中文摘要：

基于典型红壤侵蚀区——福建长汀县1988、2000和2007年遥感影像和数字高程模型,获取侵蚀景观类型数据,并利用空间数学模型分析了1988—2007年研究区侵蚀景观格局的变化.结果表明：1988—2007年,研究区不同强度的侵蚀景观类型具有互相转移的特点,主要表现为由侵蚀强度较重的景观向侵蚀强度较轻的景观转移,同时存在少量侵蚀强度较轻景观向侵蚀强度较重景观转移的情形,研究区侵蚀景观空间质心的变化不大,河田镇一直是研究区侵蚀核心区域;研究期间,景观水平的景观格局指数变化反映出研究区景观的低异质性、低破碎化和规则化趋势;斑块水平的景观格局指数变化反映出低侵蚀强度、易治理的斑块整体好转,且合并变大,而高侵蚀强度、难治理的斑块则局部好转而破碎化.

英文摘要：

Based on the 1988,2000,and 2007 remote sensing images of a typical red soil eroded region（Changting County,Fujian Province） and the digital elevation model（DEM）,the eroded landscape types were worked out,and the changes of the eroded landscape pattern in the region from 1988 to 2007 were analyzed with the spatial mathematics model.In 1988-2007,different eroded landscape types in the region had the characteristics of inter-transfer,mainly manifested in the transfer from seriously eroded to lightly eroded types but still existed small amount of the transference from lightly eroded to seriously eroded types.Little change was observed in the controid of the eroded landscape.In the County,Hetian Town was all along the eroded center.During the study period,the landscape pattern index showed a tendency of low heterogeneity,low fragmentation,and high regularization at landscape level,but an overall improvement and expansion of lightly eroded and easy-to-tackle patches as well as the partial improvement and fragmentation of seriously eroded and difficult-to-tackle patches at patch level.