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Fire Effects On Plant Nutrient Content In Arizona Chaparral
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Book Synopsis Fire Effects on Plant Nutrient Content in Arizona Chaparral by : Gary L. Whysong
Download or read book Fire Effects on Plant Nutrient Content in Arizona Chaparral written by Gary L. Whysong and published by . This book was released on 1991 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Chaparral-to-grass Conversion on Wildfire Suppression Costs by : Thomas Capnor Brown
Download or read book Effects of Chaparral-to-grass Conversion on Wildfire Suppression Costs written by Thomas Capnor Brown and published by . This book was released on 1974 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Effects of Fire on Available Nitrogen and Phosphorus in Arizona Chaparral by : Steven Tracy Overby
Download or read book Direct Effects of Fire on Available Nitrogen and Phosphorus in Arizona Chaparral written by Steven Tracy Overby and published by . This book was released on 1994 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Fire on Madrean Province Ecosystems by :
Download or read book Effects of Fire on Madrean Province Ecosystems written by and published by . This book was released on 1996 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nutrient Status of the Chaparral Plant-soil System During Stand Development After Fire by : Wende Ellen Rehlaender
Download or read book Nutrient Status of the Chaparral Plant-soil System During Stand Development After Fire written by Wende Ellen Rehlaender and published by . This book was released on 1992 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Heating in Chaparral Fires by : Leonard F. Debano
Download or read book Soil Heating in Chaparral Fires written by Leonard F. Debano and published by . This book was released on 1979 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fire Effects on Ecosystems by : Leonard F. DeBano
Download or read book Fire Effects on Ecosystems written by Leonard F. DeBano and published by John Wiley & Sons. This book was released on 1998-03-09 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive exploration of the effects of fires--in forests and other environments--on soils, watersheds, vegetation, air and cultural resources.
Download or read book Effects of Fire on Soil written by and published by . This book was released on 1979 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Fire on Chaparral by : Harold Hubert Biswell
Download or read book Effects of Fire on Chaparral written by Harold Hubert Biswell and published by . This book was released on 1973* with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Fire on Soil Mineral Nutrients in a Southern California Soft Chaparral Community by : John Timothy Ball
Download or read book Effects of Fire on Soil Mineral Nutrients in a Southern California Soft Chaparral Community written by John Timothy Ball and published by . This book was released on 1977 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Post-fire Effects in Chaparral and Oak Ecosystems of Northern California by : Abigail M. Jones
Download or read book Post-fire Effects in Chaparral and Oak Ecosystems of Northern California written by Abigail M. Jones and published by . This book was released on 2021 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The issue of wildfires, hazard fuels management, and post-fire tree mortality has become an increasingly common topic in the western United States. This thesis is composed of two studies, with the first study, Chapter 1, examining fuel treatment effectiveness and the second study, Chapter 2, striving to characterize post-fire mortality in oaks. Prior to wildfire, fuel reduction projects may take place to decrease the likelihood of high severity fire around human infrastructure and communities. Within California’s chaparral ecosystems, common treatment types include hand-thinning, prescribed burning, mechanical mastication, and mechanical mastication followed with prescribed burning. Because chaparral has a longer historical fire return interval and these ecosystems do not need frequent fire disturbance, the efficacy of these treatment types is debated. Our study had the rare opportunity to collect data on fine woody fuel loading, shrub density, and vegetation both immediately before and one year following wildfire in northern California’s Whiskeytown National Recreation Area. Using these comparisons, our goal was to determine the post-fire response of each treatment type and determine an effective fuels treatment in chaparral to mitigate fire behavior, while maintaining ecosystem integrity and supporting native species habitat. The severity of the wildfire was moderate across the study site and did not differ among treatments. Post-fire live shrub density and live shrub height also were not influenced by treatment type, but oak dominated sites had greater live shrub density after wildfire. Fine woody fuel loading levels differed by treatment type, with prescribed burned units having the greatest levels in both chaparral and oak sites. Fine woody fuel consumption was lowest in hand-thinned units. Total plant species