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### 基于DEA方法的农地非农化效率研究

1. 南京农业大学土地管理学院, 南京 210095
• 收稿日期:2013-04-26 修回日期:2013-10-07 发布日期:2014-06-24
• 通讯作者: 郭忠兴（1971-），山东日照人，教授，博士生导师，主要研究公共政策与农村发展、土地经济与管理。E-mail：guozhongxing@163.com E-mail:guozhongxing@163.com
• 作者简介:汪险生（1988-），安徽潜山人，博士研究生，主要研究土地经济与管理。E-mail：xshwv@163.com
• 基金资助:

中央高校基本科研业务费专项资金“农村资产管理与社区治理”（KYZ201130）。

### Farmland Conversion Efficiency Based on the DEA Model

WANG Xian-sheng, GUO Zhong-xing

1. College of Land Management, Nanjing Agricultural University, Nanjing 210095, China
• Received:2013-04-26 Revised:2013-10-07 Published:2014-06-24

Abstract:

Measurement of the efficiency of farmland conversion can provide scientific basis for reasonable exploitation of cultivated land and efficient allocation of construction land. So, it needs to understand the variation tendency and the affecting factors of the efficiency of different regions. Therefore, in this paper, the DEA analysis method was employed to measure the efficiency and its variation of farmland conversion, and the econometric method based on fixedeffect model was employed to analyze the influencing factors of the efficiency.
The DEA analysis method was mainly used to construct an efficiency index of farmland conversion, which was employed to estimate the efficiency of farmland conversion of each province and four regions in China based on the 2001-2008 provincial level data. The results indicated that the efficiency of farmland conversion on provincial level presented three trends, namely, fluctuating downward, fluctuating upward and maintaining steady. And among the four regions, only the Old Northeastern Industrial Base's mean efficiency was higher than 0.6, while the mean efficiency of the whole country was 0.489, indicating that China had consumed 51.1% more of index of cultivated land occupied by construction (nearly 91455.75 hm2). Meanwhile, due to the reciprocal relationship in the efficiency evaluation between inefficient regions and high efficient regions of the initial year, the convergence phenomenon appeared in evaluation of land conversion efficiency on the provincial and regional levels.
The analysis of the affecting factors of farmland conversion efficiency implied that the dual system of land property rights was the crux of excessive farmland conversion and unreasonable configuration of farmland conversion. And fiscal expenditure pressure over local governments further fuelled the non-rationality of farmland conversion. Among other factors affecting farmland conversion efficiency, the marginal effect of the upgrading of the industrial structure would be from negative to positive, when the proportion of the tertiary industry achieved at 47.02%, and direction and strength of the level of economic development and urbanization rate of different regions acting on farmland conversion efficiency were different, which made them non-significant statistically at the national level. On these grounds, this paper put forward twowheel driven reform of land system and the fiscal and taxation system to reverse the trend of land conversion efficiency loss.

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