Role of wetlands in reducing phosphorus loading to surface water in eight watersheds in the Lake Champlain Basin
Identifieur interne : 001658 ( Main/Merge ); précédent : 001657; suivant : 001659Role of wetlands in reducing phosphorus loading to surface water in eight watersheds in the Lake Champlain Basin
Auteurs : Christine M. Weller [États-Unis] ; Mary C. Watzin [États-Unis] ; Deane Wang [États-Unis]Source :
- Environmental Management [ 0364-152X ] ; 1996-09-01.
Abstract
Abstract: A landscape-level approach was applied to eight rural watersheds to assess the role that wetlands play in reducing phosphorus loading to surface waters in the Lake Champlain Basin. Variables summarizing various characteristics of wetlands within a watershed were calculated using a geographic information system and then compared to measured phosphorus loading through multiple regression analyses. The inclusion of a variable based on the area of riparian wetlands located along low- and medium-order streams in conjunction with the area of agricultural and nonwetland forested lands explained 88% of the variance in phosphorus loading to surface waters. The best fit model coefficients (Pload = 0.86Ag + 0.64For − 30Ripwet + 160) suggest that a hectare of riparian wetland may be many times more important in reducing phosphorus than an agricultural hectare is in producing phosphorus. These results provide additional support for the concept that protection of riparian wetlands is an important management strategy for controlling stream water quality in multiuse landscapes.
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DOI: 10.1007/BF01204144
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Weller</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>School of Natural Resources, University of Vermont, 05405, Burlington, Vermont</wicri:regionArea><placeName><region type="state">Vermont</region></placeName></affiliation></author><author><name sortKey="Watzin, Mary C" sort="Watzin, Mary C" uniqKey="Watzin M" first="Mary C." last="Watzin">Mary C. Watzin</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>School of Natural Resources, University of Vermont, 05405, Burlington, Vermont</wicri:regionArea><placeName><region type="state">Vermont</region></placeName></affiliation></author><author><name sortKey="Wang, Deane" sort="Wang, Deane" uniqKey="Wang D" first="Deane" last="Wang">Deane Wang</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>School of Natural Resources, University of Vermont, 05405, Burlington, Vermont</wicri:regionArea><placeName><region type="state">Vermont</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Environmental Management</title><title level="j" type="abbrev">Environmental Management</title><idno type="ISSN">0364-152X</idno><idno type="eISSN">1432-1009</idno><imprint><publisher>Springer-Verlag</publisher><pubPlace>New York</pubPlace><date type="published" when="1996-09-01">1996-09-01</date><biblScope unit="volume">20</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="page" from="731">731</biblScope><biblScope unit="page" to="739">739</biblScope></imprint><idno type="ISSN">0364-152X</idno></series><idno type="istex">277EE931067A0131C45C45EC33310BE455E65CF5</idno><idno type="DOI">10.1007/BF01204144</idno><idno type="ArticleID">BF01204144</idno><idno type="ArticleID">Art12</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0364-152X</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: A landscape-level approach was applied to eight rural watersheds to assess the role that wetlands play in reducing phosphorus loading to surface waters in the Lake Champlain Basin. Variables summarizing various characteristics of wetlands within a watershed were calculated using a geographic information system and then compared to measured phosphorus loading through multiple regression analyses. The inclusion of a variable based on the area of riparian wetlands located along low- and medium-order streams in conjunction with the area of agricultural and nonwetland forested lands explained 88% of the variance in phosphorus loading to surface waters. The best fit model coefficients (Pload = 0.86Ag + 0.64For − 30Ripwet + 160) suggest that a hectare of riparian wetland may be many times more important in reducing phosphorus than an agricultural hectare is in producing phosphorus. These results provide additional support for the concept that protection of riparian wetlands is an important management strategy for controlling stream water quality in multiuse landscapes.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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