In theory,land fragmentation exacerbates the issue of farmers'abandonment of farmland,and poses a threat to sustainable agricultural development and national food security.However,there is limited research that utilizes large-scale panel data to verify the relationship between land fragmentation and farmers'abandonment of farmland at a national level.The main purpose of this study is to empirically investigate the impact,mechanisms,and heterogeneous effects of land fragmentation on farmland abandonment using survey data from 14454 farmer households across 29 provincial-level regions in rural China from 2017 to 2019,obtained from the Chinese Family Database.The present study employs various models,including a panel multi-dimensional fixed-effects model,a mediating effect model,and a moderating effect model.The empirical results indicate the following:(1)Land fragmentation has an adverse effect on farmers'abandonment of farmland.Each additional plot of land gives rise to an approximately 0.2％increase in the abandonment rate.(2)Land fragmentation leads to an increase in agricultural production costs by approximately 6％,indirectly contributing to farmers'abandonment of farmland.In addition,the off-farm employment of farmers'households reinforces the negative impact of land fragmentation on farmers'abandonment of farmland.Family members engaged in off-farm employment exhibit a 0.2％higher abandonment rate compared to those without such employment.(3)The adverse effects of land fragmentation on farmers'abandonment of farmland vary across different household characteristics.The impact is more significant in farmer households that have experienced land adjustment or have not transferred land.(4)Regional disparities are observed,with a progressively negative effect from the eastern to western regions of China.However,no significant effect is detected in the northeast region.In order to address the issue of farmers'abandonment of farmland,it is crucial to implement effective measures tailored to local conditions.Such measures may include the construction of high-standard farmland,the reduction of agricultural production costs,the development of agricultural social services,the prohibition of land adjustment,and the promotion of land transfer.Implementing these measures effectively and taking into account regional variations will play a vital role in managing land fragmentation and curbing farmers'abandonment of farmland.
关键词
耕地细碎化/面板多维固定效应模型/耕地撂荒/农地调整/农地流转
Key words
land fragmentation/panel multi-dimensional fixed-effects model/farmland abandonment/land adjustment/land transfer
维普
万方数据