PROGRESS IN GEOGRAPHY ›› 2003, Vol. 22 ›› Issue (2): 158-163.doi: 10.11820/dlkxjz.2003.02.007

• Original Articles • Previous Articles     Next Articles

An Analysis on Land Use Dynamics in Huabei Region During Recent Ten Years

ZOU Yarong, ZHAO Xiaoli, ZHANG Zengxiang, WANG Changyou, LIU Bin   

  1. Institute of Remote Sensing of Applications, CAS, Beijing 100101
  • Received:2002-10-01 Revised:2003-01-01 Online:2003-03-25 Published:2003-03-25

Abstract: Human interventions in natural systems have resulted in large changes in vegetation composition and distribution pattern The Land Use Change and Cover (LUCC) study under the International Geosphere Biosphere Program(IGBP) is a major initiative in this regard Land use change plays an important role in global change This paper dynamically monitors status of land use change in Huabei region from 1980s to 2000 based on RS & GIS The data are extracted from LANDSAT TM image From these data, the type of land use is decided on basis of the interactive MGE environment To diminish the geometry error of the image, we adopt the processing method of Least-Square As for pixel sampling method, we adopt the method of Nearest Neighbour Interpolation or Bilinear Interpolation After the image processing, the maximum geometry errors are 2-3 pixels The task of image classification is mainly taken on by experts with the help of relief map, navigation photo etc.;thus landuse coverage could be acquired Huabei region is central of policy, agriculture in china This paper analyzes land use dynamics during latest 10 years in Huabei region based on RS and GIS The results show: there is a lot of farmlands in huabei region, covering 27 35%; Grassland major distributes in Inner Mongolia; the farmland is increasing, especially in dry land; forest and grassland is decreasing;and urban increases rapidly The shifting of farmland to urban is main land change in this region, accounting for 43 63% farmland change,especially in Beijing The grassland shifting farmland is another land use change in Huabei region, which main happens in Inner Mongolia According to land use dynamic zone, Huabei locates in two zones: one is Huanghuaihai farmland shifting urban, which shows that dry land is changing into county The other is ecotone between agriculture and animal husbandry, which focuses in Inner Mongolia From the time view, the rate of farmland increasing during 80s to 90s was faster than during 90s to end 90s’.

Key words: GIS, Huabei, Land use, Ten years dynamics

CLC Number: 

  • F301.24