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中文摘要：
打网岗位于渤海西北岸，濒x临京唐港，是滦河早期建造的沙坝。滦河改道北移之后，由于陆源泥沙减少以及京唐港防波堤的拦沙作用，打网岗侵蚀后退严重。利用多年岸滩监测资料、多期航卫片解译数据以及历史资料，研究表明：1987--2009年间岸滩年均侵蚀速率为-0．61～-5．30m／a，东北端濒临港口防沙堤下游处侵蚀量最大，西南端人为固化稳定；同时依据不同岸段侵蚀程度的差异性，提出了打网岗岸滩生态修复方案。
英文摘要：
Dawanggang, occurring as a sand bar （built up by the Luanhe River in the past time） adja- cent to the Jing-Tang harbor, is located on the northwestern coast of the Bohai Sea. Since the Luanhe River changed its course to the north and also because of the construction of the Jing-Tang harbor wave dam to prevent sand accumulation, continental silt supply to the sand bar from the river has de- creased and as a result, Dawanggang has been severely eroded and retreated. The authors use yearly beach monitoring data, multi-period aero-satellite pictutes interpretations and previous information to give a conclusion that mean annual erosion rate of the Dawanggang beach was --0.61-- 5.30 m/a during the period of 1987-2009, and the erosion rate was the largest at the northeast end of Dawang- gang adjacent to the wave dam of the Jing-Tang harbor, but the southwest end was stable due to arti- ficial solidification. The authors also worked out a plan for ecologic reconstruction of the Dawanggang beach according to differences of erosion at different beach sections.
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