| 吉林省近50年粮食产量及作物结构变化研究 |
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| 引用本文： | 何艳芬,张柏,刘志明.吉林省近50年粮食产量及作物结构变化研究[J].农业系统科学与综合研究,2004,20(2):132-135. |
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| 作者姓名： | 何艳芬 张柏 刘志明 |
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| 作者单位： | 中国科学院,东北地理与农业生态研究所,吉林,长春,130012 |
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| 基金项目： | 中国科学院知识创新重要方向项目(KZCX1-SW-19). |
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| 摘 要： | 通过分析吉林省近50年的粮食产量变化趋势及粮食作物种植结构变化,可以看出吉林省近50年来粮食总产量呈"波动式"迅速增加;粮食结构也发生了巨大的变化,由大豆、玉米、谷子和高粱四大作物"四足鼎立"的结构模式演变为目前以玉米占绝对优势的"玉米型"经济。分析了粮食总产量增加的主要因素和影响粮食作物结构变化的主要因素;指出吉林省粮食生产中存在的问题。图3,参10。
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| 关 键 词： | 粮食产量 粮食结构 吉林省 |
| 文章编号： | 1001-0068(2004)02-0132-04 |
| 修稿时间： | 2003年4月29日 |
The study on changes of grain yield and the crop structure of Jilin province in recent 50 years |
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| HE Yan-fen,ZHANG Bai,LIU Zhi-ming.The study on changes of grain yield and the crop structure of Jilin province in recent 50 years[J].System Sciemces and Comprehensive Studies In Agriculture,2004,20(2):132-135. |
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| Authors: | HE Yan-fen ZHANG Bai LIU Zhi-ming |
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| Abstract: | The trend of total yield of grain increased greatly and in "wave" style derived by analyzing the change of grain yield and the structure of crop in recent 50 years of Jilin province, and the structure of crop-planting changes greatly, which comprised by soybean, corn, millet and broomcorn equally in 1940's, now is dominant by corn, which is called "corn-type" economy. The driving forces of grain yield change and structure change of the crops is analyzed, and the problems in the agricultural development are pointed out. |
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| Keywords: | grain yield crop structure change Jilin province |
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