| 定西地区农业生态经济系统的结构和功能分析 |
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| 引用本文： | 贾文雄,宋凤兰.定西地区农业生态经济系统的结构和功能分析[J].干旱区资源与环境,2000,14(4):21-26. |
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| 作者姓名： | 贾文雄 宋凤兰 |
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| 作者单位： | 西北师范大学地理系,兰州,730070 |
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| 摘 要： | 分析了定西地区农业生态经济系统的结构和功能 ,发现水资源时空分布不均 ,种群结构比较单一 ,产业结构不合理 ,使得系统生产能力很低 ,N、P、K不平衡 ,经济效益低下。据此从农业可持续发展的角度出发 ,提出了优化农业生态经济系统结构和提高其功能的对策和建议。
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| 关 键 词： | 定西地区 农业生态经济系统 结构与功能 投入与产出 |
| 文章编号： | 1003-7578(2000)04-021-06 |
| 修稿时间： | 2000年4月26日 |
Analysis of Structure and Function of Agro-Economic System of Dingxi Area |
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| JIA Wen-xiong,SONG Feng-lan.Analysis of Structure and Function of Agro-Economic System of Dingxi Area[J].Journal of Arid Land Resources and Environment,2000,14(4):21-26. |
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| Authors: | JIA Wen-xiong SONG Feng-lan |
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| Abstract: | Through analyzing the structure and function of agro economic system of Dingxi area, water resources is found not to be well distributed in space and time, its population structure is unitary and the industrial structure is irrational, which lead to the low productivity, the imbalance of K、P、K and the bad economic benefit of the system. From the view point of sustainable develplment, strategies and suggestion for improving the structure of the agro economic system and enhancing its function are put forward. |
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| Keywords: | Dingxi area Agro economic system Structure and function Investment and product ` |
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