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作 者:周湘山[1] 孙保平[1] 李锦荣[1] 赵岩[1] 钟晓娟[1] 王引乾[1] 冯磊[1] 邱一丹[1]
机构地区:[1]北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室,北京100083
出 处:《四川农业大学学报》2011年第3期346-352,共7页Journal of Sichuan Agricultural University
基 金:国家林业局林业公益性行业科研专项经费项目--南方退耕还林工程建设效益监测评价研究(201004018)
摘 要:本文以内蒙古退耕还林典型县卓资县为研究对象,根据1999年和2007年2期TM影像资料和其他辅助资料,分析了卓资县土地利用变化、区域差异特征和各类型之间的转化情况,并利用马尔可夫模型对2015年土地利用动态变化趋势进行预测研究。结果表明:内蒙古卓资县1999-2007年,因为退耕还林工程的实施,林地和草地的面积有较大幅度增加;耕地和水域面积有较大幅度降低,可以看出林地,草地和耕地是本地区土地利用变化的主导类型,与其他土地利用类型间的相互转化较广。到2015年草地持续增加,林地和耕地面积降低;林地,草地和耕地始终为主要的转化类型,占据主导地位,因此合理利用与保护该区的耕地、林地和草地资源,是该区生态环境建设的必要途径。Taking Zhuozi county the typical county of returning farmland to forest in Inner Mongolia as the research object,according to the TM images and other auxiliary materials of the two periods in 1999 and 2007,this paper analyzed the change of land use,regional difference and transformation between various types,and used markov model to predict the dynamic changing trend of the land use in 2015.The results showed that in the Zhuozi county of Inner Mongolia in the period of 1999-2007,due to the implementation of the project of returning farmland to forest,the area of forest land and grassland was greatly increased respectively,while the area of cultivated land and waters was greatly reduced respectively.Accordingly,it can be said that the cultivated land,forest land and grassland were the dominant types of land use change in this area,and they had widely mutual transformation with other types of land use.By 2015,the area of grassland will be increased continuously,while that of the forest land and cultivated land will be reduced.Forest land,cultivated land and grassland are always the dominant types of land use and transformation.Therefore,reasonable use and protection of the forest land,grassland and cultivated land resources are the necessary ways to construct the ecological environment in Zhuozi County.
关 键 词:遥感 卓资县 土地利用/植被覆盖变化 马尔科夫矩阵
分 类 号:TP79[自动化与计算机技术—检测技术与自动化装置]
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