Download or read book Vegetation Response to Wildfire and Climate Forcing in a Rocky Mountain Lodgepole Pine Forest Over the Past 2 500 Years written by Barrie Victoria Chileen and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Invasions and Global Climate Change written by Sachchidanand Tripathi and published by Springer Nature. This book was released on 2023-11-25 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book provides an ensemble of contemporary research related to the challenges, impacts and precautionary measures for tackling plant invasions in the context of changing climate in different regions of the world. In current scenario, plant invasions are expansive and significant component of anthropogenic global climate change. Temperature variations may compromise the adaptability of native species, thereby stressing them and decreasing the resistance potential of natural communities to invasion. Invasive alien species under the current scenario have been suggested as a major threat to biodiversity. It is also predicted that increasing disturbances or extreme events such as fires, floods, cyclones, storms, heat-waves, droughts, etc. will be direct consequences of changing climate supporting the invasive alien species. A comprehensive understanding of the interaction between species invasion and climate change will be supplemental in forecasting future shifts in biodiversity. Further, different predictive models indicate a plausible increase in the abundance and impact of invasive alien species which may have direct implications for future research and target-oriented policy and decision making. However, these predictions become more complicated considering the complexity of interactions between the impacts of changing climate with other components of global change (changes in land use, nitrogen deposition, etc.) which are affecting the distribution of native plant species, ecosystem dynamics as well as non-native/invasive species. This book will be suitable for students (undergraduate and postgraduates) of agriculture, forestry, ecology, soil science, and environmental sciences; teachers, researchers, and climate change scientists in academic and research institutions. It will also be applicable to environmental management agencies, government agencies and policy makers.
Download or read book Cascading Effects of Fire Exclusion in Rocky Mountain Ecosystems written by Robert E. Keane and published by . This book was released on 2002 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The health of many Rocky Mountain ecosystems is in decline because of the policy of excluding fire in the management of these ecosystems. Fire exclusion has actually made it more difficult to fight fires, and this poses greater risks to the people who fight fires and for those who live in and around Rocky Mountain forests and rangelands. This paper discusses the extent of fire exclusion in the Rocky Mountains, then details the diverse and cascading effects of suppressing fires in the Rocky Mountain landscape by spatial scale, characteristic, and vegetation type. Also discussed are the varied effects of fire exclusion on some important, keystone ecosystems and human concerns.
Download or read book Lodgepole Pine Commercial Forests written by Peter Koch and published by . This book was released on 1996 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildfire Effects on a Ponderosa Pine Ecosystem written by Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) and published by . This book was released on 1977 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wildfire of variable severity swept through 717 acres (290 ha) of ponderosa pine forest in north-central Arizona in May 1972. Where the fire was intense it killed 90% of the small trees and 50% of the sawtimber, burned 2.6 in (6.5 cm) of forest floor to the mineral soil, and induced a water-repellent layer in the sandier soils. The reduced infiltration rates, which greatly increased water yield from severely burned areas during unusually heavy fall rains, caused soils to erode and removed some nutrients which had been mineralized by the fire. Water yields have declined each year toward prefire levels.
Download or read book Foliar Nitrogen Patterns Following Stand replacing Fire in Lodgepole Pine Pinus Contorta Var Latifolia Forests of the Rocky Mountains USA written by Kristine L. Metzger and published by . This book was released on 2006 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Little previous work has been conducted on effects of natural, high-severity wildfires on nitrogen (N) dynamics. We measured aboveground plant biomass, foliar N, and N mineralization 2 years after stand-replacing fires in lodgepole pine (Pinus contorta var. latifolia) forests in Grand Teton National Park, Wyoming, USA. We detected a five-fold difference in foliar N (% dry weight) among 14 species, from 0.77% in the native grass Calamagrostis rebescens, to 3.4% in the native N-fixer Lupinus argenteus and the non-native forb Lactuca serriola. We also obersved higher foliar N in the burn stands for four of six species that occurred in both burned and unburned areas. Mean net N mineralization ranged from -23 to +27 mg-N kg soil1year1, and was predominantly NO(3). However, total biomass and foliar N, for all species combined, showed no relationships with site, fire severity or net N mineralization -possibly because of (i) lack of inorganic N limitation, (ii) methodological shortcomings, (iii) spatial structure existing at different scales than we measured, or (iv) insufficient plant biomass at this early stage of post-fire development to respond to local variation in N availability.
