中文摘要：

水生态环境遭到不同程度的破坏,流域健康状况越来越受到重视。水基系统的提出为流域健康评价提供了新的理论框架。现以挠力河流域为研究基点,根据其国家农产品主产区的特点,在水基系统的理论框架下,研究了适合该流域的健康评价等级标准,并依据指标选取5项原则、流域的自然经济状况构建了挠力河流域的水基系统健康评价指标体系。筛选了以农业生产和可持续发展为主导的评价指标集,分析了特定指标对该研究区域的适用性。所建立水基系统健康评价体系和指标集可为挠力流域的可持续发展提供技术支持。

英文摘要：

Recently,increasing importance has been attached to the watershed conditions since water ecological environment is under different degrees of destruction.A water-based system is put forward as a new theoretical framework for the watershed health evaluation.An appropriate grade standard of watershed condition assessment for Naolihe catchment,which is the main agricultural production area,is built under the water-based system.Finally an evaluation index system of watershed condition of Naolihe catchment is created on the basis of five principles for indexes selecting and local natural economy situation.As a result,an index set,in which considering agricultural production and sustainable development,is established,and then the applicability of several particular indexes are analyzed in the study area.It can provide technical support for the sustainable development of Naolihe catchment by the health evaluation index system and the set.