【摘要】 利用Landsat TM和高精度ALOS影像数据,在比较不同水体指数提取海域面积精度的基础上,利用改进的归一化差异水体指数(MNDWI),研究了1988、1995和2006年锦州湾海域填海造地情况.结果表明:1988—2006年间,锦州湾海域填海造地面积达23.63 km2,其中,12.38 km2被用作开发区建设,5.48 km2用于工业用地,3.47 km2用于码头建设,1.37 km2被用作养殖用地,0.93 km2被用为滨海浴场.大面积填海造地反映了锦州湾沿海城市建设和经济发展对土地的强烈需求,同时也必然会对该区域的生态环境造成较大影响,需要进一步加强监测和评价.更多还原

【Abstract】 By using Landsat TM and high resolution ALOS images,and based on the comparison of the precision of sea area extracted from various water indices,a modified index MNDWI was adopted to study the shoal reclamation in Jinzhou Bay sea area in 1988,1995,and 2006.In the period 1988-2006,the reclaimed area in Jinzhou Bay sea area reached 23.63 km2,among which,12.38 km2,5.48 km2,3.47 km2,1.37 km2,and 0.93 km2 were used for development zone,industry,port construction,seawater aquaculture,and beach bathing,respectively.The large acreage shoal reclamation reflected the urgent demand of land for coastal urban construction and economic development along the Jinzhou Bay,while at the meantime,brought about greater impacts on the local eco-environment,which needed to be further monitored and assessed.更多还原