中国省域农业低碳效率评估与演变研究

    Assessment and Evolution of the Low-carbon Efficiency of Agriculture in Provinces of China

    • 摘要: 2019年中央1号文件提出绿色农业发展行动计划,作为绿色农业的重要方面,低碳农业的发展是必不可少的举措。如何准确测度农业低碳发展效率并分析演变规律对加快低碳农业发展具有重要意义。以农用物资、稻田、畜禽养殖、能源消耗四类作为碳源,从低碳视角下引入农业碳汇作为期望产出,基于共同前沿方法结合全局Malmquist模型测算中国30个省(区、市)2000-2016年农业低碳发展效率,将效率进一步分解,明确效率增长源泉及作用规律。结果表明:中国农业低碳发展效率整体上呈现显著上升趋势。分地区看,东部地区处于领先地位,西部地区保持稳定,中部地区迎头赶超。分省份看,北京农业低碳发展水平具有绝对优势,江西省最低。从增长源泉来看,农业低碳发展效率的改善主要取决于农业技术进步的增长,农业技术效率处于恶化状态。中国必须采取结合区域资源特点,打破省份地域限制加大农业生产交流等措施以提高农业低碳发展效率,促进低碳农业的实现。

       

      Abstract: The Central Document No.1 in 2019 has put forward the action plan for the development of green agriculture. As an important aspect of green agriculture, the development of low-carbon agriculture is an essential measure. How to accurately measure the efficiency of the low-carbon agricultural development and analyze the law of evolution is of great significance to accelerate the development of low-carbon agriculture. By taking the agricultural inputs, paddy fields, livestock and poultry breeding, and energy consumption as the carbon sources, the agricultural carbon sink was introduced as the desirable output from the perspective of low carbon. Then, based on the metafrontier method combined with the global Malmquist model, the low-carbon agricultural development efficiency of 30 provinces (districts, cities) in China from 2000 to 2016 was calculated, and the efficiency was further decomposed to identify the sources and rules of efficiency growth. The results showed that the overall efficiency of the low-carbon agricultural development in China showed a significant upward trend. By region, the eastern region has taken the leading position, the western region has remained stable, and the central region has been catching up. By province, the low-carbon agricultural development level in Beijing had absolute advantage, while Jiangxi Province had the lowest. From the perspective of growth sources, the improvement for the efficiency of low-carbon agricultural development mainly depended on the growth of agricultural technical progress, but the agricultural technical efficiency has been in a state of deterioration at present. Therefore, China should adopt the following measures such as combining the characteristics of regional resources, breaking the regional restrictions of provinces and increasing the exchanges of agricultural production, thus to improve the efficiency of low-carbon agricultural development and promote the realization of low-carbon agriculture.

       

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