不同喀斯特区域土地覆被及其景观格局变化特征——以贵州省安顺市为例  

Characteristics of change of land cover and landscape pattern in different karst region——A case study in Anshun county of Guizhou province

作　　者：王罗娟 安裕伦[1,2] 许璟[1,2] 马士彬[1,2,3] 安宏锋 

机构地区：[1]贵州师范大学地理与环境科学学院,贵州贵阳550001 [2]贵州省山地资源与环境遥感应用重点实验室,贵州贵阳550001 [3]贵州省六盘水师范学院环境与资源科学系,贵州六盘水553004 [4]贵州省环境监测中心站,贵州贵阳550081

出　　处：《贵州师范大学学报（自然科学版）》2016年第4期23-31,共9页Journal of Guizhou Normal University：Natural Sciences

基　　金：国家自然科学基金项目(41161002);全国生态环境十年(2000-2010)变化遥感调查与评估贵州专题项目(2012-2013);贵州省省长基金项目(黔省专合字(2011)46号);贵州省教育厅自然科学研究项目(黔教合KY字[2013]173)

摘　　要：为对比分析安顺市这一高密度人口活动地区的亚喀斯特与纯喀斯特地区的土地覆被方面的景观格局变化的不同,以2000年、2005年、2010年3期TM影像为基础数据,采用土地覆被与景观格局变化相结合的研究方法,对贵州省安顺市地区的亚喀斯特区域和纯喀斯特区域做对比分析,探讨亚喀斯特与纯喀斯特土地覆被类型转移和景观格局特征的区别。研究主要发现:1)安顺市主要土地覆被类型转移表现为耕地向草地、林地转变,表明区内整体生态状况趋于良好,亚喀斯特区域的草地、林地增长恢复显著,草地的增长率有17.75%,林地的增长率达到6.58%,与纯喀斯特地区的增长率对比说明亚喀斯特区域具有更好的良好的生态适宜性;2)景观格局指数显示区内景观异质性增强,优势度降低,相关指数亚喀斯特区域较纯喀斯特区域表现更为显著;3)亚喀斯特区域具有较纯喀斯特区域良好的生态适宜性,正是因为这一优势,受到更多的人为干扰,然而它本质上属于喀斯特的这一事实不容忽视,所以在合理利用区域资源的同时要重视保护。In order to compare and analyze the differences of landscape pattern in the semi- karst and pure karst region in the area of high density population activity in Anshun County,based on 2000,2005,2010 TM remote sensing images,the paper makes a comparative study on the semi- karst and pure karst region of Anshun of Guizhou Province and explores the differeces such as transfer of land cover,landscape pattern by using the changes of land cover and landscape research methods. The results showed that the main structure changes of landscape were the farmland transfer to grassland and forest,which indicates that the study area goes towards good ecological status as a whole. The growth and recovery of grassland,forest has resumed significantly in Semi- karst region,and the grassland growth rate of 17. 75%,the forest growth rate reached 6. 58%,compared the Karst region has better good ecological suitability in semi- karst region; landscape pattern index showed fragmentation index increase,and landscape dominance index decrease and correlation index in semi- karst region is more obvious than pure karst region. It is because semi- karst region has a good ecological suitability than pure karst region that semi- karst region is subjected to more human intervention. However,it essentially belongs to karst this fact cannot be ignored,so we should use of regional resources reasonably at the same time to attach great importance to the protection.

关 键 词：土地覆被 景观格局 亚喀斯特 纯喀斯特 

分 类 号：F301.24[经济管理—产业经济]