| 青海省近50年耕地资源变化及驱动力研究 |
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| 引用本文： | 蒋贵彦,刘峰贵.青海省近50年耕地资源变化及驱动力研究[J].干旱区资源与环境,2007,21(2):71-74. |
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| 作者姓名： | 蒋贵彦 刘峰贵 |
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| 作者单位： | 青海师范大学生命与地理科学学院,西宁,810008 |
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| 摘 要： | 耕地减少是全国和各省耕地变化的基本趋势,本文根据青海省现有的统计资料,分析了青海省54年以来耕地面积变化的总体趋势、空间差异及驱动因子,结果表明:经济发展、社会系统压力和农业科技进步是影响青海省耕地数量变化的三类因素,并用主成分分析,多元线性回归分析对耕地面积变化的驱动力进行了定量分析。
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| 关 键 词： | 青海省 耕地数量 动态变化 驱动因子 |
| 文章编号： | 1003-7578（2007）02-071-04 |
| 收稿时间： | 2005-12-28 |
| 修稿时间： | 2005年12月28 |
A Study of Farmland Resources Change and Driving Forces in Qinghai Province in the past 50 Years |
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| JIANG Gui-yan,LIU Feng-gui.A Study of Farmland Resources Change and Driving Forces in Qinghai Province in the past 50 Years[J].Journal of Arid Land Resources and Environment,2007,21(2):71-74. |
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| Authors: | JIANG Gui-yan LIU Feng-gui |
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| Institution: | Geography Deparlment of Qinghai Normal University, Xining 810008,China |
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| Abstract: | The reduction of cultivated land is a primary tendency in the whole country.According to the statistical and survey data at provincial and county levels,trend of cultivated land change and its driving forces in Qinghai Province during the last 54 years were discussed in this paper.As a result of the principal component analysis,the eight driving force variables affecting arable land changes were analyzed which could be classified into three types,i.e.,the dynamic development of economy,pressure of social system and progress of science and technology in agriculture. |
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| Keywords: | Qinghai province cultivated land dynamic change driving force |
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