Download or read book Effects of Timber Harvest Following Wildfire in Western North America written by and published by . This book was released on 2009 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis provides an ecological foundation for management of the diverse ecosystems and fire regimes of North America, based on scientific principles of fire interactions with vegetation, fuels, and biophysical processes. Although a large amount of scientific data on fire exists, most of those data have been collected at small spatial and temporal scales. Thus, it is challenging to develop consistent science-based plans for large spatial and temporal scales where most fire management and planning occur. Understanding the regional geographic context of fire regimes is critical for developing appropriate and sustainable management strategies and policy. The degree to which human intervention has modified fire frequency, intensity, and severity varies greatly among different ecosystems, and must be considered when planning to alter fuel loads or implement restorative treatments. Detailed discussion of six ecosystems--ponderosa pine forest (western North America), chaparral (California), boreal forest (Alaska and Canada), Great Basin sagebrush (intermountain West), pine and pine-hardwood forests (Southern Appalachian Mountains), and longleaf pine (Southeastern United States)--illustrates the complexity of fire regimes and that fire management requires a clear regional focus that recognizes where conflicts might exist between fire hazard reduction and resource needs. In some systems, such as ponderosa pine, treatments are usually compatible with both fuel reduction and resource needs, whereas in others, such as chaparral, the potential exists for conflicts that need to be closely evaluated. Managing fire regimes in a changing climate and social environment requires a strong scientific basis for developing fire management and policy. --
Download or read book Effects of Wildfire on Elk and Deer Use of a Ponderosa Pine Forest written by William H. Kruse and published by . This book was released on 1972 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Colorado Front Range written by Thomas T. Veblen and published by . This book was released on 1991 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Fuel Loadings and Predicted Fire Behavior for Vegetation Types in the Northern Rocky Mountains written by James Kerr Brown and published by . This book was released on 1986 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stereo Photo Series for Quantifying Natural Fuels Lodgepole pine quaking aspen and gambel oak types in the Rocky Mountains written by Roger D. Ottmar and published by . This book was released on 1998 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Life History of Lodgepole Burn Forests written by Frederic Edward Clements and published by . This book was released on 1910 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trees in Trouble written by Daniel Mathews and published by Catapult. This book was released on 2020-04-07 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: A troubling story of the devastating and compounding effects of climate change in the Western and Rocky Mountain states, told through in–depth reportage and conversations with ecologists, professional forest managers, park service scientists, burn boss, activists, and more. Climate change manifests in many ways across North America, but few as dramatic as the attacks on our western pine forests. In Trees in Trouble, Daniel Mathews tells the urgent story of this loss, accompanying burn crews and forest ecologists as they study the myriad risk factors and refine techniques for saving this important, limited resource. Mathews transports the reader from the exquisitely aromatic haze of ponderosa and Jeffrey pine groves to the fantastic gnarls and whorls of five–thousand–year–old bristlecone pines, from genetic test nurseries where white pine seedlings are deliberately infected with their mortal enemy to the hottest megafire sites and neighborhoods leveled by fire tornadoes or ember blizzards. Scrupulously researched, Trees in Trouble not only explores the devastating ripple effects of climate change, but also introduces us to the people devoting their lives to saving our forests. Mathews also offers hope: a new approach to managing western pine forests is underway. Trees in Trouble explores how we might succeed in sustaining our forests through the challenging transition to a new environment.
