针对大浪淀水库水环境恶化问题，阐述了生物调控技术修复水生生态系统的机理和方法。
The paper expounds the organism and methods of the amendment of aquatic ecosystem with biological control technique based on the deterioration of the Dalangdian Reservoir water environment.
第五章农田生态系统水环境损害成本的计量。
Chapter Five: Measurement about the water environmental damage cost from field ecosystem.
湿地生态系统水环境质量时空演化及其影响因素分析，是湿地理论和应用研究的热点领域。
The study on the spatiotemporal evolvement of wetland ecosystem water environmental quality and its related affecting factors is one of the hotspots in theoretical and applied wetland research.
目前，该项目的实施对当地改善城镇水环境、恢复水域生态系统已卓见成效。
Currently, the implementation of this engineering item improves the water environment of Dainan, and the instauration of water ecosystem is to be expected in confidence.
目前，该项目的实施对当地改善城镇水环境、恢复水域生态系统已卓见成效。
Currently, the implementation of this engineering item improves the water environment of Dainan, and the instauration of water ecosystem is to be expected in confidence.
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