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Water Resour Manage DOI 10.1007/s11269-010-9598-8 Simulation of Agricultural Management Alternatives for Watershed Protection (2009)
BibTeX
@MISC{Kannan09waterresour,
author = {Narayanan Kannan and Raghavan Srinivasan and Colleen G. Rossi and Jeffrey G. Arnold},
title = {Water Resour Manage DOI 10.1007/s11269-010-9598-8 Simulation of Agricultural Management Alternatives for Watershed Protection},
year = {2009}
}
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Abstract
Abstract The Bosque River Watershed in Texas is facing a suite of water quality issues including excess sediment, nutrient, and bacteria. The sources of the pollutants are improperly managed cropland and grazing land, dairy manure application, and effluent discharge from wastewater treatment facilities. Several best management practices (BMPs) have been proposed for pollution reduction and watershed protec-tion. The overall objectives of this study were to demonstrate a modeling approach using Soil and Water Assessment Tool (SWAT) model to simulate various BMPs and assess their long-term impacts on sediment and nutrient loads at different spatial levels. The SWAT model was calibrated and validated for long-term annual and monthly flows at Valley Mills and for monthly sediment, total nitrogen (TN) and total phosphorus (TP) at Hico and Valley Mills monitoring locations. The BMPs including streambank stabilization, gully plugs, recharge structures, conservation tillage, terraces, contour farming, manure incorporation, filter strips, and PL-566 reservoirs were simulated in the watershed areas that met the respective practice’s specific criteria for implementation. These BMPs were represented in the pre-
Keyphrases
s11269-010-9598-8 simulation agricultural management alternative water resour manage doi watershed protection management practice valley mill monitoring location overall objective swat model different spatial level monthly sediment long-term impact contour farming pollution reduction bosque river watershed dairy manure application streambank stabilization modeling approach watershed area wastewater treatment facility total nitrogen various bmps respective practice specific criterion excess sediment water assessment tool valley mill total phosphorus effluent discharge manure incorporation grazing land recharge structure water quality issue conservation tillage pl-566 reservoir nutrient load monthly flow
