黄河断流对河口地区生态环境的影响

在对黄河三角洲地区湿地形成机理分析的基础上，经进一步论证，认为黄河断流对湿地水环境的直接影响是相当微小的。根据黄河口及其附近海域鱼类资源的生物学特点和生态学特点的分析，认为在每年4～6月份鱼、虾产卵、孵化的高峰季节，由于黄河断流入海水量不足，会对鱼、虾产卵、孵化带来一定的不利影响。但对黄河口及其附近海域鱼类资源大幅度衰减的原因，还应结合近年的海洋捕捞业等方面进行综合分析。

INFLUENCE OF THE YELLOW RIVER ZERO FLOW ON ESTUARINE ECONOMIC ENVIRONMENT

Based on the analysis of the wetland formation mechanism in the Yellow River delta area,it is suggested that the direct influence of the Yellow River zero flow on wetland water environment is little. According to the analysis of the fish stocks biological and ecological features in the Yellow River mouth and its adjacent sea areas,it is suggested that the insufficient river outflow into the sea dwe to the Yellow River zero flow in the spawning and hatching seasons (April to June) will bring certain adverse impact to the fish and shrimp spawning and hatching,but the reason for the fish stocks in the area to greatly decline shall be analysed comprehensively together with the marine fishery conditions in the recent years.