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| 重庆直辖以来耕地变化与经济发展关系研究 | |
| 引用本文： | 鲁春阳,高成全,文枫.重庆直辖以来耕地变化与经济发展关系研究[J].国土与自然资源研究,2010(2):36-37. |
| 作者姓名： | 鲁春阳 高成全 文枫 |
| 作者单位： | 1. 西南大学资源环境学院,重庆,400715;河南城建学院 2. 河南城建学院 3. 西南大学地理科学学院 |
| 摘 要： | 采用理论分析与模型分析相结合的方法,对重庆市耕地变化与经济发展的关系进行研究:耕地面积和人均耕地面积呈递减趋势,减少的程度由经济发达地区向经济不发达地区逐渐降低,不同区县耕地安全程度差异较大;耕地面积随人均GDP的增加呈显著减少,耕地面积年减少量与人均GDP的变化形式上呈现"倒U"型,但两者的拟合二次方程R2值较小,说明重庆市还没有真正呈现出经济发展对耕地占用减少的拐点。 |
| 关 键 词： | 耕地资源 经济发展 重庆市 |
The relationship between cultivated land change and economy development of Chongqing |
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| Institution: | LU Chun-yang et al (College of Resource and Environment of South West University, Chongqing 400715, China) |
| Abstract: | The purpose of this paper is to study the relations of cultivated land change ,economy development and grain security.model method is employed.the results indicate that cultivated land and the per capital area of cultivated land decreased ,the decreased degree fall from the developed district to undeveloped disttict.cultivated security index is different in different district;cultivated decreased evidently with the per capital GDP development,the decrement of cultivated land and the per capital GDP take on ＂inverse U＂model,but the R2 of the quadratic equation is small,this show the inflexion of economy development engrossing cultivated decrease hasn＇ t appear. |
| Keywords: | cultivated land resources economic development grain security Chongqing |
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