基于GIS的中国人居环境自然适宜性评价(英文)

编号 zgly0001586047

文献类型 期刊论文

文献题名 基于GIS的中国人居环境自然适宜性评价(英文)

作者 封志明  杨艳昭  张丹  唐焰 

作者单位 InstituteofGeographicSciencesandNaturalResourcesResearch  CAS  GraduateUniversityofChineseAcademyofSciences  AgriculturalBureauofHechiCity 

母体文献 Journal of Geographical Sciences 

年卷期 2009年04期

年份 2009 

分类号 TU984.115  P208 

关键词 HumanSettlements  HumanSettlementsEnvironmentIndex  naturalenvironmentsuitability  GIS  China 

文摘内容 With the degeneration of environment and acceleration of urbanization,human environment has attracted great attention worldwide.This paper sets up the Human Settlements Environment Index(HEI) model and evaluates the natural environment suitability for Human Settlements in China based on GIS technology.The results show that the HEI of China decreases from southeast to northwest in general,HEI is significantly correlated with population density at grid size and the correlation coefficient(r) between them reaches 0.93,which indicates that natural environment suitability for Human Settlements has a significant influence on population distribution.Most people in China mainly concentrate in areas with high natural environment suitability.The total suitable area is 430.47×104 km2,which accounts for nearly 45% of the total land area in China,while the proportion of people living in the area reaches 96.56%.With a population density of 18 people per square kilometer,the critical area is the transitional region for people to live in China.The critical area covers 225.11×104 km2 with a population of 41.12 million.The non-suitable area covers 304.42×104 km2 with a population of only 2.49 million.