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LAND USE AND AQUATIC BIOINTEGRITY IN THE BLACKFOOT RWER WATERSHED, MONTANA

Identifieur interne : 001223 ( Istex/Corpus ); précédent : 001222; suivant : 001224

LAND USE AND AQUATIC BIOINTEGRITY IN THE BLACKFOOT RWER WATERSHED, MONTANA

Auteurs : Julie A. Rothrock ; Paul K. Barten ; Gary L. Ingman

Source :

RBID : ISTEX:3531AE18BC1441856B60CF1481DB296157416E6A

English descriptors

Abstract

ABSTRACT: Benthic macroinvertebrate samples representing 151 taxa were collected in August 1995 to examine the linkage between land use, water quality, and aquatic biointegrity in seven tributaries of the Blackfoot River watershed, Montana. The tributaries represent silvicultural (timber harvesting), agricultural (irrigated alfalfa and hay and livestock grazing), and wilderness land uses. A 2.4 km (1.5 mile) reach of a recently restored tributary also was sampled for comparison with the other six sites. A geographic information system (GIS) was used to characterize the seven subwatersheds and estimate soil erosion, using the Modified Universal Soil Loss Equation, and sediment delivery. The wilderness stream had the highest aquatic biointegrity. Two agricultural streams had the largest estimated soil erosion and sediment delivery rates, the greatest habitat impairment from nonpoint source pollution, and the most impoverished macroinvertebrate communities. The silvicultural subwatersheds had greater rates of estimated soil erosion and sediment delivery and lower aquatic biointegrity than the wilderness reference site but evinced better conditions than the agricultural sites. A multiple‐use (forestry, grazing, and wildlife management) watershed and the restored site ranked between the silvicultural and agricultural sites. This spectrum of land use and aquatic biointegrity illustrates both the challenges and opportunities that define watershed management.

Url:
DOI: 10.1111/j.1752-1688.1998.tb00955.x

Links to Exploration step

ISTEX:3531AE18BC1441856B60CF1481DB296157416E6A

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<p>Respectively, Assistant Health Scientist, McLaren/Hart ChemRisk, Inc., 1685 Congress St., Portland, Maine 04102; Associate Professor of Forest Resources Management, University of Massachusetts, Department of Forestry and Wildlife Management, Holdsworth Natural Resources Center, Box 34210, Amherst, Massachusetts 010034210; and Chief, Monitoring and Data Management Bureau, Planning, Prevention and Assistance Division, Montana Department of Environmental Quality, P.O. Box 200901, Helena, Montana 59620 (E‐Mail/Barten:
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<abstract>ABSTRACT: Benthic macroinvertebrate samples representing 151 taxa were collected in August 1995 to examine the linkage between land use, water quality, and aquatic biointegrity in seven tributaries of the Blackfoot River watershed, Montana. The tributaries represent silvicultural (timber harvesting), agricultural (irrigated alfalfa and hay and livestock grazing), and wilderness land uses. A 2.4 km (1.5 mile) reach of a recently restored tributary also was sampled for comparison with the other six sites. A geographic information system (GIS) was used to characterize the seven subwatersheds and estimate soil erosion, using the Modified Universal Soil Loss Equation, and sediment delivery. The wilderness stream had the highest aquatic biointegrity. Two agricultural streams had the largest estimated soil erosion and sediment delivery rates, the greatest habitat impairment from nonpoint source pollution, and the most impoverished macroinvertebrate communities. The silvicultural subwatersheds had greater rates of estimated soil erosion and sediment delivery and lower aquatic biointegrity than the wilderness reference site but evinced better conditions than the agricultural sites. A multiple‐use (forestry, grazing, and wildlife management) watershed and the restored site ranked between the silvicultural and agricultural sites. This spectrum of land use and aquatic biointegrity illustrates both the challenges and opportunities that define watershed management.</abstract>
<note type="content">*Paper No. 96144 of the Journal of the American Water Resources Association. Discussions are open until February 1, 1999.</note>
<subject lang="en">
<genre>keywords</genre>
<topic>macroinvertebrates</topic>
<topic>aquatic ecosystems</topic>
<topic>land use</topic>
<topic>GIS</topic>
<topic>biomonitoring</topic>
<topic>nonpoint source pollution</topic>
<topic>sediment delivery</topic>
<topic>soil erosion</topic>
<topic>watershed management</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>JAWRA Journal of the American Water Resources Association</title>
</titleInfo>
<genre type="journal">journal</genre>
<identifier type="ISSN">1093-474X</identifier>
<identifier type="eISSN">1752-1688</identifier>
<identifier type="DOI">10.1111/(ISSN)1752-1688</identifier>
<identifier type="PublisherID">JAWR</identifier>
<part>
<date>1998</date>
<detail type="volume">
<caption>vol.</caption>
<number>34</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>3</number>
</detail>
<extent unit="pages">
<start>565</start>
<end>581</end>
<total>17</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">3531AE18BC1441856B60CF1481DB296157416E6A</identifier>
<identifier type="DOI">10.1111/j.1752-1688.1998.tb00955.x</identifier>
<identifier type="ArticleID">JAWR565</identifier>
<recordInfo>
<recordContentSource>WILEY</recordContentSource>
<recordOrigin>Blackwell Publishing Ltd</recordOrigin>
</recordInfo>
</mods>
</metadata>
<serie></serie>
</istex>
</record>

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