气候变化背景下近30年祁连山高寒荒漠分布时空变化
张富广,曾彪,杨太保

Spatiotemporal distribution changes in alpine desert belt in Qilian Mountains under climate changes in past 30 years
ZHANG Fu-Guang,ZENG Biao,YANG Tai-Bao
表3 1990S、2000S和2010S祁连山区高寒荒漠分布面积变化
Table 3 Area change in alpine deserts distribution in the Qilian Mountains (QLM) in the 1990S、2000S and 2010S
年代 Years
1990S 2000S 2010S
祁连山区
QLM
高寒荒漠面积 Alpine desert area (km2) 53 061.69 47 135.91 42 569.46
萎缩量 Shrunk area of the alpine desert (km2) 5 925.79 4 566.45 -
面积变化率 Area change ratio of the alpine desert 0.11 0.10 -
东段
Eastern
高寒荒漠面积 Alpine desert area (km2) 1 926.49 1 805.77 1 720.33
萎缩量 Shrunk area of the alpine desert (km2) 120.72 85.44 -
面积变化率 Area change ratio of the alpine desert 0.06 0.05 -
中段
Middle
高寒荒漠面积 Alpine desert area (km2) 15 221.68 14 019.75 11 710.50
萎缩量 Shrunk area of the alpine desert (km2) 1 201.92 2 309.26 -
面积变化率 Area change ratio of the alpine desert 0.08 0.16 -
西段
Western
高寒荒漠面积 Alpine desert area (km2) 35 936.33 31 310.39 29 138.63
萎缩量 Shrunk area of the alpine desert (km2) 4 625.94 2 171.75 -
面积变化率 Area change ratio of the alpine desert 0.13 0.07 -