历史视角下亚欧大陆海陆交通可达性空间格局演化
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李鲁奇, 吴启焰, 刘可文, 梁双波, 钱超峰
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Spatial evolution of Eurasian land and sea transport accessibility from the historical perspective
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LI Luqi, WU Qiyan, LIU Kewen, LIANG Shuangbo, QIAN Chaofeng
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表1 各时期等时圈面积及其变化率
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Tab. 1 Area and change rate of isochronous rings in each period
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| 等时圈(d) | 古代(km2) | 近代(km2) | 现代(km2) | 近代变化率(%) | 现代变化率(%) | | 0~1 | 3736700 | 7058700 | 14180100 | 88.90 | 100.89 | | 1~5 | 6778700 | 16124900 | 19830300 | 137.88 | 22.98 | | 5~10 | 8200000 | 10502100 | 7338800 | 28.07 | -30.12 | | 10~20 | 9383500 | 7978000 | 5329400 | -14.98 | -33.20 | | 20~50 | 9925300 | 9654100 | 7171800 | -2.73 | -25.71 | | 50~100 | 10647300 | 8096700 | 6115300 | -23.96 | -24.47 | | > 100 | 14732800 | 3989800 | 3438600 | -72.92 | -13.82 |
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