Download or read book Historical Wildfire Impacts on Ponderosa Pine Tree Overstories written by Peter F. Ffolliott and published by . This book was released on 2008 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Rodeo-Chediski Wildfire--the largest in Arizona's history--damaged or destroyed ecosystem resources and disrupted ecosystem functioning in a largely mosaic pattern throughout the ponderosa pine (Pinus ponderosa) forests exposed to the burn. Impacts of this wildfire on tree overstories were studied for 5 years (2002 to 2007) on two watersheds in the area burned. One watershed was burned by a high severity (stand-replacing) fire, while the other watershed was burned by a low severity (stand-modifying) fire. In this paper, we focus on the effects of the wildfire on stand structures, post-fire mortality of fire-damaged trees, and stocking of tree reproduction. We also present a fire severity classification system based on the fire-damaged tree crowns and a retrospective description of fire behavior on the two burned watersheds.
Download or read book UNDERSTANDING TRAJECTORIES OF LANDSCAPE CHANGE written by Catherine Tasarla Lauvaux and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Naturally functioning forest ecosystems have been called gemstones of the Rocky Mountain landscape, and yet, since Euro-American settlement, these forests have been altered by land-use, fire suppression, extreme wildfires, and climate change. Understanding the changes is limited by lack of information about historical conditions. Knowledge of pre-settlement vegetation patterns and disturbance processes may also be useful in predicting and mitigating future ecological impacts. This study uses repeat aerial photography, fire-scar dendrochronology, tree population age structure, and grazing reports to determine fire history and land-use history and the characteristics, timing, and drivers of vegetation change in a forest-sagebrush-grassland mosaic in the Soldier Mountains, Idaho. Fire frequency before 1900 was greater in low-elevation Douglas-fir forests than highelevation whitebark pine forests (mean interval of 31(28.8) years vs 66 (34.4) years). Climate was a driver of widespread fires as evidenced by fires burning across multiple forest types during extremely dry years. Pre-settlement fires created a heterogeneous forest structure of even-aged, high severity stands and uneven-aged, low to moderate severity stands across the landscape. Livestock grazing, climate variation, and recent fires have altered vegetation patterns in several ways. In sagebrush-grasslands, tree encroachment peaked in the 1960s following a steep decline in sheep grazing and a period with cool, wet summers. In whitebark pine forests, regeneration declined after fire suppression in the early 1900s. Then, in the late 2000s, many whitebark succumbed to combined drought related stress and beetle attack. In contrast to presettlement patterns of mixed severity fire effects, a 2013 wildfire had predominately high severity effects in Douglas-fir forests, potentially erasing heterogeneity in the forest and indicating that restoring the historical forest structure may be time sensitive.
Download or read book Fire and Vegetative Trends in the Northern Rockies written by George E. Gruell and published by . This book was released on 1984 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Post fire Vegetation and Climate Dynamics in Low elevation Forests Over the Last Three Millennia in Yellowstone National Park written by M. Allison Stegner and published by . This book was released on 2019 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conifer forests of the western US are historically well adapted to wildfires, but current warming is creating novel disturbance regimes that may fundamentally change future forest dynamics. Stand-replacing fires can catalyze forest reorganization by providing periodic opportunities for establishment of new tree cohorts that set the stage for stand development for centuries to come. Extensive research on modern and past fires in the Northern Rockies reveals how variations in climate and fire have led to large changes in forest distribution and composition. Unclear, however, is the importance of individual fire episodes in catalyzing change. We used high-resolution paleoecologic and paleoclimatic data from Crevice Lake (Yellowstone National Park, Wyoming, USA), to explore the role of fire in driving low-elevation forest dynamics over the last 2820 yr. We addressed two questions: 1) did low-elevation forests at Crevice Lake experience abrupt community-level vegetation changes in response to past fire events? 2) Did the interaction of short-term disturbance events (fire) and long-term climate change catalyze past shifts in forest composition? Over the last 2820 yr, we found no evidence for abrupt community-level vegetation transitions at Crevice Lake, and no evidence that an interaction of climate and fire produced changes in the relative abundance of dominant plant taxa. In part, this result reflects limitations of the datasets to detect past event-specific responses and their causes. Nonetheless, the relative stability of the vegetation to fires over the last 2820 yr provides a local baseline for assessing current and future ecological change. Observations of climate?fire?vegetation dynamics in recent decades suggest that this multi-millennial-scale baseline may soon be exceeded.
