RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2008, Vol. 17 >> Issue (5): 785-785.

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INFLUENCE OF POPULATION AND ECONOMIC DEVELOPMENT ON VEGETATION

HAN Guifeng1| XU Jianhua2   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-09-20

Abstract:

Vegetation is an important variable in earth system.Influence of human activities on vegetation is obvious on certain scales.This paper，taking Chongqing City as an example，analyzed the correlation between artificial factors and vegetation spatiotemporal distribution based on time series NDVI data.It is shown that vegetation distribution and growth does not increase steadily nor rapidly like GDP and population with sustainable increasing trends from 1998 to 2005.There is always negative correlation between vegetation and GDP and population in terms of time series.However，the correlation appears significantly heterogeneous in space.The obvious negative correlation is observed in relatively developed areas nearby the center of the city where rapid economic development and urbanization make vegetation decrease both in distribution and productivity；whereas positive correlation is observed in those areas away from the city especially in underdeveloped areas.

Key words: vegetation, time series NDVI, population and economy development, spatial correlation field, Chongqing City

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