基于高程约束的区域LUCC及其生态效应研究——以福州市为例  

Regional LUCC and Its Ecological Effect Based on Elevation Constraint:A Case Study of Fuzhou City

作　　者：李名勇[1,2] 晏路明[3] 王丽丽[1] 林志垒[3] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101 [2]中国科学院研究生院,北京100049 [3]福建师范大学地理科学学院,福建福州350007

出　　处：《地理科学》2013年第1期75-82,共8页Scientia Geographica Sinica

基　　金：国家重点基础研究发展计划(2009CB421307);国家社会科学基金项目(03BTJ004);福建省自然科学基金项目(2011J01265)资助

摘　　要：以福州市5区7县(不包括平潭县)为研究区,以1994-2006年间3期遥感影像解译分类获得的土地利用/覆被数据为基础,并构建个性化的生态系统服务价值与生态效应测算模型,对研究区高程约束下的土地利用/覆被变化(LUCC)及其生态效应进行分析。研究结果表明:①耕地、建设用地和未利用地的变化集中于第1级,园地的变化集中于第4、5级,水域和草地的变化集中于第3、2级,林地的变化集中于第1、3、4级。②各高程等级的生态系统服务价值量均增加。各高程等级LUCC的生态效应指数与模数大致随高程等级增加而减小。Land use and land cover change（LUCC） has become a critical field of land change science（LCS） in the study of global environmental change.Based on the remotely sensed data of land use change with a spatial resolution of 30 m × 30 m in the five sub-regions and seven counties of Fuzhou City in the years of 1994,2001 and 2006,a improved models for evaluating ecosystem services value and ecological effect of LUCC was designed by introducing the value coefficient of food yield for regional farmland per unit area and the payment coefficient of regional ecosystem services in order to analyze the characteristics of LUCC and its ecological effect under the constraint of elevations during 1994-2006,which were divided into five levels（-0.4-50 m, 50-100 m,100-200 m,200-500 m and 500-＋∞ m） ascending respectively.The results show that： 1） The distribution of different land use and cover types was quite distinct along elevation.Forest and garden land mainly distributed on the fourth and fifth level;cultivated,built-up and unused land on the first level;grassland on the third,fourth and fifth level;and water body on the first and second level.2） The areas of all land use and cover types showed rapid variation which appeared different characteristics under the altitude constraint in the period 1994-2006.Arable,unused and built-up area had changed sharply on the first level.The first two types decreased whereas the last one increased.The area of garden land increased significantly on the fourth and fifth level.Water body and grassland variation mainly distributed on the third and second level.The woodland change concentrated on the first,third and fourth level.3） The ecosystem services value had increased at all elevations in 1994-2006,which appeared some inconsistency in different periods.The increasing amount of ecosystem services value from large to small along elevation levels were the fifth,fourth,first,third and second levels respectively in the period 1994-2001 while those were the fifth,fourth,third

关 键 词：LUCC 高程约束 生态服务价值 生态效应 福州市 

分 类 号：F301.24[经济管理—产业经济]