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于1988-1991年,对长江三角洲附近沿海潮滩和湿地进行较全面的调查,利用高程-面积法、沉积速率法,井引进未来冲淤趋势参数,对全区14个典型潮滩断面进行海平面上升影响的估算。结果表明,当海平面上升0.5m和1.0m时,全区潮滩面积分别比1990年的减少9.2%和16.7%;湿地面积减少20%和28%,并发生高级类型向低级类型的逆向演替。各岸段损失率相差悬殊,以侵岸段较大,淤涨岸段将减缓淤涨,甚至转为侵蚀。
From 1988 to 1991, a comprehensive survey of tidelands and wetlands in the coastal areas near the Yangtze River Delta was carried out. Based on the elevation-area method and sedimentation rate method, the future trend of sedimentation and sedimentation was introduced to conduct the analysis of 14 typical tidal flat sections in the region Estimate of the effect of a flat rise. The results show that when the sea level rises 0.5m and 1.0m, the area of tidal flat in the whole area decreases by 9.2% and 16.7% respectively compared with that in 1990; the wetland area decreases by 20% and 28% Type of reverse succession. Loss rates across the shore are disparities, with a larger section of the river, silting the shore section will slow down the siltation, or even turn to erosion.