基于遥感的抚州市土地利用变化及生态系统服务功能价值变化研究

基于1999年和2005年两期TM遥感数据,利用ERDAS8.5和Arcgis等平台进行数据处理,将抚州市土地利用类型分为耕地、林地、草地、水域、建设用地和未利用土地等6类,并得出了各地类的土地面积。然后,计算得出了研究区域内的生态系统服务功能价值并分析了其变化规律。结果表明,抚州市的土地利用变化明显,生态系统服务功能价值增幅较低且总量偏小,土地利用存在一定的结构问题,生态建设的力度还不够。着眼于政策、技术措施、资金和土地管理的综合视角,根据经济发展的实际,应合理调配用地结构,加大生态建设的力度,实现社会效益、经济效益和生态效益的同步提高。

Changes of Land Use and Ecosystem Services Value Based on Remote Sensing

Based on the TM data of Fuzhou city in 1999 and 2005, and analysis on the data processing platforms of ERDAS 8.5 and Arcgis, the classified land use type was divided into 6 kinds, i.e. cultivated lands, forestland, grassland, body of water, construction area and unused land, and land area was obtained around the classes. Then, the value of ecosystem services was calculated and the changes were analyzed. The results indicated that land use changed significantly in Fuzhou, but value of ecosystem services was lower increased and the increase amount was too small. Some structure problems of land use existed in Fuzhou, and the intensity of ecological construction was not enough. In the comprehensive view of policy, technique, fund and management, it is necessary to adopt the actual steps to regulate the land use structure, to enhance the intensity of ecological construction and to achieve harmonious development of social, economic and ecological effects.