Resources Science, Volume. 42, Issue 9, 1739(2020)

Spatiotemporal characteristics of landscape ecological risks on the Tibetan Plateau

Jie WANG1,2, Wanqi BAI1、*, and Guohang TIAN2
Author Affiliations
  • 1Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • 2College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China
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    Figures & Tables(8)
    The scope of the study area
    Spatial distribution of landscape ecological risks on the Tibetan Plateau for four phases
    Proportion of different levels of landscape ecological risks in the arid and humid areas of the Tibetan Plateau, 2015
    Spatial distribution of landscape ecological risks by land cover types on the Tibetan Plateau, 2015
    Change of landscape ecological risks on the Tibetan Plateau, 1992-2015
    • Table 1. Area and proportion of ecological risk classes of the Tibetan Plateau, 1992-2015

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      Table 1. Area and proportion of ecological risk classes of the Tibetan Plateau, 1992-2015

      生态风险等级1992年2001年2008年2015年
      面积/km2比例/%面积/km2比例/%面积/km2比例/%面积/km2比例/%
      低风险区254232.99.87253449.29.84293864.911.41292374.411.35
      较低风险区606501.523.54595728.123.13631298.324.51639406.024.82
      中等风险区911477.635.38963214.337.39954706.937.06970923.837.69
      较高风险区455490.017.68448225.717.40412036.516.00378722.714.70
      高风险区348257.613.52315342.412.24284053.111.03294532.811.43
    • Table 2. Transfer matrix of landscape ecological risk level of the Tibetan Plateau, 1992-2015

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      Table 2. Transfer matrix of landscape ecological risk level of the Tibetan Plateau, 1992-2015

      生态风险等级2015年不同生态风险等级区面积/km2
      低风险区较低风险区中等风险区较高风险区高风险区
      1992年不同生态风险等级面积/km2低风险区253954.70278.190.000.000.00
      较低风险区38419.56538572.3029509.650.000.00
      中等风险区0.00100555.50802184.008738.100.00
      较高风险区0.000.00139230.10308338.407921.53
      高风险区0.090.000.0061646.22286611.30
    • Table 3. Change in average value of ecological risks of different land cover types on the Tibetan Plateau, 1992-2015

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      Table 3. Change in average value of ecological risks of different land cover types on the Tibetan Plateau, 1992-2015

      年份耕地林地草地湿地建设用地裸地
      19920.005960.012680.109400.001340.0000180.03600
      (0.00025)(0.000424)(0.000820)(0.000130)(0.000005)(0.000923)
      20010.006430.013030.106740.001320.0000380.03519
      (0.000264)(0.000433)(0.000836)(0.000128)(0.000003)(0.000915)
      20080.006440.012990.106740.001330.0000430.03458
      (0.000265)(0.000433)(0.000843)(0.000128)(0.000002)(0.000917)
      20150.006250.012910.107950.001360.0000570.03379
      (0.000259)(0.000432)(0.000844)(0.000130)(0.000002)(0.000911)
      1992—2015年风险指数变化率/%4.871.81-1.331.49216.67-6.14
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    Jie WANG, Wanqi BAI, Guohang TIAN. Spatiotemporal characteristics of landscape ecological risks on the Tibetan Plateau[J]. Resources Science, 2020, 42(9): 1739

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    Paper Information

    Received: Mar. 23, 2020

    Accepted: --

    Published Online: Apr. 23, 2021

    The Author Email: BAI Wanqi (baiwq@igsnrr.ac.cn)

    DOI:10.18402/resci.2020.09.09

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