共和盆地沙地空间分布格局变化特征
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高娜, 胡光印, 董治宝
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Change characteristics of spatial distribution pattern of sandy land in Gonghe Basin
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Na Gao, Guangyin Hu, Zhibao Dong
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表2 1980—2020年各区域沙地重心和沙地重心迁移
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Table 2 Sandy land barycenters and migration data from 1980 to 2020
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区域 | 年份 | 沙地重心 | 迁移距离 /km | 迁移方向 /(°) | 迁移度 | 时段 | 沙地重心移动 |
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经度(E) | 纬度(N) | 距离/km | 角度/(°) |
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A | 1980 | 100°35′15.544″ | 35°55′05.621″ | 53.13 | 124.86 | 0.41 | \ | \ | \ | 1990 | 100°34′42.110″ | 35°54′29.922″ | 53.05 | 126.36 | 0.38 | 1980—1990 | 1.39 | 218.84 | 2000 | 100°34′38.335″ | 35°54′30.232″ | 52.97 | 126.41 | 0.38 | 1990—2000 | 0.09 | 278.53 | 2010 | 100°34′39.637″ | 35°54′22.017″ | 53.14 | 126.62 | 0.38 | 2000—2010 | 0.26 | 175.62 | 2020 | 100°34′45.359″ | 35°54′12.440″ | 53.42 | 126.80 | 0.38 | 2010—2020 | 0.33 | 157.44 | 平均值 | \ | \ | 53.14 | 126.21 | 0.39 | 1980—2020 | 1.83 | 206.56 | B | 1980 | 100°12′35.614″ | 36° 10′55.253″ | 43.41 | 107.87 | 0.83 | \ | \ | \ | 1990 | 100°12′35.617″ | 36° 10′55.250″ | 43.41 | 107.87 | 0.83 | 1980—1990 | 0.00 | 141.59 | 2000 | 100°12′34.797″ | 36° 10′57.503″ | 43.37 | 107.79 | 0.82 | 1990—2000 | 0.07 | 346.89 | 2010 | 100°12′35.358″ | 36° 10′56.791″ | 43.39 | 107.81 | 0.83 | 2000—2010 | 0.03 | 151.22 | 2020 | 100°12′42.548″ | 36° 10′54.671″ | 43.58 | 107.83 | 0.83 | 2010—2020 | 0.19 | 113.44 | 平均值 | \ | \ | 43.43 | 107.83 | 0.83 | 1980—2020 | 0.17 | 98.90 | C | 1980 | 100°25′20.430″ | 36°03′16.092″ | 42.92 | 119.56 | 0.65 | \ | \ | \ | 1990 | 100°23′05.287″ | 36°03′44.740″ | 39.56 | 120.58 | 0.60 | 1980—1990 | 3.44 | 287.81 | 2000 | 100°23′00.077″ | 36°03′45.477″ | 39.44 | 120.63 | 0.60 | 1990—2000 | 0.13 | 282.90 | 2010 | 100°22′39.249″ | 36°03′50.351″ | 38.91 | 120.79 | 0.59 | 2000—2010 | 0.53 | 289.15 | 2020 | 100°22′31.685″ | 36°03′46.971″ | 38.80 | 121.06 | 0.59 | 2010—2020 | 0.21 | 243.25 | 平均值 | \ | \ | 39.93 | 120.52 | 0.61 | 1980—2020 | 4.26 | 285.82 | D | 1980 | 100°35′15.544″ | 35°55′05.621″ | 31.94 | 120.72 | 0.32 | \ | \ | \ | 1990 | 100°34′42.110″ | 35°54′29.922″ | 31.77 | 123.20 | 0.29 | 1980—1990 | 1.39 | 218.84 | 2000 | 100°34′38.335″ | 35°54′30.232″ | 31.69 | 123.27 | 0.29 | 1990—2000 | 0.09 | 278.53 | 2010 | 100°34′39.637″ | 35°54′22.017″ | 31.85 | 123.64 | 0.29 | 2000—2010 | 0.26 | 175.62 | 2020 | 100°34′45.359″ | 35°54′12.440″ | 32.12 | 123.97 | 0.29 | 2010—2020 | 0.33 | 157.44 | 平均值 | \ | \ | 31.88 | 122.96 | 0.30 | 1980—2020 | 1.83 | 206.56 | E | 1980 | 100°50′44.911″ | 35° 42′18.233″ | 3.03 | 340.10 | 0.08 | \ | \ | \ | 1990 | 100°43′43.003″ | 35° 43′10.946″ | 12.39 | 293.52 | 0.31 | 1980—1990 | 10.54 | 281.46 | 2000 | 100°43′29.202″ | 35° 42′56.722″ | 12.56 | 291.06 | 0.32 | 1990—2000 | 0.56 | 219.81 | 2010 | 100°51′44.998″ | 35° 40′47.043″ | 0.34 | 102.14 | 0.01 | 2000—2010 | 12.90 | 110.82 | 2020 | 100°51′45.530″ | 35° 40′47.499″ | 0.35 | 99.46 | 0.01 | 2010—2020 | 0.02 | 44.94 | 平均值 | \ | \ | 5.74 | 225.26 | 0.15 | 1980—2020 | 3.22 | 154.67 |
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