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首页> 外文会议>Annual International Meeting of the American Society of Agricultural and Biological Engineers >Conservation Effects Assessment Using SWAT in Cheney Lake Watershed CEAP South-central Kansas
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Conservation Effects Assessment Using SWAT in Cheney Lake Watershed CEAP South-central Kansas

机译：使用Swat在Cheney Lake Soutershed Ceap South-Central Kansas中的保护效应评估

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Several best management practices (BMPs) have been implemented to protect and improve water quality benefits in the Cheney Lake watershed (CLW). Although, implementation of BMPs has been documented in the CLW, quantification of spatially varied waterquality benefits over the time is limited. The objectives of this study were to evaluate effectiveness of BMPs (agricultural waste, repair failing septic systems, and conservation reserve program - CRP) implemented in the CLW (1995-2006) to reduce flow,sediment yield, and total phosphorus transport to the various reaches of the CLW using Soil and Water Assessment Tool (SWAT). The SWAT model confirmed a results of good to fair correlation and agreement (R2 = 0.57-0.61, NSE = 0.35-0.54) for flow, sediment yield, and total phosphorus when verified at North Fork of Ninnescah using monthly USGS data. Model results demonstrated that agricultural waste and repair failing septic systems BMPs reduced total phosphorus loss by 1 to 6 %, depending on spatial andtemporal variability of the selected watershed reach. Increasing the CRP land by only 4.7 % reduced monthly flow (1.8 to 2 %), sediment yield (3 to 13 %), and total phosphorus (5.3 to 10.3 %). Of the three BMPs evaluated, conversion of crop land to CRP was the most effective for reduction of sediment and total phosphorus loads in the watershed. The SWAT model successfully evaluated historical BMPs implementation in this watershed.
机译：已经实施了几种最佳管理实践（BMP），以保护和提高切利湖流域（CLW）的水质益处。虽然，在CLW中已经记录了BMP的实施，但随着时间的推移，空间变化的水分效益的量化是有限的。本研究的目标是评估在CLW（1995-2006）中实施的BMPS（农业废物，修理，腐败系统和保护储备计划 - CRP）的有效性，以减少流量，沉积物产量和全部磷运输到各种各样的使用土壤和水评估工具（SWAT）到达CLW。 SWAT模型确认了公允相关和协议（R2 = 0.57-0.61，NSE = 0.35-0.54）的良好的结果，用于流动，沉积物产量和全磷，当时使用每月USGS数据验证Ninnescah的北叉子。模型结果表明，农业废物和修复失败，脓毒系统BMP减少了1％至6％的总磷损失，具体取决于所选流域达到的空间和血流变异性。将CRP土地增加4.7％，每月流量减少（1.8〜2％），沉积物产量（3至13％），总磷（5.3至10.3％）。在评估的三种BMPS中，作物土地转化为CRP是减少分水岭中沉积物和总磷荷载最有效的。 SWAT模型在本分水岭中成功评估了历史BMPS实施。

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