The stability or security of property rights plays an important role in stimulating the investment of economic entities, which can prevent or alleviate the degradation of land resources and improve the efficiency of agricultural management. This paper focuses on the perspective of land property rights security awareness, analyzes its impact on farmers’ cultivated land quality protection behavior, and, on the basis of a theoretical analysis framework linking the two, uses farmer survey data from southern Jiangxi Province and the probit model to empirically analyze the impact of farmers’ land property rights security awareness on their cultivated land quality protection behavior. The results show that the improvement in farmers’ awareness of land property rights security could significantly improve their probability of applying farmyard manure. This conclusion is proven to be robust by means of a replacement model and adjustment variables. Moreover, it is found that the influence of land property rights security cognition on farmyard manure application differs among farmers by age, degree of part-time work and land scale. Finally, we can draw inspiration for improving the effective implementation of public policies and increasing the publicity of legal knowledge of land property rights to improve farmers’ awareness and consideration of land property rights security.

In the context of promoting high-quality economic development, it is of great significance to study the relationship between the expansion of urban construction land and carbon emission for the transformation of economic development mode and the implementation of green and low-carbon development. Based on the time series data of Nanchang City from 1995 to 2017, this paper analyzes the relationship between urban construction land expansion and carbon emission by constructing carbon emission measurement model, VAR model, using co integration test, Granger causality test, pulse analysis and other research methods. The results show that there is a co integration relationship between urban construction land expansion and carbon emissions, and Granger causality test shows that urban construction land expansion is the Granger cause of carbon emissions, while impulse response analysis confirms that the impact of urban construction land expansion on carbon emissions at the early stage is not significant, and the subsequent impact increases gradually, and the impact on carbon emissions will reach a stable state when urbanization is mature And put forward policy suggestions.

Encouraging farmers to protect the quality of arable land is a focus of the current Chinese government. Enhancing the stability of arable land property rights is considered by the academic community to be an effective way to do so. Based on the survey data of 723 households in the hilly area of Jiangxi Province and using the probit model and robustness test methods, this paper examines the effect of stable farmland transfer management rights on farmers’ use of organic fertilizer and the differences in this effect with different management scales and crop types. The results show that stable management farmland transfer rights significantly encourage farmers to use organic fertilizer. Specifically, signing a written formal contract, increasing the contract registration rate, and extending contracts’ duration can increase farmers’ probability of using organic fertilizer, but whether there is a dispute in a farmland transfer has no significant impact on farmers using organic fertilizer. This study also finds that the impacts of stable arable land transfer management rights vary based on different characteristics of farmers using organic fertilizer. Stable arable land transfer management rights can encourage large-scale farmers and farmers planting grain crops to use organic fertilizer. To increase the stability of these rights, the local government should encourage farmers to sign formal written contracts, standardize their registration, and extend their duration.