评价工作的目标及其任务与流域管理效果同样重要。大部分反映成效评价的文件都是在项目结束时才完成,但这样往往太迟了。在项目实施阶段,由于没有收集到有效信息,很难确定其绩效是否和预期效果一致。基于合适的设计及数据收集方式,项目评价应当贯彻于整个流域管理工作的始终。 The objectives and tasks of the evaluation are as important as the effectiveness of watershed management. Most of the documents that reflect performance reviews are completed at the end of the project, but often too late. In the project implementation phase, because no effective information was collected, it is difficult to determine whether its performance is consistent with the expected result. Based on appropriate design and data collection methods, project evaluation should be carried out throughout the entire basin management.