近30年中国农作物种植结构时空变化分析
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刘珍环, 杨鹏, 吴文斌, 李正国, 游良志
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Spatio-temporal changes in Chinese crop patterns over the past three decades
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Zhenhuan LIU, Peng YANG, Wenbin WU, Zhengguo LI, Liangzhi YOU
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| 表2 1980-2011年中国县级农作物种植结构的变化趋势统计 |
| Tab. 2 The characteristic of annual change of cropping structure in China during 1980-2011 |
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| 作物类型 | 县级样本数 | 无趋势 | | 增加趋势 | | 减少趋势 | | 显著性增加* | | 显著性减少* | | 县数 | | 比例(%) | | 县数 | 比例(%) | | 县数 | 比例(%) | 县数 | 比例(%) | 县数 | 比例(%) | | 水稻 | 2341 | 449 | 19.2 | | 390 | 16.7 | | 1502 | 64.2 | | 46 | 2.0 | | 1101 | 47.0 | | 小麦 | 2341 | 178 | 7.6 | 217 | 9.3 | 1946 | 83.1 | 20 | 0.9 | 1429 | 61.0 | | 玉米 | 2341 | 88 | 3.8 | 1085 | 46.3 | 1168 | 49.9 | 417 | 17.8 | 693 | 29.6 | | 大豆 | 2341 | 179 | 7.6 | 1778 | 76.0 | 384 | 16.4 | 1177 | 50.3 | 91 | 3.9 | | 麻类 | 2341 | 1776 | 75.9 | 247 | 10.6 | 318 | 13.6 | 113 | 4.8 | 181 | 7.7 | | 棉花 | 2341 | 1353 | 57.8 | 718 | 30.7 | 270 | 11.5 | 394 | 16.8 | 111 | 4.7 | | 蔬菜 | 2341 | 17 | 0.7 | 2271 | 97.0 | 53 | 2.3 | 2054 | 87.7 | 3 | 0.1 | | 薯类 | 2341 | 124 | 5.3 | 1983 | 84.7 | 234 | 10.0 | 1392 | 59.5 | 40 | 1.7 | | 水果 | 2341 | 104 | 4.4 | 2071 | 88.5 | 166 | 7.1 | 1656 | 70.7 | 40 | 1.7 | | 糖料 | 2341 | 1040 | 44.4 | 572 | 24.4 | 729 | 31.1 | 57 | 2.4 | 18 | 0.8 | | 油料 | 2341 | 34 | 1.5 | 2071 | 88.5 | 236 | 10.1 | 1627 | 69.5 | 17 | 0.7 |
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