| 黄土丘陵区上黄试区农业生态经济系统演变阶段划分及其驱动力初探 |
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| 引用本文： | 张丽萍,程积民,王继军.黄土丘陵区上黄试区农业生态经济系统演变阶段划分及其驱动力初探[J].西北农林科技大学学报,2009,9(4):24-28,34. |
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| 作者姓名： | 张丽萍 程积民 王继军 |
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| 作者单位： | 1. 西北农林科技大学,理学院,陕西,杨凌,712100
2. 中国科学院水利部,水土保持研究所,陕西,杨凌,712100 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，国家科技支撑课题 |
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| 摘 要： | 黄土丘陵区田原上黄试验区近20年（1986-2005）来农业生态经济系统演变过程可划分为三个阶段：第1阶段（1986—1999）、第Ⅱ阶段（1999—2002）、第Ⅲ阶段（2002—2005）。在对农业生态经济系统演变三个阶段的特征及互动过程分析的基础上，利用通径分析方法探讨了各个阶段的驱动力。第1阶段：提高单产是主要驱动力；第Ⅱ阶段：退耕还林还草是主要驱动力；第Ⅲ阶段：经济利益是主要驱动力。
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| 关 键 词： | 黄土丘陵区 固原上黄试验区 农业生态经济系统 驱动力 发展趋势 |
Dividing of the Evolution Stages and Primary Exploration of Driving Force of Agricultural Eco-economic System at Shanghuang Experimental Area of the Loess Plateau |
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| ZHANG Li-ping,CHENG Ji-min,WANG Ji-jun.Dividing of the Evolution Stages and Primary Exploration of Driving Force of Agricultural Eco-economic System at Shanghuang Experimental Area of the Loess Plateau[J].Journal of Northwest Sci-Tech University of Agriculture and Forestry(Social Science),2009,9(4):24-28,34. |
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| Authors: | ZHANG Li-ping CHENG Ji-min WANG Ji-jun |
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| Institution: | 1.College of Science;Northwest A&F University;2.The Institute of Soil and Water Conservation;Chinese Academy of Science and Ministry of Water Resources;Yangling;Shaanxi 712100;China |
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| Abstract: | Agricultural eco-economic system evolutionary process can be divided into three stages at Shanghuang experimental area of the Loess Plateau in the recent twenty years(1986-2005):The first stage(1986-1999),The second stage(1999-2002),and the third stage(2002-2005).Based on the analysis of the character and interaction process of the three stages of the development of the agricultural eco-economic system,using the Tongjing analysis this paper disscussed the driving force of each stage.Improving yield is the m... |
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| Keywords: | Loess Plateau Shanghuang experimental areain Guyuan agricultural eco-economic system driving force developing trend |
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