• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the American Water Resources Association >AN OPEN SOURCE GIS-BASED DECISION SUPPORT SYSTEM FOR WATERSHED EVALUATION OF BEST MANAGEMENT PRACTICES
【24h】

AN OPEN SOURCE GIS-BASED DECISION SUPPORT SYSTEM FOR WATERSHED EVALUATION OF BEST MANAGEMENT PRACTICES

机译：基于开源GIS的决策支持系统，用于最佳管理实践的流水评估

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Economic costs, water quantity/quality benefits, and cost effectiveness of agricultural best management practices (BMPs) at a watershed scale are increasingly examined using integrated economic-hydrologic models. However, these models are typically complex and not user-friendly for examining the effects of various BMP scenarios. In this study, an open source geographic information system (GIS)-based decision support system (DSS), named the watershed evaluation of BMPs (WEBs), was developed for creating BMP scenarios and simulating economic costs and water quantity/quality benefits at farm field, subbasin, and watershed scales. This DSS or WEBs interface integrated a farm economic model, the Soil and Water Assessment Tool (SWAT), and an optimization model within Whitebox Geospatial Analysis Tools (GAT), an open source GIS software. The DSS was applied to the 14.3-km(2) Gully Creek watershed, a coastal watershed in southern Ontario, Canada that drains directly into Lake Huron. BMPs that were evaluated included conservation tillage, nutrient management, cover crop, and water and sediment control basins. In addition to assessing economic costs, water quantity/quality benefits, and cost effectiveness of BMPs, the DSS can be also used to examine prioritized BMP types/locations and corresponding economic and water quantity/quality tradeoffs in the study watershed based on environmental targets or budget constraints. Further developments of the DSS including interface transfer to other watersheds are also discussed.
机译：使用综合的经济水文模型，越来越多地研究了在分水岭规模上的经济成本，水量/质量收益以及农业最佳管理实践（BMP）的成本效益。但是，这些模型通常很复杂，并且对检查各种BMP方案的影响不友好。在这项研究中，开发了一种基于开源地理信息系统（GIS）的决策支持系统（DSS），称为BMP（WEB）的分水岭评估，用于创建BMP方案并模拟农场的经济成本和水量/水质收益田间，子盆地和分水岭规模。该DSS或WEB界面在开放源GIS软件Whitebox Geospatial Analysis Tools（GAT）中集成了农场经济模型，土壤和水评估工具（SWAT）和优化模型。 DSS已应用于14.3 km（2）的Gully Creek流域，该流域是加拿大安大略省南部的沿海流域，该流域直接排入休伦湖。评估的BMP包括保护性耕作，养分管理，覆盖作物以及水和沉积物控制盆地。除了评估BMP的经济成本，水量/水质效益和成本效益外，DSS还可以用于根据环境目标或研究目标来研究流域中优先的BMP类型/位置以及相应的经济和水量/水质权衡。预算限制。还讨论了DSS的进一步开发，包括接口到其他流域的转移。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号