本幻灯片演示概述了一个试点项目，以演示 缓解风险的最佳管理实践 沉积物和从河流到路易斯维尔湖的负载 山核桃溪流域。第二个目标是 为发展创造经济激励 水质信用交易对控制点的影响 以及通过使用 市政发展法规。刘易斯维尔湖目前正在开发中 受到沉积物和沉积物的威胁 是的 #德克萨斯州102座水库中有96座 对于富营养化，有 高申请率 新的或修订的解雇 许可证， 土地利用快速转换， 存储容量减少了 泥沙量， 主要供水水库，以及 重要的娱乐资源。 概述的主题包括:水质信用交易；SWAT模型校准 路易斯维尔湖土地用途；应用 流域框架；形式评估 泥沙控制成本；模型开发——城市负荷、沉积物校准、氮；土地利用的变化 自然条件；增加的负荷 由于发展；适用于城市法规；以及在供水规划中的应用。

This slide presentation outlines a pilot program to demonstrate the use of best management practices for the mitigation of sediment and loading to Lake Lewisville from the Hickory Creek Watershed. A second objective was to create economic incentives for the development of water quality credit trading to control of point and nonpoint source pollution through the use of municipal development code. Lake Lewisville is currently threatened by sediment and nutrients, it is #96 out of 102 Texas reservoirs for eutrophication, there are a high rate of applications for new or amended discharge permits, rapid land use conversion, storage capacity reduced by sediment loads, major water supply reservoir, and significant recreation resource. Topics outlined include: water quality credit trading; SWAT model calibrated for Lake Lewisville land uses; application of the watershed framework; pro forma evaluation of sediment control costs; model development - urban loads, sediment calibration, nitrogen; change in land use from natural conditions; increased loads due to development; application to city code; and, application to water supply planning.