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The coupling coordination of scientific and technological innovation, ecological environment, and economic development is an effective way for China to achieve high-quality development in the new development stage. The new infrastructure construction (hereinafter referred to as 'new infrastructure') with digital technology as the core provides new momentum for China's high-quality coordinated development. Guided by the new development concept and based on system theory and synergy theory, this study constructed a coupled coordination system of 'innovation-ecology-economy,' employed inter-provincial panel data from 2011 to 2020, and combined the spatial Durbin model with the mediating effect test method to empirically test the impact of new infrastructure on regional 'innovation- ecology-economy' coupling coordination. The findings indicated that: ① New infrastructure investments improved the level of regional 'innovation-ecology-economy' coupling coordination, generating strong positive spatial spillover and supporting both geographic distance matrix and economic distance matrix. ② Different types of new infrastructure investments contributed to the regional 'innovation- ecology-economy' coupling coordination, showing significant heterogeneity, where innovation infrastructure and convergence infrastructure had significant driving effects, while information infrastructure had a less obvious enabling effect. ③ New infrastructure investments fostered regional 'innovation-ecology-economy' coupling coordination through three transmission mechanisms: innovation factor concentration, energy efficiency improvement, and digital financial boost. Accordingly, Chinese provinces should enhance the enabling effect of new infrastructure on the regional 'innovation-ecology-economy' coupling coordination by increasing new infrastructure investment, promote the formation of a linkage mechanism for new infrastructure empowerment, and open up the transmission path of new infrastructure so as to achieve high-quality and sustainable regional development in the new era of China. [ABSTRACT FROM AUTHOR]

[Objective] This paper aimed to explore occurrence status and species of root knot nematodes in kiwifnjit orchards and lay a foundation for control of Meloidogyne incognita in Xiuwen county, Guizhou. [Method]The morphology, rDNA-ITS and specific sequence of root knot nematodes collected from main producing region of kiwifnjit in Xiuwen county were analyzed and identified. [Result] The perineal pattern of female root knot nematode adult had a high and square-shaped dorsal arch composed of wavy smooth lines from thin to thick and some lines were bifurcated on the side without an obvious lateral line. The similarity between sequence of specific amplified fragment and sequence of Meloidogyne incognita in NCBI Database (Accession number ;JN005841. 1. 1) reached 100 %,which indicated that the root knot nematode belonged to Meloidogyne incognita. [Conclusion] The root knot nematode endangering kiwifruit is Meloidogyne incognita mainly in Xiuwen county, Guizhou. [ABSTRACT FROM AUTHOR]