Abstract
To better understand the agricultural resources and environmental problems of the provinces along The Belt and Road in China, it is critical to investigate their agricultural carbon emission efficiency and evolutionary trends. Based on the panel data of 18 key provinces and cities between 2006 and 2015, this paper evaluated the agricultural carbon emission efficiency with the data envelopment analysis–Malmquist model and further explored their dynamic evolutionary trends. There were several main findings. First, the efficiency levels of agricultural carbon emissions showed significant regional differentiation among the areas, with that along the 21st-Century Maritime Silk Road being much higher than that along the Silk Road Economic Belt. Second, technical efficiency was the key factor that restricted the improvement of the comprehensive efficiency of agricultural carbon. Third, most provinces invested in too many redundant and unreasonably allocated resources, showing a trend of diminishing returns to scale. Last, According to dynamic evolution analysis, the total productivity still demonstrated a diminishing trend. This paper provides some suggestions for effectively improve the efficiency of agricultural carbon emissions in China, such as optimize the agricultural industrial structure, increasing the investment of carbon emission reduction technology, and implementing a carbon emission quota clearing system. This paper contributes to the improvement of the environment in China.
Highlights
Global warming involves the essential task of worldwide environmental governance
Based on the panel data of 18 key provinces and cities in China between 2006 and 2015, including agricultural input, expected output and unexpected output, we evaluated agricultural carbon emission efficiency with a data envelopment analysis (DEA)-Malmquist model and further explored their dynamic evolutionary trends
Measurement of agricultural carbon emission efficiency based on BCC model With the use of DEAP 2.0 and the BCC model, this paper evaluated the agricultural carbon emission efficiency of 18 key provinces and cities along the Belt and Road (B&R)
Summary
Global warming involves the essential task of worldwide environmental governance. The Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) indicated that the global temperature has raised by 0.85 ̊C from 1880 to 2012, and the increase in surface temperature every 10 years is higher than that of the prior 10-year period [1]. Dynamic analysis of agricultural carbon emissions efficiency in Chinese provinces. CR1813) and Project for Serving Gansu Province’s Economic and Social Development of Lanzhou University (No 2019-FWZX-04). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript
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