Effects of Disturbance on Ecosystem Dynamics of Tundra and Riparian Vegetation: A Project in the R&D Program PDF Download
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Languages : en
Pages :
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Languages : en
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Category :
Languages : en
Pages : 14
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Models were proposed as research tools to test the basic understanding of the structure and function of arctic ecosystems, as a means for providing initial management assessments of potential response to energy-related development, and as a vehicle for extrapolation of research results to other arctic sites and landscapes. This final summary report reviews progress made on models at a variety of scales from nutrient uptake by individual roots to nutrient availability within arctic landscapes, and examines potentials and critical limitations of these models for providing insight on patch and landscape level function in tundra regions.
Author: James F. Reynolds
Publisher: Springer Science & Business Media
ISBN: 366201145X
Category : Science
Languages : en
Pages : 447
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Following the discovery of large petroleum reserves in northern Alaska, the US Department of Energy implemented an integrated field and modeling study to help define potential impacts of energy-related disturbances on tundra ecosystems. This volume presents the major findings from this study, ranging from ecosystem physiology and biogeochemistry to landscape models that quantify the impact of road-building. An important resource for researchers and students interested in arctic ecology, as well as for environmental managers concerned with practical issues of disturbances.
Author: James F. Reynolds
Publisher: Springer
ISBN:
Category : History
Languages : en
Pages : 472
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Book Description
Following the discovery of large petroleum reserves in northern Alaska, the US Department of Energy implemented an integrated field and modeling study to help define potential impacts of energy-related disturbances on tundra ecosystems. This volume presents the major findings from this study, ranging from ecosystem physiology and biogeochemistry to landscape models that quantify the impact of road-building. An important resource for researchers and students interested in arctic ecology, as well as for environmental managers concerned with practical issues of disturbances.
Author: United States. Department of Energy. Office of Health and Environmental Research
Publisher:
ISBN:
Category : Atmospheric physics
Languages : en
Pages : 436
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309082951
Category : Science
Languages : en
Pages : 449
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The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Author:
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Category : Cold regions
Languages : en
Pages : 686
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Author: Therese M. Poland
Publisher: Springer Nature
ISBN: 3030453677
Category : Science
Languages : en
Pages : 455
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This open access book describes the serious threat of invasive species to native ecosystems. Invasive species have caused and will continue to cause enormous ecological and economic damage with ever increasing world trade. This multi-disciplinary book, written by over 100 national experts, presents the latest research on a wide range of natural science and social science fields that explore the ecology, impacts, and practical tools for management of invasive species. It covers species of all taxonomic groups from insects and pathogens, to plants, vertebrates, and aquatic organisms that impact a diversity of habitats in forests, rangelands and grasslands of the United States. It is well-illustrated, provides summaries of the most important invasive species and issues impacting all regions of the country, and includes a comprehensive primary reference list for each topic. This scientific synthesis provides the cultural, economic, scientific and social context for addressing environmental challenges posed by invasive species and will be a valuable resource for scholars, policy makers, natural resource managers and practitioners.
Author:
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Category : Power resources
Languages : en
Pages : 872
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Author: Andres Felipe Baron Lopez
Publisher:
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Category :
Languages : en
Pages : 111
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The results suggest that the undisturbed tundra soils contain large pools of buried organic matter that has been protected from decomposition by cold temperatures that inhibit microbial activity. RTS, as an abrupt spatial and temporal disturbance, have the capacity to rearrange massive quantities of surface soil and the C and N it contains, modifying the ecosystem soil and vegetation composition dynamics. RTS acts as a generator of new niches for plant colonization, exposes rich-nutrient mineral soil layers, mobilizes sediment to receiving waters, and modifies the local topography. RTS dynamics through time have the capacity to substantially alter the form and function in upland arctic tundra. Understanding the effects of RTS on ecosystem C and N dynamics offers a unique opportunity to establish links between climate change and the ecological impacts of changing disturbance regimes.
