洪湖市土地利用动态及生态服务价值响应研究  

Research on Response of Ecosystem Service Values to Land Use Dynamics in Honghu Conuty

作　　者：严恩萍[1] 林辉[1] 洪奕丰[2] 查东平[1] 

机构地区：[1]中南林业科技大学林业遥感信息工程研究中心,湖南长沙410004 [2]国家林业局华东森林资源监测中心,浙江杭州310019

出　　处：《土壤通报》2013年第5期1053-1059,共7页Chinese Journal of Soil Science

基　　金：国家863课题(2012AA102001-4);国家自然科学基金资助项目(31100412)资助

摘　　要：土地利用是影响区域生态系统功能的重要因素。研究以湖北省洪湖市的TM遥感影像为信息源，通过目视交互解译获得1989～2010年间的土地利用现状，结合土地利用结构和城市化指数，定量分析土地利用演变引起的生态服务价值变化。结果显示：1989—2010年，洪湖市生态服务价值主要由湿地、水域和耕地支撑，由1989年的36．77亿元增加到2010年的37．92亿元；洪湖市生态服务功能以水文调节、废物处理、气候调节、维持生物多样性为主，贡献率达73．78％～74．30%；洪湖市土地利用结构指数均与生态服务价值相关，其中土地利用多样性、均匀度和强度增加，而优势度下降；城市化对洪湖市生态服务价值正效应明显。研究表明，依据生态服务功能现状，制定合理的生态规划，是维持洪湖市生态系统功能的有效措施。Land use is one of the most important factors to regional ecosystem function. The study was carried out at Honghu County, Hubei Province, P. R. China. Based on the TM images and visual interactive interpretation, land use status of Honghu County （1989 - 2010） were acquired for quantitatively analyzing the responses of the ecosystem service values to land use change with the association of land use structure and urbanization indices. The results showed that ecosystem service values of Honghu County （1989 - 2010） were mainly supported by wetlands, waters and farmlands, which increased from 3.677 billion Yuan in 1989 to 3.697 billion Yuan in 2010. The dominant ecosystem service functions of Honghu county were hydrological regulation, waste management, climate regulation and biodiversity maintenance with a contribution rate from 73.78% to 74.30%. Land use structure indices of Honghu County were all linearly associated with ecosystem service values, whose diversity, evenness and strength increase while decline in dominance. Urbanization has a positive effect on ecosystem service values, which shows the increase of ecosystem service values was related with urbanization. We could conclude that it is an effective way to maintain Honghu County ecosystem service functions by making rational ecological planning according to the status of ecosystem service functions.

关 键 词：生态服务价值 土地利用结构 城市化 LandsatTM 洪湖市 

分 类 号：S151.1[农业科学—土壤学]