对鸭绿江口湿地的土地利用状况进行景观分类,利用TM影像进行人机交互式判读解译,获得了该区域现状和丹东港规划完成后景观解译图,并开展了港口建设对湿地景观格局的影响及其生态效应的评估.结果表明,港口建设后,湿地景观面积几乎没有改变；除了建筑用地斑块数量增加外,其他斑块数量均减少,但变化不明显；湿地景观指数中,香农多样性指数(SHDI)和香农均匀度指数(SHEI)增加,优势度指数(D)和蔓延度(CONTAG)下降,平均斑块分维数(MPFD)几乎没有变化；这些变化表明,湿地的景观格局并没有发生明显变化,因而对生物多样性影响不明显.然而景观的生态服务功能结果显示,港口建设对湿地生态系统造成许多不可逆的影响,导致生态服务功能在一定程度上退化.%Based on the land use,the remote sensing image interpretation map of Yalvjiang wetland landscape before and after Dandong port project was obtained by human-machine interactive interpreting with TM image. The landscape pattern and ecological effect in project of Dandong port were evaluated. Results show that after the port project,the area of wetland will be constant,and the patrh number of different landscapes will decrease except the constructed lands. Based on the landscape metrics, SHDI and SHEI will increase,while D and CONTANG will decrease,and MPFD will be constant before and after port project. These results suggest that there are not significant variations on the landscape pattern of wetland by the impact of port project. However, the results of the ecosystem services of wetland will be declined for the impact of the port project.
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