南阳市土地生态承载力评价研究  

Assessment of Carrying Capacity of Land Eco-environment in Nanyang City

作　　者：常秋玲[1] 田惠娟[2] 

机构地区：[1]河南省国土资源科学研究院,河南郑州450053 [2]河南省煤田地质局二队,河南洛阳471000

出　　处：《江西农业学报》2008年第3期80-84,共5页Acta Agriculturae Jiangxi

摘　　要：在系统分析南阳市土地生态系统的影响因子基础上,构建了研究区土地生态脆弱性评价指标体系。将生态环境因子划分为生态系统、人类生存安全度与生态经济三大类。整个评价体系包含9项Ⅰ级指标和32项Ⅱ级指标。德尔菲法、层次分析法和综合指数法相结合进行南阳市土地生态脆弱性评价结果表明:该市土地生态系统处在一个中度脆弱的平衡阶段,如果不改变传统的土地利用方式,生态环境的相对平衡将被打破,生态环境承载力将会大大降低。The index system of ecological vulnerability assessment was constructed in the study after systematically analyzing the influential factors on land ecological system in Nanyang city.The ecological environment factors were divided into ecosystem,human life safety degree and eco-economy.The assessment system was made up of 9 first indexes and 32 second indexes.At last Delphi method,AHP method and comprehensive index method were used to evaluate the ecological vulnerability in Nanyang city.The results showed that the land ecological environment was in balance status with moderate ecological vulnerability,if the traditional land usage would not change,the balance of ecological environment would be broken and the carrying capacity of land eco-environment would be declined.

关 键 词：生态环境脆弱性 生态环境承载力 土地生态系统 南阳市 

分 类 号：F323.211[经济管理—产业经济]