河口位于河流—海洋交互区，是一具有重大资源潜力和环境效益的湿地生态系统类型。
Estuary locates the intersecting zone between ocean and river, it is the wetland ecosystem type with great resources potent and environmental values.
河口和沿岸海域的富营养化问题已成为困扰世界沿海国家的主要环境问题之一，也是当前海洋生态环境科学研究的热点。
Estuarine and coastal eutrophication has been one of the primary environmental problems worrying the coastal countries, it is also the hotspot of the Marine ecological and environmental research.
河口和沿岸海域的富营养化问题已成为困扰世界沿海国家的主要环境问题之一，也是当前海洋生态环境科学研究的热点。
Estuarine and coastal eutrophication has been one of the primary environmental problems worrying the coastal countries, it is also the hotspot of the Marine ecological and environmental research.
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