XIE Hualin,ZHANG Daobei,WANG Wei,et al.Analysis of Cultivated Land Use Efficiency and Its Influencing Factors for Poyang Lake Ecological Economic Zone[J].Research of Soil and Water Conservation,2016,23(05):214-221.
鄱阳湖生态经济区耕地利用效率时空差异及其影响因素分析
- Title:
- Analysis of Cultivated Land Use Efficiency and Its Influencing Factors for Poyang Lake Ecological Economic Zone
- 关键词:
- 鄱阳湖生态经济区; 耕地利用效率; 数据包络分析(DEA); Tobit回归模型
- Keywords:
- Poyang Lake Eco-economic Zone; cultivated land use efficiency; data envelopment analysis (DEA); Tobit model
- 分类号:
- F301.2
- 摘要:
- 为了解鄱阳湖生态经济区的耕地利用情况，运用数据包络分析（DEA）方法、GIS技术，以县域为评价单位，建立耕地利用效率评价指标体系，对鄱阳湖生态经济区25个县（市）1999—2010年耕地利用效率进行了测度，并采用Tobit回归模型揭示了耕地利用效率变化的影响因素。结果表明：1999—2010年鄱阳湖生态经济区耕地利用的综合技术效率为0.844，说明耕地利用的整体水平有待提高；综合技术效率受纯技术效率和规模效率的变化影响，但规模效率对其影响更大；鄱阳湖生态经济区各县（市）耕地利用效率存在较大的时空差异性；从耕地利用效率的影响因素来看，各因素对耕地利用效率具有不同方向和不同程度的影响，按从大到小排序是：耕地复种指数 > 农业政策 > 乡村人口占总人口比重 > 单位耕地面积拥有农业机械总动力 > 农民人均纯收入。研究结果可为鄱阳湖生态经济区耕地资源有效利用，提高耕地利用潜力提供科学依据。
- Abstract:
- In order to learn the condition of cultivated land use of Poyang Lake Eco-economic Zone, based on the data envelopment analysis (DEA) method and geographic information system(GIS), we took the county scale as evaluation unit and established the evaluation system of cultivated land use efficiency, then calculated the cultivated land use efficiency of 25 counties in Poyang Lake Eco-economic Zone during the period form 1999 to 2010. Meanwhile, we used the Tobit model to reveal the factors on cultivated land-use efficiency change. The results show that the land-use technical efficiency of Poyang Lake Eco-economic Zone was 0.844 during the period from 1999 to 2010, which indicates that the land-use efficiency is low and there is still more potential to improve it. The technical efficiency was affected by changes in the pure technical efficiency and scale, but the scale efficiency had the significant impact on technical efficiency. There is a great spatial variability of cultivated land use efficiency in the Poyang Lake Eco-economic Zone at county scale. According to the influence factors of cultivated land use efficiency, different factors have different influences with varying degrees of impact on the cultivated land use efficiency. The value can be ranked from high to low level: cropping index, agricultural policy, proportion of the rural population to the total population mechanical total power on unit area and per capital net income of farmers. Finally, the results provide the scientific basis for cultivated land use efficiency and improvement of the potential of cultivated land use in the Poyang Lake Eco-economic Zone.
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备注/Memo
收稿日期:2016-01-09;改回日期:2015-01-20。
基金项目:国家自然科学基金项目（41361111）；教育部霍英东青年教师基金项目（141084）；江西省自然科学基金项目（20143ACB21023，20142BAB203028）；江西省社会科学规划项目（13GL05，13YJ53）；江西省研究生创新专项资金项目（YC2015-S217）；江西财经大学校级课题（XS295）
作者简介:谢花林(1979-),男,江西莲花人,教授,博士生导师,主要从事土地利用与管理、资源与环境经济等研究。E-mail:xiehl_2000@163.com
通讯作者:张道贝(1992-),男,安徽六安人,硕士,主要从事土地利用与管理研究。E-mail:1253282422@qq.com