Rapid population aging has serious implications for socio-economic development and poses considerable challenges to food security and agricultural economic resilience, issues that are not well understood to date. Against the background of the aging agricultural labor force in China, this paper, based on the sample data of 30 provinces in China from 2011 to 2020, constructs a spatial autoregressive model and uses the generalized moment method to measure the development level of agricultural economic resilience in China. Moreover, the GMM model and intermediary effect model are used to empirically analyze the impact of rural labor aging on agricultural economic resilience in China and its role channels. The results show that the aging of China’s rural labor force is on the rise, and the resilience level of China’s agricultural economy is on the decline. The aging of the rural labor force significantly weakened the resilience of the agricultural economy; the aging level of the rural labor force increased by 1 unit, and the resilience of the agricultural economy decreased by 1.085 units. The results of this mechanistic analysis show that the aging of the rural labor force mainly weakens the resilience of the agricultural economy by reducing rural human capital and restraining agricultural scale management and agricultural technology progress. Our heterogeneity analysis shows that the aging of the rural labor force has a stronger inhibitory effect on the resilience of the agricultural economy in western regions, non-grain-producing areas, and areas with low economic development levels. This means that the government should pay attention to the impact of the aging rural labor force on the resilience of the agricultural economy, focusing on solving problems such as low agricultural production efficiency and insufficient rural human capital.

Since the reform and opening up, a large proportion of the Chinese rural labor force has transferred to urban and non-agricultural industries. Rural labor transfer not only changes the allocation of household labor in agricultural and non-agricultural sectors but also affects the utilization of other agricultural production factors. Based on data from 818 households in three counties in northern Jiangsu province, this paper analyzed the impact of labor migration on farmers’ adoption of cultivated land quality protection (CLQP) behaviors. The survey results showed that farmers’ awareness of CLQP was still very weak, and the proportion of farmers adopting measures such as subsoiling, straw application, cover crops and green manures and the complementary use of organic fertilizers was still relatively low. The empirical results showed that perennial out-migration for work can constrain households’ protective inputs into soil conservation, but part-time farming locally can promote households’ inputs. The results also showed that farmer characteristics, farming conditions and external environment also significantly affected the farmers’ adoption of soil conservation practices. According to these conclusions, this paper puts forward the corresponding policy implications.

The latest reform of China’s agricultural land property rights system has achieved the separation of rural land ownership, contracting rights, and management rights (the “three rights separation” reform), which is an important means for the Chinese government to achieve the rational allocation of agricultural land resources and plays an important role in improving the green and high-quality development of agriculture. Based on the panel data of 30 sample provinces in China from 2001 to 2020, this paper explores the impact of the latest rural land property rights system reform (the “three rights separation” reform) on the high-quality green development of agriculture. Research has found that, firstly, the reform of the agricultural land property rights system that separates the collective ownership of land, the contracting rights of farmers, and the management rights of land can effectively improve the green development of agriculture. Secondly, the “three rights separation” reform can enhance the green development of agriculture through three paths: expanding the scale of agricultural economy, promoting the upgrading of agricultural industrial structure, and innovating agricultural technology. In addition, fiscal investment in supporting agriculture has played a positive regulatory role in the impact of the “three rights separation” reform on the green development of agriculture. Thirdly, the impact of the “three rights separation” reform on agricultural green development is characterized by regional heterogeneity and production structure heterogeneity, with a more significant promoting effect on the eastern and central regions, as well as the main grain producing areas. The research conclusion provides new ideas for promoting sustainable agricultural development.

Research has found that the transfer of agricultural land in China has to some extent led to agricultural carbon emissions. Therefore, it is urgent to systematically analyze the reasons for carbon emissions caused by agricultural land transfer, find ways to mitigate the increase in agricultural carbon emissions, and achieve low-carbon and sustainable development of agriculture. This article analyzes the relationship between agricultural land transfer, rural human capital, and agricultural carbon emissions in 30 sample provinces in China based on property rights incentives and scale operation theory, using the system GMM model, adjustment model, and threshold model. The results indicate that the transfer of agricultural land has, to some extent, intensified agricultural carbon emissions, with an increase of 0.003 units per unit of agricultural land transfer intensity. Rural human capital has mitigated the carbon emissions resulting from agricultural land transfer and played a corrective role. Under varying levels of rural human capital, there exists a dual threshold effect on the impact of agricultural land transfer on carbon emission intensity, exhibiting a pattern of ‘ineffectiveness-promotion-inhibition’. The analysis of regional heterogeneity reveals significant differences in the relationship between agricultural land transfer and carbon emissions between major grain-producing areas and non-grain-producing areas. It is worth noting that in the northern region, the transfer of agricultural land exacerbates carbon emissions, whereas in the southern region, higher levels of rural human capital effectively curb the growth of carbon emissions. Furthermore, the impact of agricultural land transfer on carbon emissions is not confined to specific regions, indicating that its environmental consequences transcend administrative boundaries and spread geographically, displaying distinct time-dependent characteristics.