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cje ›› 2010, Vol. 29 ›› Issue (12): 2444-2451.

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Land use patterns in Northeast China based on landform characteristics.

WANG Xue-zhi1, ZHANG Zheng-xiang1, SHENG Lian-xi1, ZHOU Dao-wei2   

  1. 1School of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, China|2Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China
  • Online:2010-12-08 Published:2010-12-08

Abstract: Supported by Landsat TM7 remote sensing images, SRTM DEM and soil maps, and using ArcGIS and ENVI software, hydrological analysis, spatial analysis and supervised classification models, the basic landform types and land use patterns in Northeast China were quantitatively analyzed. The total area across the east of Daxing’an Mountain ridge line and the north of Qilaotu Mountain ridge line was 1.0727×106 km2, and the basic landform types were mountain, hill, platform, and plain, occupying 21.2%, 35.6%, 16.1% and 27.1%, respectively. The locations, border lines, and inter-relationships of Songnen plain, Songliao plain, and Keerqin plain were clarified, and the traditional methods for qualitative determining border lines were improved. The land use patterns included forestland, grassland, cropland, sandy land, saline land, wetland, water area, and construction land, occupying 41.1%, 14.0%, 33.8%, 0.9%, 1.5%, 4.7%, 1.4%, and 2.8%, respectively. Some issues related to land use and landform were discussed.

Key words: Soil, Rhizobia, Copper, Zinc, Cadmium, Fractionation