The degradation of wetlands has caused regional environment and climate problems in the Sanjiang Plain. To provide a reference for wetland protection and restoration, two artificial water replenishment schemes were designed and four indicators—water quantity, ammonia nitrogen, total nitrogen and total phosphorus—were chosen to analyse results simulated by an environmental fluid dynamics code model. Simulation results showed that the wetlands receive a suitable amount of water and reach a normal water elevation, and the concentration of most water quality indicators decreased. In addition, a fuzzy analytic hierarchy process was used to select the four indicators and 30 different combinations were designed. Following the fuzzy calculation, the comprehensive scores of 29 combinations showed that a scheme involving multiple replenishments is better than a scheme of a single replenishment. This study indicates that an effective method for restoring wetlands near or surrounding irrigation areas is rational allocation of water resources.

中文翻译：

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人工补水恢复湿地的研究

湿地退化造成了三江平原的区域环境和气候问题。为为湿地保护与恢复提供参考，设计了两种人工补水方案，选取水量、氨氮、总氮、总磷4个指标，对环境流体动力学代码模型模拟结果进行分析。模拟结果表明，湿地得到适量的水，达到正常水位，大部分水质指标浓度下降。此外，采用模糊层次分析法对四个指标进行选择，设计了30种不同的组合。经过模糊计算，29个组合的综合得分表明，多补方案优于单补方案。研究表明，灌溉区附近或周边湿地恢复的有效方法是合理配置水资源。