| 建国以来陕西省粮食生产及其作物结构变化 |
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| 引用本文： | 马超群,何艳芬.建国以来陕西省粮食生产及其作物结构变化[J].长安大学学报(社会科学版),2008,10(2):82-86. |
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| 作者姓名： | 马超群 何艳芬 |
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| 作者单位： | 1. 西北大学城市与资源学系,陕西,西安,710069;长安大学地球科学与国土资源学院,陕西,西安,710054
2. 西北大学城市与资源学系,陕西,西安,710069 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 目前陕西省处于快速城镇化和工业化的大背景之下,保证一定数量耕地面积对保障粮食安全有极其重要的意义。运用趋势分析及结构分析法对建国以来陕西省粮食产量变化趋势及粮食作物种植结构变化进行研究。研究发现粮食生产的特征为：粮食总产量波动增长;尽管各种作物的播种面积结构基本稳定,但各农作物之间的绝对面积比例随时间变化较为明显;粮食单产水平提高对产量增长贡献最大。分析结果表明,粮食生产及作物结构变化可以明确土地利用与粮食生产之间的关系。
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| 关 键 词： | 农业经济 粮食产量 粮食结构 粮食安全 |
Changes of grain yield and the crop structure of Shaanxi Province after the foundation of P. R. of China |
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| MA Chao-qun,HE Yan-fen.Changes of grain yield and the crop structure of Shaanxi Province after the foundation of P. R. of China[J].Journal of Chang'an University(Social Sciences Edition),2008,10(2):82-86. |
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| Authors: | MA Chao-qun HE Yan-fen |
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| Institution: | MA Chao-qun , HE Yan-fen (1. Department of Urban and Resource Science, Northwest University, Xi＇an 710069, Shaanxi, China; 2. School of Earth Science and Resources, Chang＇an University, Xi＇an 710054, Shaanxi, China) |
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| Abstract: | At present, Shaanxi Province is in the progress of urbanization and industrialization. Therefore, it is of great significance to keep certain areas of farmland for crop yield. The authors, with the help of tendency analysis and structure analysis, study the changing tendency of crop yield and structural changes of crop planting of Shaanxi Province after the foundation of P. R. of China. The analysis indicates that the crop production is characterized by ＂wave-like＂ pattern, although there is a stability in planting area and structure. However, there is an obvious changes of the absolute areas among different crops in the time changes, and the rise of one-crop yield has contributed a lot to the total increase of crops. The results of analysis show that there is a close relationship between land utilization and crop yield. |
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| Keywords: | agronomics crop yield crop structure grain security |
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