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As part of sustainable agricultural innovations and the alternative food movement, agroecology provides important tools to achieve the sustainable development goals (SDGs). Yet very few existing studies have explicitly addressed their linkages. Synergies among the SDGs are often examined at the national level, overlooking nuanced opportunities revealed by small agroecology initiatives at the local scale. Based on literature review, field visits and semi-structured interviews with farms and relevant organizations in China, this research investigates how locally embedded agroecology practices lead to advancement of multiple SDG targets and facilitate the synergies among the SDGs. It also highlights their motivations, achievements, and challenges. We argue that the technocentric metrics of SDGs underappreciate the application of traditional knowledge and small-scale low-tech innovations. By bringing visibility to low-tech and small agroecology initiatives, this paper advocates for stronger inclusion of grassroots agroecology initiatives in SDG discussions among researchers and policy makers. [ABSTRACT FROM AUTHOR]

The coupling coordination of agricultural technology innovation with food security is of great significance for high-quality agricultural development. By identifying the coupling coordination relationship between the two systems and the influencing factors, this paper aims to promote the virtuous cycle of coordinated development between regional agriculture and technology, as well as accelerate the realisation of high-quality development of Chinese agriculture. Therefore, this paper explores the spatial and temporal coupling characteristics of the two using the entropy value method, coupling coordination degree model, and exploratory spatial data analysis, and it screens for important influencing factors using the grey correlation model. The main results show that ① the coupling coordination relationship between agricultural technology innovation and food security in China is at a dissonant stage, but the value of the coupling coordination degree increases from 0.2076 to 0.3437 during the period of study, and the level of coordination gradually improves. ② The degree of coupling coordination in the provincial space exhibits a distribution pattern of "high in the east and low in the west". The areas of high value are primarily situated in the provinces of Shandong, Jiangsu, and other provinces along the southeastern coast of China, while the areas of low value are mainly located in the provinces of Qinghai, Ningxia, and other provinces in inland northwest China. ③ The Moran's index of provincial coupling coordination is greater than 0, showing a certain positive correlation, and there is a significant pattern of spatial aggregation. ④ The correlation coefficients between the influencing factors and the degree of coupling coordination are all greater than 0.35, indicating a moderate or high correlation, but the significance of technological support capacity and food distribution security increased over time. [ABSTRACT FROM AUTHOR]

The agricultural waste is large in number and the utilization rate is extremely low in China, requiring remediated. Formatting the project system and introducing the Public-Private-Partnership (PPP) mode are inevitable to realize the specialization and socialization in resource utilization of agricultural wastes. However, the confusion of financing, management, responsibilities of participants and difficulties in coordinating interests limit the expected effect of the resource utilization of agricultural wastes (RUAW). To this end, combined with the examination of actual cases, this paper constructs a tripartite evolutionary game model of RUAW PPP projects among local government, social capital and farmers, then conducts simulation and case study. We find that the local government does not supervise, social capital acts opportunistically, and farmers choose to cooperate is the evolutionary stable situation, and the cost of supervision for local government and the reward and punishment mechanism of local government to social capital will largely influence the strategy choice of the stakeholders. Strengthening the local government's sense of responsibility and regulatory capacity, optimizing the reward and punishment system, vigorously making technological innovations, and improving the operational capacity of the special purpose vehicle can effectively improve the efficiency of cooperation. The results of the study have some guiding significance for further improving the level of circular agriculture in China even in developing countries and forming a more complete system of resource utilization of agricultural wastes. • The PPP model was used in projects of resource utilization of agricultural wastes. • The local government plays an important role in coordinating between social capital and farmers. • The probability that the social capital will act opportunistically in the PPP project is extremely high. • Farmers' willingness to cooperate is sometimes fragile. [ABSTRACT FROM AUTHOR]