摘要
以浙江省桐庐县为研究区,以DEM和1996、2004年桐庐县土地利用现状图为数据源,利用GIS空间分析方法,研究了1996～2004年桐庐县农村居民点空间格局及其变化特征。研究表明：①桐庐县农村居民点主要分布在河谷平原地区,且高山区的农村居民点呈现向河谷平原集中的趋势。②桐庐县农村居民点呈现出两条比较明显的分布带：一条是江南镇—桐庐镇—富春江镇,另一条是横村镇—莪山畲族乡—钟山乡。③桐庐县农村居民点空间分布模式主要有3种：团状分布、带状分布、分散分布。在比较开阔的河谷平原地区农村居民点主要以团聚状分布;在比较狭窄的河谷地区,农村居民点主要以带状分布;而分散分布的农村居民点主要出现在海拔较高的山区。④地形等自然环境条件决定了桐庐县农村居民点的总体空间格局,但城镇发展、交通条件、政策引导对桐庐县农村居民点空间格局变化有着重要的影响。
In this paper,Tonglu County of Zhejiang Province was selected as the study area.Different data sources,such as DEM,land-use data of 1996 and 2004 were used to analyze the change in spatial distribution of rural settlements in Tonglu County,by means of GIS spatial analysis method.The result indicates four phenomena as followings：①Rural settlements were mainly distributed in river valley plain.However,a trend is shown that the rural settlements centralize from higher hilly areas to river valley plain.②Distribution of rural settlements in Tonglu County had two clear distribution zones：one is from Jiangnan Town,Tonglu Town to Fuchunjiang Town,and the another is from Hengcun Town,Eshan Xiang to Zhongshan Xiang.③There are 3 spatial distribution modes in Tonglu County：gobbet pattern,strip pattern and disperse pattern.Rural settlements in wide river valley plain are in gobbet pattern,and those in narrow river valley plain mainly distribute in strip pattern,whereas rural settlements in higher hilly areas are distributed in disperse pattern.④Natural condition,especially terrain,determines general spatial distribution of rural settlements,but town development,traffic condition and policy guidance have important influence on the change of spatial distribution of rural settlements.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2008年第2期180-184,共5页
Resources and Environment in the Yangtze Basin
基金
南京大学人才引进培养基金
作者简介
陈振杰（1974～），男，陕西省陇县人，博士研究生，研究方向为遥感与GIS应用．E—mail：chenzj@nju．edu．cn
