| 甘肃省天水市粮食供需特征及耕地安全性研究 |
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| 引用本文： | 蒲金涌,张孟兰.甘肃省天水市粮食供需特征及耕地安全性研究[J].干旱区资源与环境,2011(5):177-182. |
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| 作者姓名： | 蒲金涌 张孟兰 |
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| 作者单位： | 甘肃省天水农业气象试验站;甘肃省天水市统计局; |
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| 基金项目： | 甘肃省气象局“十人计划”; 国家科技部公益行业专项(GYHY200806021)资助 |
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| 摘 要： | 人口增长、耕地减少及全球变化引起的粮食供需变化不稳定,是区域粮食安全生产必须要考虑的问题之一.运用1981～2008年天水市人口、耕地面积、粮食产量及夏、秋粮生产季节气候因子变化资料,借助数理统计分析方法,分析了该地近30年人口、耕地面积、粮食供需及耕地安全等特征.结果表明:自20世纪80年代以来,天水市人口以4.09...
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| 关 键 词： | 天水 粮食 供需特征 耕地安全 研究 |
Characteristics of grain supply and demand and safety of cultivated land at Tianshui City,Gansu Province |
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| PU Jinyong,ZHANG Menglan.Characteristics of grain supply and demand and safety of cultivated land at Tianshui City,Gansu Province[J].Journal of Arid Land Resources and Environment,2011(5):177-182. |
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| Authors: | PU Jinyong ZHANG Menglan |
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| Institution: | PU Jinyong1,ZHANG Menglan2(1.Agrometeorological Experimental Station of Tianshui in Gansu Province,Tianshui 741020,P.R.China,2.Tianshui Meteorological Bureau,Tianshui 741000,P.R.China) |
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| Abstract: | The regional grain production safety was seriously affected by instability of grain supply and demand which was caused by population increasing,cultivated land decreasing and global changing.Based on the data of population,area of cultivated land,quantity of grain supply and demand and the variations of climatic factors during period of summer and autumn crop production,their variation characteristics were analyzed with the statistic methods in 1981-2008 in Tianshui.The results showed that the population wa... |
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| Keywords: | Tianshui grain characteristics of grain supply and demand cultivated land safety study |
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