贵州省北盘江流域经济贫困与生态脆弱性的空间耦合关系研究

Spatial coupling relationship between economic poverty and ecological vulnerability in Beipanjiang River Basin,Guizhou Province

为研究北盘江流域经济贫困与生态环境之间的空间耦合关系,揭示其空间格局,基于遥感数据及统计资料,构建北盘江流域乡镇单元的经济贫困与生态脆弱性的评价体系,采用耦合协调度模型,对经济贫困与生态脆弱性的空间格局及耦合特征进行综合分析。结果表明:1)研究区中度贫困以上的乡镇占全部乡镇的40.54%,贫困程度较重的乡镇主要分布于东南部、中部及六盘水一带的西北部地区,有一定聚集性。2)生态脆弱性等级空间分布差异明显,由东至西生态脆弱程度愈加严重。中度以上脆弱性的乡镇仅占全部乡镇的30.41%,生态脆弱程度处于偏低水平,各类型分布具有明显的集中性。3)耦合协调类型占全部乡镇的83.24%,处于优良的耦合协调状态,耦合协调差异类型分布连片且集中,失调差异类型主要分布于研究区东部。研究可为区域经济发展与环境改善提供一定理论支持,为区域可持续发展提供科学参考。

In order to study the spatial coupling relationship between economic poverty and ecological environment in Beipanjiang River Basin and reveal its spatial pattern,based on remote sensing data and statistical data,the evaluation system of economic poverty and ecological vulnerability of township units in Beipanjiang River Basin is constructed.The spatial pattern and coupling characteristics of economic poverty and ecological vulnerability are comprehensively analyzed by using the coupling coordination degree model.The results show that:1)The villages and towns with moderate poverty account for 40.54%of the total villages and towns in the study area.The villages and towns with severe poverty are mainly distributed in the southeast,the middle of the study area and the northwest of Liupanshui.2)The spatial distribution of ecological vulnerability is obviously different,and the degree of ecological vulnerability becomes more and more serious from east to west.The villages and towns with moderate or above vulnerability only account for 30.41%of the total villages and towns,and the ecological vulnerability is at a low level.The distribution of various types has obvious concentration.3)The type of coupling and coordination accounts for 83.24%of the whole township,which is in a good state of coupling and coordination.The types of coupling coordination differences are distributed contiguously and intensively,and the types of maladjustment differences are mainly distributed in the eastern part of the study area.The research can provide some theoretical support for regional economic development and environmental improvement,and provide scientific reference for regional sustainable development.