环胶州湾海岸带典型土地利用/覆盖类型SPOT-5影像解译标志

SPOT-5 Image Marks for Interpreting the Types of Land Use/Cover in the Coastal Zone of the Jiaozhou Bay

环胶州湾区域城市扩展迅速,土地利用变化剧烈,在该区域开展土地利用/覆盖研究具有重要意义。针对胶州湾区域特点和海岸带特色,遴选出基岩海岸、砾石海岸、砂质海岸、淤泥质海岸、果园、茶园、林地、盐田、养殖9种典型地物,根据现场踏勘资料和影像解译经验,从颜色、形状、纹理等方面建立了SPOT-5影像解译标志,并在此基础上开展了信息提取工作;通过现场验证,信息提取精度达到90%以上。

The research on the use/cover of land is very significant in the coastal zone of the Jiaozhou Bay where the city expands rapidly and the use of land changes acutely.In view of the regional characteristics and the unique coastal features,nine typical types of landscapes,which include rocky coast,gravelly coast,sandy coast,muddy coast,fruit orchards,tea gardens,woodlands,salt fields and breeding ponds,are selected from the coasal zone surrounding the Jiaozhou Bay.Based on the data from field survey and the experiences from image interpretation,SPOT-5 image marks used for interpreting the types of land use/cover have been established,which include the marks in color,shape and texture,and then the extraction of information about land use/cover have been carried out.According to the in-situ validation,the accuracy of the information extraction can be up to 90%.