CHANGING NEAR-STREAM LAND USE AND RWER CHANNEL MORPHOLOGY IN THE VENEZUELAN ANDES 1
dc.contributor.author | Karwan, Diana L. | en_US |
dc.contributor.author | Allan, J. David. | en_US |
dc.contributor.author | Bergen, Kathleen M. | en_US |
dc.date.accessioned | 2010-06-01T18:49:09Z | |
dc.date.available | 2010-06-01T18:49:09Z | |
dc.date.issued | 2001-12 | en_US |
dc.identifier.citation | Karwan, Diana L.; Allan, J. David.; Bergen, Kathleen M. (2001). "CHANGING NEAR-STREAM LAND USE AND RWER CHANNEL MORPHOLOGY IN THE VENEZUELAN ANDES 1 ." JAWRA Journal of the American Water Resources Association 37(6): 1579-1587. <http://hdl.handle.net/2027.42/72014> | en_US |
dc.identifier.issn | 1093-474X | en_US |
dc.identifier.issn | 1752-1688 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/72014 | |
dc.description.abstract | The shape of a river channel is linked to surrounding land use through interacting hydrologic and geologic processes. This study analyzes the relationship between the change in near-stream land use and the shape of the adjacent river channel over time. Three watersheds in the foothills of the Venezuelan Andes that have experienced differing degrees of development were studied to determine river channel width, sinuosity, and position relative to surrounding land use. Change in land use over time was obtained from multiple-date aerial photographs (1946 and 1980) referenced to 1996 Landsat Thematic Mapper (TM) satellite imagery, and verified by field inspection. Measurements of land-use type and amount and river channel morphology from the two dates were made using geographic information system (GIS) methods. The three watersheds differed in the extent of deforestation, the location of remaining forested land, and how much land-use change had already occurred by 1946. Change in river channel morphology was greatest at the most deforested sites. Valley shape and channel constraint also had a discernible effect on change in channel morphology. This study introduces a method for analyzing change in coupled terrestrial-aquatic systems based on multiple-date, remotely sensed data and GIS analysis of spatial properties. The results document human impacts on river channels through a comparison of multiple watersheds over a 35-year time interval. | en_US |
dc.format.extent | 191657 bytes | |
dc.format.extent | 3109 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | 2001 American Water Resources Association | en_US |
dc.subject.other | Aerial Photography | en_US |
dc.subject.other | Geographic Information Systems | en_US |
dc.subject.other | Remote Sensing | en_US |
dc.subject.other | Land-use Change | en_US |
dc.subject.other | Rivers | en_US |
dc.subject.other | Channel Morphology | en_US |
dc.subject.other | Riparian | en_US |
dc.subject.other | Watershed | en_US |
dc.title | CHANGING NEAR-STREAM LAND USE AND RWER CHANNEL MORPHOLOGY IN THE VENEZUELAN ANDES 1 | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Natural Resources and Environment | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Respectively, Recent Graduate, School of Natural Resources and Environment, University of Michigan-Ann Arbor, 30789 Minton, Livonia, Michigan 48150; Professor, School of Natural Resources and Environment, University of Michigan, 430 East University, Ann Arbor, Michigan 48109–1115; and Assistant Research Scientist, School of Natural Resources and Environment, University of Michigan, 430 East University, Ann Arbor, Michigan 48109–1115 (E-Mail:Karwan: dkarwan@umich.edu ). | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/72014/1/j.1752-1688.2001.tb03661.x.pdf | |
dc.identifier.doi | 10.1111/j.1752-1688.2001.tb03661.x | en_US |
dc.identifier.source | JAWRA Journal of the American Water Resources Association | en_US |
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dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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