摘要
喀斯特地区是我国生态脆弱区之一。近年来,随着西部大开发的不断深入,经济社会快速发展,城市化速度加快,研究其土地利用/覆盖时空变化,对该区域土地管理与城市规划具有重要意义。在RS和GIS技术的支持下,应用1986、1995和2000年三期TM影像以及2006年CBERS-01影像,得到贵阳市四期土地利用数据。从土地利用/覆盖变化速度和空间变化两方面对贵阳市城市化进程中的时空变化进行研究。结果表明:贵阳市土地利用/覆盖变化剧烈,主要有持续增加型,先增后减型,先减后增型。在整个研究期内,建设用地持续增加,各土地利用/覆盖类型重心变化呈现出此消彼长的态势。除主城区建设用地面积有较大增加外,各郊区城镇建设亦得到较大发展。城区与郊区间的土地利用/覆盖类型变化存在差异。
Karst area is one of ecological fragile regions, in which economy and society are relatively backward. In recent years, with the deepening of the western China development, rapid economic and social development, and ac- celerating the pace of urbanization, studying the temporal and spatial variation of land use and cover is of great sig- nificance to the land management and urban planning in Karst area. Based on RS ＆ GIS, the land use data of Guiy- ang were obtained from TM images of 1986,1995 and 2000 years, as well as CBERS-01 of 2006 year. Temporal and spatial variation in the course of urbanization in Guiyang was studied from two aspects, which were changing speed and spatial variation of land use and cover. The results showed that land use and cover change violently in study ar- ea with continuous increasing. Construction land was increased continuously during the whole study period. The gravity center shift of land use and cover type showed the trade-off trend. The urban construction developed rapidly in main urban area. LUCC are different between urban area and suburb.
出处
《贵州科学》
2016年第3期46-52,共7页
Guizhou Science
基金
贵州省国土资源厅2014年财政专项资金项目
贵州省科学技术基金(黔科合J字[2007]2154号)
关键词
时空变化
土地利用/覆盖
城市化
喀斯特
贵阳市
temporal and spatial variation
land use and cover
urbanization
karst
Guiyang
