• 首页
  • 刊物介绍
  • 编委会
  • 过刊浏览
  • 订阅指南
  • 在线投稿
  • 联系我们
喀斯特地区不同岩性上农村居民点分布特征——以平果市为例
    点此下载全文
引用本文:李晓青,阳倩妮,周楷淳,罗为群.喀斯特地区不同岩性上农村居民点分布特征——以平果市为例[J].中国岩溶,2021,(2):355-362. LI Xiaoqing,YANG Qianni,ZHOU Kaichun,LUO Weiqun.Distribution characteristics of rural settlement on different lithology in karst area:A case study of Pingguo City[J].Carsologica Sinica,2021,(2):355-362.
摘要点击次数: 18
全文下载次数: 22
学科分类:
作者单位
李晓青 湖南师范大学资源与环境科学学院 
阳倩妮 湖南师范大学资源与环境科学学院 
周楷淳 湖南师范大学资源与环境科学学院 
罗为群 中国地质科学院岩溶地质研究所 
基金项目:国家重点研发计划课题“漓江流域喀斯特景观资源可持续利用调控技术集成与综合示范”(2019YFC0507504);中国地质调查局项目“南方石漠化重点区综合地质调查与评价”(DD20190502)
中文摘要:以典型喀斯特地区广西平果市的农村居民点为研究对象,运用GIS空间分析方法、Voronoi图和景观格局指数分析方法,揭示平果市喀斯特地区不同岩性上农村居民点的空间分布特征。结果表明:(1)平果市农村居民点总面积为4 825.15 hm2,喀斯特地区与非喀斯特地区的农村居民面积比值约为2.8:1;(2)平果市的农村居民点属于聚集型,形态复杂且不规则,非喀斯特地区农村居民点的聚集度相较喀斯特地区表现更为突出,二者变异系数(CV值)比值约为1.2,喀斯特地区崎岖不平的地表使得农村居民点形态更加复杂;(3)同一岩性上的农村居民点在不同乡镇呈现出相似的分布特征,岩石主要从硬度、含水性等方面影响地基的稳定性,不同岩石的性质影响农村居民点的选址。
中文关键词:喀斯特  农村居民点  Voronoi图  景观格局指数  平果市
 
Distribution characteristics of rural settlement on different lithology in karst area:A case study of Pingguo City
Abstract:Located in Baise City, Guangxi Zhuang Autonomous Region, Pingguo City has high terrain in the north and low terrain in the south, with low mountains and hills in the north and south, and karst landform in the middle.The karst landform area of the city accounts for 61.67% of the total area, which is a typical karst landform area. The whole area belongs to the south subtropical monsoon climate zone, with a total area of 2,458 km2, with 9 towns and 3 townships under its jurisdiction. In 2018, the total population of its jurisdiction was 520,412, and the GDP was 17.653 billion yuan. The total area of rural settlements in the city is 4,825.15 hm2,the area of rural settlements in karst area is 3,564.20 hm2 , and the area of non-karst area is 1,260.95 hm2. In this study,GIS spatial analysis,CV value analysis of Voronoi figure,landscape pattern index analysis including patch number,total patch area,patch area ratio,patch density,average patch area and average shape index are used to explore the spatial distribution characteristics of rural settlements on different lithologies in the study area from the aspects of aggregation degree and morphology. The distribution characteristics of rural settlements in karst and non-karst areas were compared and analyzed in this paper, as well as the distribution characteristics of rural settlements with different lithologies in villages and towns.The data processing and analysis of rural settlements areas under different lithology in different townships can effectively eliminate the influence of other factors such as terrain and landform, and location conditions. The results show that,(1)The rural settlements in the karst area are complex and irregular in Pingguo City, and the aggregation degree is lower than that in the non-karst area;(2) Rural settlements on the same lithology show similar distribution characteristics in different villages and towns;(3) CV results show that the aggregation degree of rural settlements in limestone and limestone with dolomite is highest;(4)Landscape pattern index analysis show that the morphology of rural settlement is complex in the two lithology types of carbonate rocks with clastic rocks and carbonate rocks interbedding with clastic rocks.This study explores and analyzes the spatial distribution of rural settlements on different lithologies in karst area,and to a certain extent promote the study of rural settlements in the karst area. However, there are still many shortcomings and further research content needs to be done. Future research can analyze the driving force of rural settlements change more accurately by analyzing the evolution trends of rural settlements on different lithologies, and further explore the distribution law of rural settlements in karst areas more deeply by introducing new research methods.
keywords:karst, rural settlement, Voronoi diagram,landscape pattern index, Pingguo City
查看全文  查看/发表评论  下载PDF阅读器


您是第 5690855 位访问者
版权所有《中国岩溶》编辑部
主管单位:中国地质科学院 主办单位:中国地质科学院岩溶地质研究所 地址:广西桂林七星路50号
邮政编码:541004 电话:0773-5812949 7796657 电子邮件:zgyr@mail.cgs.gov.cn

技术支持:北京勤云科技发展有限公司