Resources Science ›› 2020, Vol. 42 ›› Issue (6): 1063-1073.doi: 10.18402/resci.2020.06.05

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The impact of farmland management scale and fiscal policy for supporting agriculture on agricultural carbon emission

LIU Qiong(), XIAO Haifeng()   

  1. College of Economics and Management, China Agricultural University, Beijing 100083, China
  • Received:2019-12-02 Revised:2020-03-09 Online:2020-06-25 Published:2020-08-25
  • Contact: XIAO Haifeng;


Based on the dynamic panel data of the provinces in China’s mainland from 2000 to 2016, this study constructed a model of regulated mediating effects, and tested the impact of farmland management scale on agricultural carbon emissions. The results show that farmland management scale has both direct and indirect effects on agricultural carbon emissions. The direct impact is embodied in the “scale effect,” that is a U-shaped trend between farmland management scale and agricultural carbon emissions. The indirect influence is reflected by farmland utilization mode. The relationship between farmland management scale and planting structure or fertilizer input intensity is U-shaped, and that between the former and mechanical input intensity is inverted U-shaped. Planting structure and mechanical input intensity restrain agricultural carbon emissions while fertilizer input intensity promote that. Agricultural finance plays a significant regulatory role in the impact of planting structure or fertilizer input intensity on agricultural carbon emissions. Higher level of fiscal expenditure positively regulates the negative relationship between planting structure and agricultural carbon emissions, and negatively regulated the positive relationship between fertilizer input intensity and the latter. Therefore, in order to promote the low-carbon development of agriculture, on the one hand, it is necessary to appropriately expand the scale of farmland management and strengthen the scientific management of farmland utilization; on the other hand, it is advised to continuously increase the financial support for agriculture and further optimize the structure of agricultural financial subsidies.

Key words: farmland management scale, fiscal policy for supporting agriculture, planting structure, chemical fertilizer, agricultural machinery, agricultural carbon emissions