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利用历史资料和Landsat TM卫星遥感图像,采用目视判读与实地验证相结合的方法,研究了鸭绿江河口湿地1983年、1995年和2007年的格局变化,揭示了其结构演变。研究结果表明:1983年至2007年间,鸭绿江口湿地总面积有所增加,其中湿地结构发生较大变化,自然湿地面积以4.16km2/年速度显著减少,而人工湿地面积以23.43km2/年速度大幅增加;湿地主要的增加来源是水稻田和养殖场,主要下降湿地类型为滩涂和芦苇;人类工农业生产活动是鸭绿江河口自然湿地面积减少的主要原因,总体上导致湿地生物生存空间减少,湿地自身生态功能不断退化。
Using historical data and Landsat TM satellite remote sensing images, a visual interpretation and a field verification method were combined to study the pattern changes of the Yalu River Estuary wetlands in 1983, 1995 and 2007, revealing the structural evolution. The results show that the total area of wetlands in Yalu River estuary increased from 1983 to 2007, of which wetland structure changed greatly, the area of natural wetlands decreased significantly at 4.16km2 / year, while that of constructed wetlands increased significantly at 23.43km2 / year The main sources of wetland increase are paddy fields and farms, with the main types of wetlands being tidal flat and reed. Human and agricultural production is the main reason for the decrease of natural wetland area in the Yalu River Estuary. As a result, the living space of wetlands is reduced, Ecological functions continue to deteriorate.