compare methods for
developing information on fuel condition and values to be protected. Current agency
efforts to provide national maps (including non-fire related efforts) of vegetation and
fuel types, fire return intervals, and critical fuels management situations using remote
sensing will be accelerated and coordinated, using funds from the Joint Fire Science
Program. The feasibility of using remote sensing imagery, including an assessment of
current techniques, to produce a national map of fuels will be explored in pilot projects
in several regions of the country. Within these areas, satellite imagery and aerial
photography will be coupled with on-site fuels inventories to form nested samples. If this
approach produces acceptable results, it will be expanded to other areas.
In the long-term, interagency decision support systems, complemented by
geographic information systems, will be developed to integrate and analyze the inventory
and map data. The systems will be kept current using monitoring data from treated and
burned areas. Current techniques for inventorying fuels are incomplete and focus primarily
on flammability. New inventory tools will be developed for fire effects such as fuel
consumption, fire severity and emissions. The new tools should be low cost and small
scale, use remote sensing technology, be based upon on-the-ground comparisons and accuracy
assessments, update fuel models and information on fuel condition, and model fuel
consumption and related air quality factors.
Principal Purpose 2: Evaluation of Fuels Treatments
"To evaluate various treatment techniques for cost effectiveness,
ecological consequences, and air quality impacts."
Background. In developing, prioritizing, and implementing treatments to reduce fire
hazard, manage fire regimes, and improve forest and rangeland health and productivity, it
is important to understand the potential ecosystem responses, economic and social
consequences, and air and water quality impacts of various treatment options. Most
treatments will include some combination of prescribed fire and/or mechanical treatment.
Even when prescribed fire and mechanical treatments may have similar effects on fuel
structure and fire hazard, their impacts on essential ecosystem processes and components
may be quite different, and the implementation costs and social reaction will vary.
Federal and State regulations require that agencies address the air quality impacts of
prescribed fire treatments. Because of the magnitude of the fuels problem in many areas of
the country, increased numbers of treatments are planned to reduce fire hazard over large
areas. Multiple treatments on the same site will often be needed to mitigate the current
fuel situation, and continuing maintenance treatments will be required.
Although prescribed fire and mechanical treatments have been used
extensively, agencies lack sufficient comparative information on the ecological, social,
economic, and air and water quality effects and on interactions among continued fire
exclusion, wildland fire, and various fuels treatments to determine optimal approaches to
managing forest and rangeland fuels. Replicated studies of the ecological consequences of
prescribed fire and other silvicultural and fuels treatments have been conducted in only a
few locations and vegetation types. Fuel treatment effects and interactions vary
considerably among ecosystems. Few data are available on which to base comparisons among
different treatments, ecosystems, and fire regimes.
In particular, economic data and analyses are extremely limited.
Understanding and modelling economic impacts is particularly difficult, because they
depend on both ecosystem and locality. Information also needs to be developed on the
practicality and economics of commercial use of the biomass of small-diameter trees and
tall shrubs cleared to reduce crown fire potential. Emissions and smoke modeling research
has been conducted, but respective costs and benefits of prescribed fire and wildland fire
have not been well analyzed. Methods have not been developed to assess the opportunities,
costs, and effectiveness of employing smoke reduction techniques throughout the country.
This research would also contribute to understanding the potential national and global
impacts of changes in biomass use, prescribed fire, and wildland fire on wood supply,
atmospheric chemistry, and carbon sequestration.
Target. Managers will have sufficient information on which to select the most
ecologically appropriate, cost-effective, and socially acceptable fuels management
techniques for each treatment site. They will have guidelines to determine the appropriate
treatment, sequence, and priority, given site-specific conditions and socioeconomic
factors. Managers will be able to evaluate the effects of different types and sequences of
prescribed fire and mechanical treatments, and different intensities and severities of
wildland fire on ecological and social values, as well as be able to assess the ecological
consequences of continued lack of treatment.
Managers need assessments of fire and fuel treatment effects on
ecosystem productivity and health, plant community structure and dynamics, plant species
mortality and regeneration, fuel loading and distribution, hydrology and water quality,
soil properties and below ground processes, wildlife habitat, fisheries, and air quality.
By synthesizing existing knowledge and targeting new research at critical knowledge gaps,
the program can develop the information and models necessary to determine the relative
effects of treatments and wildland fire on resources and values such as timber, livestock
forage, recreation, riparian areas, threatened and endangered species, spread of nonnative
plants, non-traditional forest products, and archaeological, historic, and cultural sites.
Managers require an understanding of short-term, long-term and cumulative effects, and
their relationship to number, type, and sequencing of treatments. Linkages are needed
between resource production and the current and proposed condition of forests, woodlands
and rangelands. Managers must be able to engage local communities in dialogue to discover
what fuel management treatments are socially acceptable.
Techniques for assessing economic effects can be improved particularly
with respect to noncommodity values, including the economic valuation of ecological
processes and functions, such as sources of clean water or the presence of nitrogen fixing
plants and microorganisms. Methods are required for determining how various types and
levels of treatment affect revenues from nontraditional forest products, recreation, and
other sources. Benefits of fuels management treatments can be enhanced by cost-effective
biomass utilization, including using biomass as an alternative fuel source for energy
production, and using biomass in wood products.
Approach. Obtaining the necessary information in this area will
require synthesis of existing knowledge, carefully designed experiments, and monitoring.
The goal is to use both experiments and operational treatment applications to obtain data
for modeling and predictive purposes. The Program will conduct replicated experiments in a
variety of ecosystems in different climatic regimes to assess the impact of treatments on
ecosystem processes; the cause and effect relationships among different types and
sequences of prescribed fire applications and mechanical treatments; and different
intensities and severities of wildland fire. Results will be compared with existing fire
effects models, and new models will be developed as needed. Trade-offs among treatments
can be assessed in terms of ecological and social values, including: ecological responses,
reduction in potential fire intensity and severity, cost effectiveness, air quality, water
quality, and mitigation of risks to human health, safety, and property.
To test and extrapolate experimental results across broader areas,
methods will be devised for assessing operational treatments and incorporating data into
models for predicting site-specific effects. It is also necessary to expand and develop
new techniques for assessing economic efficiencies and the feasibility of developing
markets for treatment byproducts, such as small-diameter lumber and biomass. Current
models to assess regional scale cumulative effects on air quality and water quality will
need to be expanded. The program will develop a nationally consistent system of models for
fuel consumption, emission production, and smoke dispersal that can assess cumulative
effects. The program will establish demonstration sites in various communities to study
communication processes that facilitate the integration of polarized viewpoints to
determine social acceptability of treatment practices.