Due to excessive utilization and unreasonable protection, water has been polluted severely, ecosystem has been changed, ecological function has been decayed gradually in the Sanyang wetland.
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The ecosystem of the source area of the Yellow River, taking the hydrologic and the water resources regimes as the basic indexes, has been changed remarkably during the recent years.
以水文水资源情势为核心的黄河源区环境生态系统近年发生了显著变化。
The structure and function of the coastal wetland ecosystem in southern Laizhou Bay has been changed greatly and influenced by regional hydrological changes.
水文环境变化能影响滨海湿地生态系统的结构和功能。
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