洞庭湖生态经济区湿地资源空间分布与依赖度研究

Spatial Distribution and Dependency Degree of Wetland Resources in Dongting Lake Ecological-Economic Zone

基于湖南省洞庭湖生态经济区25个县区2011年的统计数据和农户调查数据,利用主成分分析法、聚类分析法和线性加权平均法等,研究了该区湿地资源的空间分布与依赖度。结果表明:湖周湿地资源对县域经济发展有明显的贡献;根据湿地资源禀赋和利用强度,将生态经济区划分为三类区域,较好地反映了资源禀赋、资源依赖与地方发展的对应关系;对第Ⅰ类区域中渔民资源依赖度的评价表明,渔民上岸政策有效减轻了湿地压力,但生计保障措施较为有限,需以当地政府为治理主体,进一步完善相关政策细节,协调资源利用与生态保护的关系,促进生态经济区协调有序发展。

Based on 2011 ＇ s statistic data at county level as well as rural household survey data, and combined with someconventional research methods including Principal Component Analysis （PCA）, cluster analysis＂ and linear weightedaverage method, the paper analyzed the spatial distribution and dependency degree of wetland resources in DongtingLake Ecological-Economic Zone in Hunan Province. The results indicated that wetland resources around the lakecontributed a lot to county economy. The spatial distribution results of wetland resources nicely reflected thecorresponding relationships among resources endowment, use and local development. In addition, the appraisal ofresources dependency degree for fishermen suggested that the policy implemented in early 2009 concerning helpingfisherman settle ashore, had effectively alleviated pressure on wetland; however, the policy were not good enough forfishermen＇ s alternative livelihoods, which had offset part of the policy effect. Thus it＇ s necessary to further improverelevant policy details on the basis of local govemments＇ guidance for coordinated development of the whole region.