richness increased in all treatment types following wildfire, largely driven by an increase in exotic species, as native plant cover decreased and exotic species cover increased across all treatments. This study suggests that areas of chaparral may need to be retreated sooner than this timeframe to reduce fire severity. However, retreating these systems may not be economically feasible and it remains unclear if treatments will meet fuel and fire behavior objectives. Land managers are concerned about post-fire mortality of trees and rely on statistical models of tree mortality in post-fire decision making. While many studies have evaluated the accuracy of these models in conifers, the performance of these models on hardwood species, specifically oak species, has been understudied. Models, such as FOFEM and FVS-FFE, can help land managers to predict which trees will die following fire and can help in hazard tree removal and post-fire salvage logging operations. These models, however, have been exclusively developed using western United States conifer species, bringing into question the veracity of these models for hardwood species. The purpose of this study was to test current mortality models using observations from wildfire and prescribed burn sites in northern California for two oak species, California black oak (Quercus kelloggii) and canyon live oak (Quercus chrysolepis). Our findings suggest that both modeling approaches performed well, but Random Forest was better at predicting probability of mortality for an imbalanced dataset. When using imbalanced datasets, logistic regression can underpredict mortality, which can have negative repercussions for land managers dealing with recently burned ecosystems containing oaks.
Book Synopsis Predicting Fire Spread in Arizona's Oak Chaparral by : Anson William Lindenmuth
Download or read book Predicting Fire Spread in Arizona's Oak Chaparral written by Anson William Lindenmuth and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Fire Management of Southwestern Natural Resources by :
Download or read book Effects of Fire Management of Southwestern Natural Resources written by and published by . This book was released on 1990 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings is a collection of papers and posters presented at the Symposium on Effects of Fire Management of Southwestern Natural Resources held in Tucson, Arizona, November 15-17, 1988. Included are papers, poster papers and a comprehensive list of references on the effects of fire on: plant succession, cultural resources, hydrology, range and wildlife resources, soils, recreation, smoke management, and monitoring techniques pertinent to prescribed fire management in the southwestern United States.
Book Synopsis Effects of Fire on Factors Controlling Plant Growth in Adenostoma Chaparral by : Norman L. Christensen
Download or read book Effects of Fire on Factors Controlling Plant Growth in Adenostoma Chaparral written by Norman L. Christensen and published by . This book was released on 1973 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mediterranean-Type Ecosystems by : F.J. Kruger
Download or read book Mediterranean-Type Ecosystems written by F.J. Kruger and published by Springer. This book was released on 2011-12-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory of ecological convergence underlies the biogeographers' maps of world biome-types. It also determines the degree to which ecological principles, derived from research on particular populations, communities or ecosystems, are generally valid, and hence also to what extent resource management principles are general. To quote Di Castri and Mooney (1973): "In effect, in order to assess the transfer of technology, it is essential to know to what extent information acquired from studying one particular ecosystem is applicable to another ecosystem of the same type but situated in a different location. " The five relatively small, isolated, mediterranean-climate zones of the earth, each with its distinct fauna and flora, have provided the ideal testing grounds for this theory. A heritage of precisely focused ecosystems research has resulted, beginning with the international comparative analyses conducted by Specht (l969a, b) but with antecedents in earlier studies in South Australia (Specht and Rayson 1957, Specht 1973). Cody and Mooney (1978) reviewed the information available at the time for the four zones excepting Australia and concluded that the arrays of strategy-types to be found among the different biotas were so similar that they could be explained only in terms of the convergence hypothesis; nevertheless, evident differences in community organization and dynamics, especially phenol ogy, required closer study of resource availability and resource-use patterns to better explain relations between form and function overall, and to assess the degree of convergence at higher levels of organization than the population.
Book Synopsis Effects of Fire on Madrean Province Ecosystems by :
Download or read book Effects of Fire on Madrean Province Ecosystems written by and published by . This book was released on 1996 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: