Acta Geographica Sinica ›› 2014, Vol. 69 ›› Issue (12): 1767-1778.doi: 10.11821/dlxb201412003
• Orginal Article • Previous Articles Next Articles
Luo LIU1,2,3(), Xinliang XU2(
), Jiyuan LIU2, Xi CHEN1, Jia NING2,3
Received:
2013-10-15
Revised:
2014-06-04
Online:
2014-12-25
Published:
2014-12-25
Supported by:
Luo LIU, Xinliang XU, Jiyuan LIU, Xi CHEN, Jia NING. Impact of farmland changes on production potential in China during recent two decades[J].Acta Geographica Sinica, 2014, 69(12): 1767-1778.
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Tab. 1
Distribution of changes in farmland potential productivity in China during 1990-2010
时段 | 变化 类型 | 主要 原因 | 变化总量 (万t) | 变化比例 (%) | 空间分布 |
---|---|---|---|---|---|
1990-2000 | 增加 | 耕地扩张 (毁林、毁草开垦),占增长总量的81.5%。 | 3486.89 | 3.30 | 主要分布于东北平原区和北方干旱半干旱区 ( |
减少 | 城镇扩展侵占耕地和退耕还林还草,分别占减少总量的52.8%和32.3%。 | -2475.89 | -2.34 | 主要集中在长江中下游地区、北方干旱半干旱地区和黄淮海平原区 ( | |
2000-2010 | 增加 | 未利用地和草地开垦,分别占增加总量的48.7%和27.3%。 | 1101.83 | 1.03 | 主要集中在北方干旱半干旱区 ( |
减少 | 城市扩展侵占耕地资源,占减少总量的66.0%。 | -2410.28 | -2.26 | 主要集中在长江中下游地区和黄淮海平原区 ( |
Tab. 2
Impacts of regional farmland change on grain potential productivity in China during 1990-2000
地区 | 减少 | 增加 | 净变 化 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
退耕 还林 | 退耕 还草 | 耕地转水域 | 城镇扩 张侵占 | 耕地转未利用地 | 减少 总量 | 林地 开垦 | 草地 开垦 | 水域转耕地 | 工矿建设用地转耕地 | 未利用地开垦 | 增加 总量 | ||
东北平原区 | -96.83 | -39.19 | -17.43 | -37.38 | -31.21 | -222.03 | 697.62 | 634.96 | 46.16 | 1.94 | 291.21 | 1671.88 | 1449.85 |
云贵高原区 | -20.38 | -18.05 | -3.05 | -35.34 | -0.00 | -76.82 | 56.91 | 14.54 | 0.71 | 0.04 | 0.00 | 72.20 | -4.62 |
北方干旱半干旱区 | -57.12 | -403.58 | -19.46 | -69.78 | -87.23 | -637.16 | 171.68 | 1033.53 | 18.79 | 42.96 | 113.16 | 1380.13 | 742.97 |
华南区 | -29.72 | -1.15 | -35.45 | -67.58 | -0.00 | -133.89 | 17.08 | 2.29 | 3.69 | 0.95 | 0.43 | 24.44 | -109.45 |
四川盆地及周边地区 | -5.59 | -1.61 | -4.37 | -55.34 | -0.00 | -66.90 | 7.65 | 1.03 | 0.67 | 0.40 | 0.00 | 9.76 | -57.14 |
长江中下游地区 | -85.03 | -3.52 | -116.32 | -481.06 | -0.32 | -686.26 | 44.28 | 11.73 | 32.43 | 0.71 | 0.39 | 89.54 | -596.71 |
青藏高原区 | -0.00 | -0.30 | -1.03 | -1.15 | -0.44 | -2.91 | 0.62 | 8.37 | 0.42 | 0.00 | 0.65 | 10.05 | 7.14 |
黄土高原区 | -9.92 | -3.05 | -5.85 | -49.45 | -0.52 | -68.79 | 5.64 | 37.02 | 10.86 | 0.00 | 1.07 | 54.60 | -14.19 |
黄淮海平原区 | -20.69 | -3.26 | -43.87 | -509.86 | -3.45 | -581.14 | 35.60 | 62.99 | 59.76 | 0.20 | 15.74 | 174.28 | -406.85 |
全国 | -325.27 | -473.70 | -246.82 | -1306.93 | -123.17 | -2475.89 | 1026.08 | 1806.46 | 173.50 | 47.20 | 422.66 | 3486.89 | 1011.00 |
Tab. 3
Impacts of regional farmland change on grain potential productivity in China during 2000-2010
地区 | 减少 | 增加 | 净变 化 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
退耕 还林 | 退耕 还草 | 耕地转水域 | 城镇扩 张侵占 | 耕地转未利用地 | 减少 总量 | 林地 开垦 | 草地 开垦 | 水域转耕地 | 工矿建设用地转耕地 | 未利用地开垦 | 增加 总量 | ||
东北平原区 | -52.38 | -39.17 | -10.01 | -46.75 | -7.70 | -156.02 | 84.86 | 52.68 | 13.71 | 10.63 | 83.13 | 245.02 | 89.00 |
云贵高原区 | -32.34 | -9.61 | -4.02 | -25.77 | -0.00 | -71.75 | 5.99 | 17.11 | 0.45 | 0.03 | 0.06 | 23.63 | -48.12 |
北方干旱 半干旱区 | -33.39 | -128.40 | -9.41 | -36.63 | -19.38 | -227.21 | 47.17 | 442.35 | 11.68 | 1.38 | 203.62 | 706.20 | 478.99 |
华南区 | -22.09 | -0.24 | -13.85 | -153.11 | -0.53 | -189.81 | 5.62 | 0.53 | 1.06 | 0.12 | 1.11 | 8.45 | -181.36 |
四川盆地 及周边地区 | -25.38 | -9.98 | -4.10 | -85.34 | -0.07 | -124.86 | 0.43 | 1.20 | 0.06 | 0.00 | 0.01 | 1.69 | -123.17 |
长江中下游 地区 | -27.24 | -1.80 | -160.49 | -724.44 | -2.15 | -916.13 | 20.50 | 3.86 | 30.86 | 1.10 | 0.92 | 57.24 | -858.89 |
青藏高原区 | -0.14 | -3.30 | -0.44 | -2.56 | -0.00 | -6.44 | 0.25 | 1.45 | 0.00 | 0.00 | 0.11 | 1.80 | -4.63 |
黄土高原区 | -46.17 | -48.20 | -16.82 | -62.47 | -0.28 | -173.94 | 0.55 | 4.19 | 6.71 | 0.00 | 1.18 | 12.62 | -161.32 |
黄淮海平原区 | -15.03 | -0.78 | -74.47 | -452.66 | -1.18 | -544.12 | 1.81 | 13.06 | 18.09 | 1.58 | 10.62 | 45.17 | -498.95 |
全国 | -254.17 | -241.49 | -293.60 | -1589.74 | -31.29 | -2410.28 | 167.18 | 536.42 | 82.62 | 14.85 | 300.76 | 1101.83 | -1308.45 |
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