Nutrient Cycling in the Kenai River Watershed PDF Download
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Author: University of Victoria (B.C.). Water and Watershed Ecology
Publisher:
ISBN:
Category : Biotic communities
Languages : en
Pages : 8
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Author: University of Victoria (B.C.). Water and Watershed Ecology
Publisher:
ISBN:
Category : Biotic communities
Languages : en
Pages : 8
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Category : Exxon Valdez Oil Spill, Alaska, 1989
Languages : en
Pages : 60
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Book Description
This report describes an interdisciplinary research plan to implement a long-term integrated program on nutrient cycling and energy pathways that link freshwater habitats, their surrounding drainage basins including riparian areas, wetlands and terrestrial environments and downstream nearshore marine ecosystems.
Author:
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Category : Aquatic habitats
Languages : en
Pages : 248
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Author: Lauren Elyse McPhillips
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Category :
Languages : en
Pages : 238
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Book Description
As urbanization has increased across the United States and the world, we have manipulated the way that water and nutrients move around the landscape. This creates potential conditions for nutrient cycling hotspots- zones of higher reaction rates relative to surrounding areas- in certain features of developed landscapes. While there has been research on various aspects of biogeochemical processes in urban and suburban landscapes, we still lack a comprehensive understanding of where and when particular urbanized features act as hotspots for certain nutrient cycling processes. This research fills this gap by investigating how hydrology and nutrient availability control the occurrence of hotspots, with a focus on stormwater control measures (SCMs) in suburban watersheds in central New York State. In a field comparison of wet and dry stormwater detention basins, wet basins were hotspots for both methane (CH4) emissions and potential denitrification. A follow-up study focusing on organic matter amendments in stormwater basins compared a bioretention-style basin with compost in its soil media to a grassed detention basin. High nutrient content in the bioretention basin media made it a hotspot for export of dissolved carbon, nitrogen and phosphorus and elevated carbon dioxide (CO2) emissions. A third study applied similar techniques to study nutrient cycling in different suburban landscape featuresgrassed roadside ditches and lawns. Here, ditches- like the wet basins- were a hotspot for CH4 emissions but also for nitrate removal via denitrification. Nutrient availability thanks to fertilization drove greenhouse gas emissions in adjacent lawns, which demonstrated higher rates of nitrous oxide (N2O) and CO2 emissions compared to ditches. With all of these findings, we can inform improved design of suburban landscapes and SCMs, so that we can maximize beneficial water quality services like denitrification and mimimize disservices ii like greenhouse gas emissions.
Author: Andrew R. Longmore
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ISBN: 9781742640211
Category : Nitrogen cycle
Languages : en
Pages : 48
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Author: Andrew R. Longmore
Publisher:
ISBN: 9781742175867
Category : Denitrification
Languages : en
Pages : 25
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Author: Andrew R. Longmore
Publisher:
ISBN: 9781742175836
Category : Denitrification
Languages : en
Pages : 37
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Author:
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Category : Water
Languages : en
Pages : 472
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Author:
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Category : Forests and forestry
Languages : en
Pages : 650
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Author: Margaret R. White
Publisher:
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Category : Atmospheric carbon dioxide
Languages : en
Pages : 260
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