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Effects of Environmental Pollution on Cropland Abandonment

from the Perspectives of Air，Water and Soil

——Evidence from the China Labor−force Dynamics Survey

ZHANG Pengjing，XIONG Tao，ZHU Hou

Abstract Cropland abandonment poses a significant threat to China’s food security.It holds para⁃
mount importance for the Chinese people to secure their food supply by maintaining the prescribed 1.8
billion mu of cropland and fostering sustainable agricultural development.From the perspectives of air,
water,and soil,based on the panel data of China Labor Dynamics Survey (CLDS) from 2014 to 2018 and
environmental pollution data of prefecture-level cities，we conducted an empirical investigation into the
effect of environmental pollution on cropland abandonment and its micro-impact mechanism by using
two-way fixed-effects model and instrumental variables，and finally explored the heterogeneous ef⁃
fects of environmental pollution on cropland abandonment among different groups of farmers.The study’
s findings are as follows. Firstly，environmental pollution has a significant positive impact on cropland
abandonment，and this outcome remains robust after undergoing a battery of tests.Secondly，mechanism
analysis reveals that environmental pollution substantially reduces crop yields and significantly elevate
health risks for the labor force，ultimately rendering farmers to abandon cropland.Thirdly，heterogeneity
analysis demonstrates that environmental pollution significantly heightens cropland abandonment among
food crop growers and elderly farmers，with major sectors of Chinese agricultural production being par⁃
ticularly susceptible to its effects.Government departments should take into account cropland abandon⁃
ment when assessing the effect of environmental pollution on agricultural production.Neglecting the im⁃
pact of environmental pollution on cropland abandonment will lead to a significant underestimation of the
decline in agricultural production attributed to environmental pollution.
Key words environmental pollution； cropland abandonment； crop yield； health risk

(责任编辑：王 薇)