亚热带低效林提质增效关键技术集成与推广与应用评价书

本项目历时10年研发出4项亚热带低效林改良技术：近自然改造、杉阔混交、萌芽杉混交木荷及次生林改良。应用后使杉木胸径增长11.29%、树高提升9.42%、碳汇增加20.1-24.6%、蓄积量提高15-107%。已在赣皖两地建成7.26万亩示范林，创造经济效益8000万元，培训820名技术人员，为区域林业可持续发展提供了重要技术方案。

This project developed four low-efficiency subtropical forest improvement technologies over a 10-year research period: close-to-nature transformation, mixed planting of Chinese fir and broad-leaved trees, mixed planting of sprouted Chinese fir and Schima superba, and secondary forest improvement. Field applications have shown that these technologies increase the diameter at breast height (DBH) of Chinese fir by 11.29%, tree height by 9.42%, carbon sequestration by 20.1–24.6%, and standing stock volume by 15–107%. A total of 72,600 mu of demonstration forests have been established in Jiangxi and Anhui provinces, generating an economic benefit of 80 million yuan, and 820 technical personnel have been trained. This work provides an important technical solution for the sustainable development of regional forestry.