The frequent occurrence of extreme environmental risks during urbanization has highlighted the ecological and economic contradictions within the urban-rural complex system, often obscuring the agricultural production value of urban green infrastructure due to its landscape functions. This paper, based on the perspective of urban-rural environmental resilience and supported by theories of system resilience and ecological-economic coupling, clarifies the coupling mechanism between urban-rural environmental resilience, urban green infrastructure, and UGI agricultural economic benefits. A comprehensive evaluation index system encompassing ecological, economic, and social dimensions is constructed, and a case study is conducted using entropy-weighted AHP combination weighting and coupling coordination model. The results show that urban green infrastructure can achieve a two-way benefit of improved ecological resilience and increased agricultural economic value through urban agriculture. However, most projects suffer from insufficient coordination in resilience-economic coupling and short industrial chains. Based on this, optimization paths are proposed, including spatial planning, industrial operation and maintenance, and policy support, aiming to provide practical reference for the construction of resilient cities and the high-quality development of urban green agriculture.
A polymer material with carbon admixtures has been developed for use as resistive conductive coatings on diff erent surfaces. Testing of the coating was carried out with diff erent binders and on diff erent materials of the bases. A dependence has been obtained of the infl uence of the volume electrical resistivity of modifi ed materials on the percentage of a carbon admixture; optimum formulations of the mixtures have been determined.
Against the global backdrop of carbon peaking and carbon neutrality goals, renewable energy subsidy policies worldwide are shifting from universal, tariff-based schemes toward targeted, market-oriented mechanisms. However, existing research remains divided on the incentive effects of subsidies on firm investment and the risk of resource misallocation, and few studies have established a clear micro-macro linkage between firm-level subsidy receipts and regional employment and growth outcomes. Taking China’s 2016 renewable energy subsidy reform—characterized by competitive project bidding and green certificate trading—as a quasi-natural experiment, this study constructs a two-layer panel dataset covering 286 A-share listed renewable energy firms (2010–2023, 2412 firm-year observations) and 30 provincial-level regions in China (2010–2023, 420 region-year observations). Employing difference-in-differences (DID), triple difference-in-differences (DDD), mediation effect models, and threshold regression, combined with instrumental variables and placebo tests to address endogeneity, we empirically examine how subsidy policies transmit from firm behavior to regional employment and economic growth. The results indicate that the 2016 reform significantly boosted regional employment (elasticity = 0.035, p < 0.01) and economic growth (elasticity = 0.031, p < 0.05) in treated provinces. At the firm level, subsidy intensity exhibits an inverted U-shaped relationship with investment efficiency, with an estimated inflection point at 8.3% of operating revenue within the sample. Mechanism analysis shows that easing financing constraints, stimulating technological innovation, and reducing operational risk serve as core transmission channels, with the strongest contribution from financing constraint alleviation. Heterogeneity analysis further finds larger effects for private firms, high-tech enterprises, and coastal regions. This study develops a nonlinear analytical framework of “subsidy intensity–firm behavior–regional outcomes”, identifies context-specific boundaries of subsidy effectiveness, and provides integrated micro-macro empirical evidence for optimizing subsidy policies and advancing the global energy transition.
Relevance. Determination of the heterosis effect in F1 hot pepper hybrids for the main economically valuable traits when grown in the conditions of the Mogilev region of the Republic of Belarus is relevant.Methodology. The studies were conducted in 2018-2020 under greenhouse conditions in unheated polycarbonate greenhouses on the experimental field of the Department of Agricultural Biotechnology, Ecology and Radiology of the Belarusian State Order of the October Revolution and Red Banner of Labor Agricultural Academy, following generally accepted methods in breeding work.Results. The positive heterosis effect in hot pepper hybrids for early yield was noted in samples where Lara, Volgograd, and Line 9 served as the maternal components, and Yezhik and Feferona Krasnaya as the paternal components. For total yield, Lara, Jalapeno, and Line 9 were the maternal components, and Yezhik was the paternal one. The greatest heterosis effect for capsaicin content was observed in the hybrids: Zimrid × Kitay (96.7%), Agdas × Kitay (80.0%); for vitamin C content – Agdas × Kitay (62.7%), Line 9 × Feferona Krasnaya (42.7%); for dry matter content – Jalapeno × Yezhik (24.7%), Che Guevara × Yezhik (20.2%); and for carotene content — Jalapeno × Red Dragon (114.6%), Zimrid × Kitay (105.4%).Conclusion. The best hybrid combinations exhibiting a range of economically valuable traits – Lara × Yezhik, Agdas × Yezhik, and Jalapeno × Yezhik – were registered under the names Dydysh F1, Vasilek F1, and Zakhar in the State Register of Agricultural Plant Varieties in 2022 and recommended for cultivation in home gardens.
The new wave of high-quality agricultural development in China requires increased government regulation to ensure food security, product quality safety, environmental protection, and market stability. However, the existing regulatory system does not meet modern challenges: a multiplicity of goals, a complex external and internal environment, as well as the requirements of modern management mechanisms. The analysis shows that the key problems are related to the coordination of institutional mechanisms. Thus, challenges such as the blurring of powers between central and local authorities, a mismatch of responsibilities and capabilities, a conflict of political goals and insufficient executive capacity, including a weak base on the ground, problems with the implementation of standards and a lack of information exchange, were highlighted. In addition, the limitations are the level of technological development and the structure of the agricultural sector. To address these challenges, reforms are needed to increase coordination between departments, strengthen the capacity of local authorities, introduce digital and intelligent control tools, improve the legal framework and incentives, and actively involve the market and society in the regulatory system. Important steps will include the integration of administrative resources, improving the mechanisms of interaction between the center and the regions, the development of agricultural big data, traceability and credit systems, expanding the use of economic tools and stimulating public participation. These measures will contribute to building an effective management system that meets China’s national conditions and contributes to the modernization of the agricultural sector.
