摘要
以长江中游地区的湖北省、湖南省以及江西省在十三五规划当中所涉及的贫困村为研究对象,采用核密度分析、最近邻指数以及空间自相关等空间统计法,对贫困村的数量、空间分布密度及模式、垂直梯度分异等特征进行了分析。结果表明:(1)长江中游地区贫困村省际分布有所不同。数量上湖南省>湖北省>江西省,并且同时存在典型的"平原型"贫困村和"山区型"贫困村,且在省域、国贫县、省贫县、非贫县、城市圈等多级尺度下的数量特征不同;(2)在城市群或者城市圈内,贫困村分布呈现低值集聚,而省域交界处的山区多为贫困村分布的高值集聚区;在巫山、雪峰山和武陵山的贫困连片分布区,贫困村多呈均匀型分布;在江汉平原地区,出现显著的集聚型分布;(3)贫困村的垂直空间分异显著。贫困村主要分布在海拔<200 m的平原地区,随着海拔的升高,数量不断减少。研究有利于更好地认知和理解长江中游地区的贫困村空间格局,实施更为科学的"精准扶贫"战略。
This research examines the poor villages released in the Thirteen-Five Planning of Hubei,Hunan and Jiangxi provinces in the middle reaches of the Yangtze River.The Specific Methods of Nuclear Density Analysis(SMDNA),Nearest Neighbor Index(SNI),Kernel Density(KD),Moran Index(MI)and Overlay Analysis(OA)and other spatial analysis methods were selected to analyze the quantity,spatial distribution density and pattern,and vertical differentiation of the poor villages.The results show that:(1)the inter-provincial distribution of poor villages is different in the middle reaches of the Yangtze River.Hunan having the largest number,followed by Hubei and Jiangxi province,and there are typical"plain"poor villages and"mountainous"poor villages,and the quantitative characteristics are different at multi-level scales such as provincial,national poor counties,provincial poor counties,non-poor counties and urban circles;(2)the distribution of poor villages is low-value clustered in urban groups or urban circles,high-value clustered in mountainous area at the provincial borders;even in the contiguous poor areas of Wushan,Wulingshan and Xuefengshan;and significantly clustered in Jianghan Plain;(3)the vertical space differentiation of poor villages is significant too.The poor villages are mainly distributed in plain area with altitude below 200 m,and with the increase of altitude,the number of poor villages is decreasing.The research helps to better understand the spatial pattern of poor villages in the middle reaches of the Yangtze River and implement a more scientific‘targeted poverty alleviation’strategy.
作者
王雄
龚健
孟现勇
王浩
李士成
WANG Xiong;GONG Jian;MENG Xian-yong;WANG Hao;LI Shi-cheng(School of Public Administration,China University of Geosciences,Wuhan 430074,China;Key Laboratory of Land Resources Law Evaluation Engineering,Wuhan 430074,China;College of Resources and Environmental Science,China Agricultural University,Beijing 100094,China;Department of Civil Engineering,The University of Hong Kong,Hongkong 999077,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China)
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2020年第10期2136-2145,共10页
Resources and Environment in the Yangtze Basin
基金
国家社科基金(14BJY057)
中国地质大学(武汉)科研立项(Y2019002)。
关键词
贫困村
长江中游地区
精准扶贫
最近邻指数
核密度
poor village
middle reaches of the Yangtze River
poverty alleviation
nearest neighbor index
kernel density
