Song Hengfei, Li Xiubin, Xin Liangjie, Wang Xue
Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China.
Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
J Environ Manage. 2025 Jan;373:123753. doi: 10.1016/j.jenvman.2024.123753. Epub 2024 Dec 17.
The shift in crop growth in rural households towards non-grain crops is a focus of concern in China's grain security. Land allocation decisions by rural households to abandon farmland can affect crop growth decisions. Prior studies on the relationship between farmland abandonment and rural households' crop growing decisions have been insufficient. This study presents a theoretical framework that encompasses land, labor force, and capital. Using unique survey data from 2448 rural households in China's mountainous areas, we employ an endogenous switching regression model for empirical estimation. The findings demonstrate that farmland abandonment significantly promoted rural households to grow grain crops on their remaining farmland. If rural households had not abandoned their farmland, the crop acreage used for growing non-grain crops would have increased by 16.4%. The effects of abandonment on non-grain production decision-making vary based on per capita farmland area, farmland transfer, and agricultural social services. Furthermore, farmland abandonment by rural households affects decision-making regarding non-grain production by adjusting the agricultural labor force supply. Thus, under policies such as farmland protection and food security, it is necessary to balance the goals of replanting abandoned farmland and preventing non-grain crop growth in mountainous areas, with a focus on enhancing the level of mechanization.
农村家庭农作物种植向非粮食作物的转变是中国粮食安全领域关注的焦点。农村家庭放弃农田的土地分配决策会影响农作物种植决策。先前关于农田弃耕与农村家庭农作物种植决策之间关系的研究并不充分。本研究提出了一个涵盖土地、劳动力和资本的理论框架。利用来自中国山区2448个农村家庭的独特调查数据，我们采用内生转换回归模型进行实证估计。研究结果表明，农田弃耕显著促使农村家庭在其剩余农田上种植粮食作物。如果农村家庭没有弃耕农田，用于种植非粮食作物的耕地面积将增加16.4%。弃耕对非粮食生产决策的影响因人均耕地面积、农田流转和农业社会服务的不同而有所差异。此外，农村家庭的农田弃耕通过调整农业劳动力供给来影响非粮食生产决策。因此，在耕地保护和粮食安全等政策背景下，有必要平衡复垦弃耕农田与防止山区非粮食作物种植增长的目标，重点是提高机械化水平。
