中文摘要：

在水权交易中，第三方回流问题的存在使得水权交换市场的有效性受到了质疑。本文从第三方回流的定义入手，比较详细地阐速了第三方回流问题在水权市场建立过程中的影响，同时介绍了国外一些第三方回流的测量方法和解决回流问题的经验。希望能够借此阐速第三方回流现象，对我国水市场建立有所裨益。

英文摘要：

In water right trade, the validity of water market is queried, due to the return - flows problem. This paper defines the “return flow” problem in first place, and then analyzes the impacts of return- flow on the process of water market. Furthermore, this paper reviews some methodologies used by various cities to estimate return flow. Moreover it introduces some experiences d different countries to solve the problem. The purpose of the paper is to explain return flow probleem and do some favor for the establishment of water market in China.