中外超大城市热岛效应变化对比研究
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王美雅, 徐涵秋
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A comparative study on the changes in heat island effect in Chinese and foreign megacities
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WANG Meiya, XU Hanqiu
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表3 研究区地表温度等级变化统计
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Tab.3 LST grade change table in the study area from 1990s to 2015
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变化情况 | 变化等级 | 北京 | 上海 | 广州 | | | 面积/km2 | 比例/% | 总比例/% | 面积/km2 | 比例/% | 总比例/% | 面积/km2 | 比例/% | 总比例/% | 降低 | -4 | 0.75 | 0.03 | 14.27 | 0.90 | 0.03 | 8.76 | 0.56 | 0.03 | 19.02 | -3 | 8.23 | 0.30 | 8.49 | 0.26 | 5.55 | 0.32 | -2 | 56.88 | 2.05 | 29.87 | 0.91 | 50.72 | 2.90 | -1 | 330.45 | 11.90 | 247.83 | 7.56 | 276.00 | 15.77 | 不变 | 0 | 916.48 | 33.01 | 33.01 | 628.06 | 19.17 | 19.17 | 467.18 | 26.69 | 26.69 | 升高 | 1 | 834.16 | 30.04 | 52.72 | 807.13 | 24.63 | 72.07 | 416.13 | 23.77 | 54.29 | 2 | 503.33 | 18.13 | 653.39 | 19.94 | 301.23 | 17.21 | 3 | 114.77 | 4.13 | 550.19 | 16.79 | 168.48 | 9.63 | 4 | 11.16 | 0.40 | 265.36 | 8.10 | 55.48 | 3.17 | 5 | 0.30 | 0.01 | 84.80 | 2.59 | 8.60 | 0.49 | 6 | 0.00 | 0.00 | 0.67 | 0.02 | 0.37 | 0.02 | 合计 | — | 2 776.52 | 100.00 | 100.00 | 3 276.69 | 100.00 | 100.00 | 1 750.33 | 100.00 | 100.00 | | | 伦敦 | 纽约 | 东京 | | 变化等级 | 面积/km2 | 比例/% | 总比例/% | 面积/km2 | 比例/% | 总比例/% | 面积/km2 | 比例/% | 总比例/% | 降低 | -4 | 8.45 | 0.34 | 26.47 | 0.42 | 0.02 | 28.04 | 2.65 | 0.05 | 14.12 | -3 | 19.78 | 0.79 | 14.35 | 0.61 | 15.79 | 0.26 | -2 | 74.93 | 2.99 | 107.57 | 4.59 | 231.44 | 3.86 | -1 | 559.35 | 22.35 | 534.30 | 22.82 | 596.23 | 9.95 | 不变 | 0 | 1 275.04 | 50.94 | 50.94 | 1 324.00 | 56.55 | 56.55 | 3 027.80 | 50.53 | 50.53 | 升高 | 1 | 466.34 | 18.63 | 22.59 | 334.88 | 14.31 | 15.41 | 1 398.82 | 23.34 | 35.35 | 2 | 69.20 | 2.76 | 21.70 | 0.93 | 553.93 | 9.24 | 3 | 26.23 | 1.05 | 3.21 | 0.14 | 139.32 | 2.33 | 4 | 3.48 | 0.14 | 0.63 | 0.03 | 22.49 | 0.38 | 5 | 0.34 | 0.01 | 0.06 | 0.00 | 3.54 | 0.06 | 6 | 0.07 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 合计 | — | 2 503.20 | 100.00 | 100.00 | 2 341.11 | 100.00 | | 5 992.02 | 100.00 | 100.00 |
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