RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2004, Vol. 13 >> Issue (6): 551-556.

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LAND USE CHANGES AND DRIVING FORCES IN SOUTHEAST HILLS OF CHINA——A CASE STUDY OVER HENGYANG CITY

MO Hong-wei,REN Zhi-yuan,XIE Hong-xia   

  • Received:2003-10-27 Revised:2004-02-13 Online:2004-11-20
  • Contact: MO Hong-wei

Abstract: By using land use/cover change(LUCC) detailed survey data, the authors analyzed comprehensively the course of LUCC in Hengyang City during the period from 1994 to 2001. The spatialtemporal features of LUCC in the past seven years were revealed . The findings are as following: (1) Since 1994, the total amount of cultivated land and unused land reduced, but the others increased in various degrees. In general, agricultural land and unused land were transformed into constructed land while cultivated land was used as garden plot and water area and unused land became woodland. (2) There were obvious differences in LUCC before and after 1997. Great changes occurred before 1997 but much fewer after 1997. There were also some differences in LUCC among different counties of Hengyang City. The greatest change was observed in Qidong County and Downtown, and the smallest change in Hengnan County and Nanyue District. (3) The main reasons, influencing the distinct temporal and spatial differences were population increase, policy control and economy driving. It is mainly the policy factor which causes the temporal difference of land change of Hengyang City before and after 1997, and it is the terrain and relief factor and economic factor that cause the spatial difference of land use and land change in Hengyang City.

Key words: hills, Hengyang City, land use change, driving force

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