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Dispatching of firefighting resources requires instantaneous or precalculated decisions. A FORTRAN computer program has been developed that can provide a list of resources in order of computed arrival time for initial attack on a fire. The program requires an accurate description of the existing road system and a list of all resources available on a planning unit.

Quantitative techniques may be applied to aid in completing various phases of land management planning. Analytical procedures which have been used include a procedure for public involvement, PUBLIC; a matrix information generator, MAGE5; an allocation procedure, linear programming (LP); and an input-output economic analysis (EA). These techniques have proven useful in the development of lane management plans for a number of National Forests in the United States.

Computer modeling has been extensively adopted for Australian forest planning over the last ten years. It has been confined almost entirely to the plantations of fast-growing species for which adequate inventory, growth, and experimental data are available. Stand simulation models have replaced conventional yield tables and enabled a wide range of alternative strategies to be evaluated for each individual stand. Simulation models for entire plantations have been found invaluable for the preparation of 1-to 5-year cutting plans and for regulating the yield over 20- to 60-year periods. Many...

The redwood and Douglas-fir region of the Coast Range and Klamath Mountains in northwestern California covers an area extending from the California Oregon border south to about 100 miles above San Francisco. The area provides more than 40 percent of California's timber products, 37 percent of its streamflow, and the most valuable habitat for salmon and steelhead trout in the State. But management of these important resources presents major problems. One difficulty is that natural landslides commonly occur, eroding slopes and depositing enormous amounts of sediment in streams. The role that...

Summary - It has been found that two instruments will yield different numerical values when used to measure identical points. A statistical approach is presented that can be used to approximate the error associated with the calibration of instruments. Included are standard statistical tests that can be used to determine if a number of successive calibrations of the same instrument can be considered to be the same curve, or if they are different. Essentially, these tests involve the determination of regression lines that have both a common slope and common intercept. The example was...

Abstract - The depletion of soil moisture within the surface 15 feet by an isolated mature sugar pine and an adjacent uncut forest in the California Sierra Nevada was measured by the neutron method every 2 weeks for 5 consecutive summers. Soil moisture recharge was measured periodically during the intervening winters. Groundwater fluctuations within the surface 50 feet were continuously recorded during the same period. Each fall, a wetting front progressed from the soil surface, eventually recharging the entire soil profile to ""field capacity"". During the recharge period, although the...

In order to evaluate alternative plans, wildland management planners must consider many objectives, such as timber production, recreational use, and community stability. The method presented utilizes the type of qualitative and intuitive information widely available to wildland management planners, and structures this information into a format suitable for decisionmaking. The method makes possible the determination of a measure of overall desirability for alternative plans, and permits the evaluation of plans under alternative value systems. Alternatives are compared through a small set of...

There is an increasing need to clarify the long-term wood supply implications of current harvesting rates. To assess the wood supply and to set timber production objectives, different linear programming techniques are applied to the short and long term. The transportation method is applied to the short term and the B. C. Forest Service computer-assisted resource planning method is applied to the long term.

By using goal programming to enhance the linear programming of Timber RAM, multiple decision criteria were incorporated in the timber management planning of a National Forest in the southeastern United States. Combining linear and goal programming capitalizes on the advantages of the two techniques and produces operationally feasible solutions. This enhancement may also be applicable to linear programming packages other than Timber RAM.

Explicit forest management planning for timber production beyond the first few years at any time necessitates use of information which can best be described as suspect. The two-step approach outlined here concentrates on the planning strategy over the next few years without losing sight of the long-run productivity. Frequent updating of the long-range and short-range plan makes it possible to keep a dynamic posture. Instead of one single objective of maximization of discounted present net worth, there are two objectives. The short-run objective implicitly maximizes the volume or the...