• 中文核心期刊
  • CSCD来源期刊
  • 中国科技核心期刊
  • CA、CABI、ZR收录期刊

丘陵山区地块尺度耕地生态效率及其影响因素分析

Eco-efficiency and Determinants of Plot-Scale Cultivated Land in Hilly Regions in Fujian

  • 摘要: 耕地生态效率是评价耕地利用经济与环境绩效的有效测度。基于福建丘陵山区146块耕地的微观调查数据,利用Bootstrap-DEA模型计算耕地生态效率和投入变量的生态效率,并通过Double Bootstrap Truncated回归模型分析耕地生态效率影响因素。研究发现:Bootstrap纠偏后的福建省丘陵山区耕地生态效率为0.610 7,化肥、农药及能源等投入变量的生态效率分别为0.679 9、0.575 5、0.481 9;Truncated回归结果显示耕地规模、教育程度、产品认证及复种指数对生态效率有显著影响,环境补贴对生态效率改善还未起作用。表明福建省丘陵山区耕地生态效率整体较为低下,应进一步推动土地适度规模经营、推广农业绿色发展技术及加大绿色生态农业补贴力度,以提高耕地生态效率。

     

    Abstract: Eco-efficiency is an effective indicator for evaluating the economic and environmental performances of a cultivated land. Based on the micro-survey data on 146 plots in the hilly areas of Fujian province, the eco-efficiencies of the cultivated land and its inputs were calculated using the bootstrap-DEA model. The determinants of the eco-efficiency were analyzed by the double bootstrap truncated regression model. It was found that the bias-corrected eco-efficiency of the cultivated land was 0.610 7, and the eco-efficiencies on inputs of fertilizer, pesticide and energy were 0.679 9, 0.575 5 and 0.481 9, respectively. The regression analysis showed that the cultivation scale, professionalism, product certification and multiple cropping index impacted the eco-efficiency significantly, and that the implemented environmental remedies had yet exerted a significant effect. The overall eco-efficiency remained relatively low for the regions. Conservative land development, enhanced green practices, and ecologically appropriate agriculture were seen necessary to improve the eco-efficiency of the cultivated land in the hilly areas.

     

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