耕地利用规模对耕地生态效率的影响研究——以黄淮海地区为例
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江苏师范大学地理测绘与城乡规划学院

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基金项目:

国家自然科学基金项目(42001191);江苏省自然科学基金项目(BK20191004);江苏师范大学研究生科研与创新实践计划项目(2022XKT0107)。


The impacts of farmland operational scale on farmland ecological efficiency: A case study of the Huang-Huai-Hai Plain
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Affiliation:

1.Jiangsu Normal University;2.江苏师范大学;3.江苏师范大学地理测绘与城乡规划学院

Fund Project:

National Natural Science Foundation of China (42001191); Natural Science Foundation of Jiangsu Province (BK20191004); Jiangsu Normal University Postgraduate Research and Innovation Practice Project (2022XKT0107).

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    摘要:

    探究耕地利用规模与耕地生态效率的关系,为黄淮海地区农业现代化和耕地可持续利用提供科学依据。本研究基于2007—2020年黄淮海地区地级以上城市面板数据,采用超效率SBM-Undesirable模型测算了耕地生态效率,并借助Tobit模型、门槛模型及中介效应模型,分析了耕地利用规模对耕地生态效率的影响。研究发现:1)黄淮海地区耕地生态效率总体呈“波动变化—缓慢下降—逐渐提升”的发展特征,空间上发展不平衡,区域间差异扩大,呈现“高高聚集,低低聚集”现象;2)耕地利用规模与耕地生态效率呈“U”型关系,并存在单一门槛效应,门槛值为0.38 hm2/人,当耕地利用规模低于门槛值时,耕地利用规模的扩大会降低耕地生态效率,反之则会提升耕地生态效率;3)化肥、农药和机械投入强度在耕地利用规模对耕地生态效率的影响中具有中介作用。据此,需加强土地规模经营的政策支持,推动农户耕地利用规模跨过门槛值,构建绿色农业生产经营体系,促进农业向绿色发展转型,以促进耕地生态效率的提升,实现区域耕地可持续利用。

    Abstract:

    Exploring the relationship between farmland operational scale and farmland ecological efficiency can provide a scientific basis for agricultural modernization and sustainable use of farmland in Huang-Huai-Hai plain. Based on a panel data of cities at prefecture level and above in Huang-Huai-Hai plain from 2007 to 2020, this study evaluated the ecological efficiency of farmland operation by the super-efficiency SBM-Undesirable model and analyzed the impact mechanism of farmland operational scale on the ecological efficiency of farmland by the Tobit model, the threshold model and the mediating effect model. Result shows that: 1) The overall ecological efficiency of farmland in the study area is declining, with uneven spatial development and widening regional differences, presenting a phenomenon of “high-high aggregation and low-low aggregation”; 2) There is a “U-shaped” relationship between the expansion of farmland operational scale and farmland ecological efficiency, and there is a single threshold effect, with a threshold value of 0.38 hm2/person. When the farmland scale is lower than the threshold value, the expansion of farmland operational scale will reduce farmland ecological efficiency, and vice versa, it will improve farmland ecological efficiency; and 3) The input intensity of chemical fertilizer, pesticides and machinery plays an mediating role in the impacts of farmland operational scale on the farmland ecological efficiency. Based on the above results, to promote the improvement of ecological efficiency of farmland and realize the sustainable use of regional farmland, this paper suggests: strengthening the policy support of farmland scale management, promoting farmland operational scale to cross the threshold, building a green agricultural production and management system, and promoting the transformation of agriculture to green development.

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引用本文

黄佟,曲艺,舒帮荣,黄鹏锦. 耕地利用规模对耕地生态效率的影响研究——以黄淮海地区为例[J]. 农业现代化研究, 2023, 44(6): 1070-1081
HUANG Tong, QU Yi, SHU Bang-rong, HUANG Peng-jin. The impacts of farmland operational scale on farmland ecological efficiency: A case study of the Huang-Huai-Hai Plain[J]. Research of Agricultural Modernization, 2023, 44(6): 1070-1081

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  • 收稿日期:2023-09-27
  • 最后修改日期:2023-11-23
  • 录用日期:2023-12-18
  • 在线发布日期: 2024-01-31
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