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作 者:邓振华[1,2] 张晶[1,2] 于明洋[3] 徐秋晓
机构地区:[1]三维信息获取与应用教育部重点实验室,北京100048 [2]资源环境与地理信息系统北京市重点实验室,首都师范大学资源环境与旅游学院,北京100048 [3]山东建筑大学,济南250101 [4]山东省地矿局,济南250013
出 处:《首都师范大学学报(自然科学版)》2010年第1期69-73,79,共6页Journal of Capital Normal University:Natural Science Edition
摘 要:土地覆盖/利用作为地表的主要景观标志,其变化对人类的生产生活有着重要的影响,因此,研究地表覆盖的变化有着重要的意义.近年来,随着遥感技术和地理信息系统的发展,为研究土地覆盖/利用的变化提供了更好的方法和手段.本文选用济南市1995年TM和2003年ETM+两期遥感影像,利用ERDAS软件中图像处理模块及计算机解译模块,分别提取两期影像中的建筑用地、耕地、林地及未利用地;然后使用ERDAS建模模块统计出济南南部山区土地利用面积变化表及转移矩阵表,并得出地学信息图谱.根据地学信息图谱和转移矩阵来监测分析济南南部山区的土地利用时空变化,明确了其变化的主要类型和转移方向,即在1995-2003年间,济南南部山区的土地利用变化主要表现为耕地的不断减少、建筑用地持续增长,其主要流向是从耕地流向建筑用地.Land cover/use is the main landscape surface markers, and its changes have an important impact in the production and human life, so study on the changes in land cover has an important significance. In recent years, with the development of remote sensing technology and geographic information systems, the better ways and means were provided in the research of land cover/use change. In this paper, the TM remote sensing image in 1995 and ETM + in 2003 of the south mountain of Jinan were used to extract construction land, farmland, forest and unused land by using function of data processing and module of computer interpretation in ERDAS, and then calculated out the areas of land use changes and transfer matrixes in the south mountain of Jinan used the module of Modeler in ERDAS, and got the Geo-information tupu. The spatio-temporal change of land use in south mountain of Jinan were monitored and analyzed according to the Geo-information tupu, making clear its main types and transfer direction. The result is that the farmland decreases gradually and the construction land grows sustainably between 1995- 2003, and the main flow direction is from the farmland to construction land.
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