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(Article of periodic en Anglais - 2011)

Document title

Impacts of conservation buffers and grasslands on total phosphorous loads using hydrological modeling and remote sensing techniques

Authors(s) and Affiliation(s)

LAROSE M. (1) ; HEATHMAN G.C. (2) ; NORTON D. (2) ; SMITH D. (2) ;
(1) School of Natural Resources, Univ. of Michigan, Ann Arbor, ETATS-UNIS
(2) National Soil Erosion Research Lab., USDA-ARS, West Lafayette, ETATS-UNIS

Abstract

A methodology was developed using the object-based image analysis approach with Landsat-5 TM imagery of the year 2005 and thematic layers of streams to quantify conservation buffers and grasslands (OBIA-2005). The OBIA-2005 land cover data was used in the Soil and Water Assessment Tool hydrologic model to assess the impacts of vegetative conservation practices on total phosphorus (TP) loads. The model was calibrated and validated for discharge and TP loads in the Cedar Creek Watershed (CCW) in northeast Indiana. The combination with the width of edge-of-field buffer strips module of the SWAT model achieved the largest TP loads reduction. These findings demonstrate that improved representation of vegetative conservation practices in geospatial land cover data sets are more effective in assessing the impacts of conservation buffers and grasslands on water quality through hydrologic modeling

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2011, vol. 86, no2 [pp. 121-129]

Bibliographic references : 43 ref.

Collation : 8 fig., 6 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.03.005

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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