近30年我国谷子生产时空变化与区域优势研究
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刘杰安,王小慧,吴尧,贾浩,尹小刚,史磊刚,褚庆全,陈阜
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Spatiotemporal Variation and Regional Advantages of Foxtail Millet Production in Recent 30 Years in China
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LIU JieAn,WANG XiaoHui,WU Yao,JIA Hao,YIN XiaoGang,SHI LeiGang,CHU QingQuan,CHEN Fu
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表1 近30年各时段全国谷子产量贡献率变化
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Table 1 The change of millet yield contribution rate in each period of China in recent 30 years
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时段
Period of time | 播种面积变化量
Change in sown area (hm2) | 总产量变化量
Change in total production (t) | 单产变化量
Change in yield (kg·hm-2) | 面积贡献率
Area contribution rate (%) | 单产贡献率
Yield contribution rate (%) | 互作贡献率
Mutual contribution rate (%) | | 1985-1990 | -1040000.0 | -1402.0 | 206.7 | 67.5 | 24.7 | 7.7 | | 1990-1995 | -756066.7 | -1556.0 | -24.9 | 95.3 | 3.6 | 1.2 | | 1995-2000 | -272400.0 | -893.9 | -282.9 | 51.5 | 41.1 | 7.4 | | 2000-2005 | -400800.0 | -340.1 | 401.9 | 50.7 | 37.4 | 12.0 | | 2005-2010 | -40500.0 | -212.0 | -156.9 | 37.9 | 59.3 | 2.8 | | 2010-2015 | 30673.3 | 393.5 | 397.8 | 15.2 | 81.7 | 3.1 |
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