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基于GIS的中国人居环境自然适宜性评价

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Natural environment suitability for human settlements in China based on GIS
With the degeneration of environment and acceleration of urbanization, human environment has attracted great attention worldwide. This paper sets up the Human Settle-ments 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 ac-counts 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.

Human SettlementsHuman Settlements Environment Indexnatural environment suitabilityGISChina

封志明、杨艳昭、张丹、唐焰

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Institute of Geographic Sciences and Natural Resources Research, CAS, Bei.jing 100101, China

Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Agricultural Bureau of Hechi City, Hechi 547000, Guangxi, China

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Human Settlements Human Settlements Environment Index natural environment suitability GIS China

国家自然科学基金国家自然科学基金National Key Technology R&D Program

40771204408012232006BAC18B01

2009

10.1007/s11442-009-0437-x

地理学报(英文版)
中国地理学会,中国科学院地理科学与资源研究所

地理学报(英文版)

CSTPCDCSCDSCI
影响因子：1.307
ISSN：1009-637X
年,卷(期)：2009.19(4)
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