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During the first 3 years after a severe wildfire in 1970, maximum concentrations of nitrate-N (NO3-N) in stream water increased from prefire levels of <0.016 to 0.$6 mg/liter on a burned, unfertilized watershed and to 0.54 and 1.47 mg/liter on…
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In preparing a state-of-knowledge review for fire and fauna, our basic reference source was the chapter "Effects of Fire on Birds and Mammals," by J. F. Bendell (1974) in the book "Fire and Ecosystems". In addition to summarizing this 52-page paper…
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In early September 1975, two clearcuts (14 and 17 acres; 5.7 and 6.9 ha), two sets of 4 small clearcuts (1.5 acres; 0.6 ha each), and one shelterwood cutting (22 acres; 8.9 ha) were broadcast burned principally for seedbed preparation and fuel…
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Development of equations for predicting fuel bed depth (called "bulk depth" herein) appropriate for modeling fire behavior in slash is described. Bulk depth (y) was correlated with the expected number of 1/4-to 1-inch-diameter particle…
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Sorption studies of ponderosa pine (Pinus ponderosa Laws.) needles and litter beds of current year cast show a shorter response time and lower equilibrium moisture contents than most other conifer needle data in the literature. For conditions below…
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ANNOTATION: Relationships between live and dead crown weight and DBH, crown length, tree height, and crown ratio are presented for 11 Rocky Mountain conifers. Also included are partitioned estimates of crown foliage and branchwood. This study shows…
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From the text ... 'The quantitative effects of the reduction in soil-water loss by evapotranspiration vary under different physiographic conditions, intensities or vegetation removal or deadening, and the kind of vegetation removed. Intense wildfire…
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Concentration of Na, K, Ca, Mg, and N in precipitation falling through smoke during a forest fire was 20 to 70 times greater than in normal precipitation. Climatic conditions during the Pine Creek fire in central Idaho were optimal for collecting…
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From the text ... 'Many forest types owe their origin, perpetuation, and distinctive characteristics to fire. What may be called the normal hydrologic behavior of many forested watersheds already incorporates some effect of fire -- both natural and…
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Reviews current knowledge of the effects of intensive wood utilization, prescribed burning, or a combination of both treatments, on the microbial ecology of forest soils. Identifies additional research that must be done to fill voids in knowledge.
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Conventional statistical techniques are used to answer the question, "What is the necessary station density for a fire danger network?" The Burning Index of the National Fire-Danger Rating System is used as an indicator of fire danger.…
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In the year following the 1961 Sleeping Child forest fire on the Bitterroot National Forest, Montana, 11 permanent transects were established within the burn. Vegetation development was recorded through 1973, but only four transects were considered…
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Equations were developed for estimating fuel loading (g/m2) of grasses, narrow-leaved forbs, broad-leaved forbs, and small woody plants common to western Montana and north Idaho. Independent variables were plant height and percentage of ground…
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Problems being encountered in implementing fire prevention programs were explored by studying the organization for fire prevention at the Fish Lake, Uinta, and Wasatch National Forests in Utah. The study focused on role congruency in fire prevention…
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Presents frequencies, intensities, and influences of fire on stand structure and composition on the Bitterroot National Forest in west-central Montana. Three study areas were established, each having a wide range of elevations and forest types.…
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