韶关森林质量精准提升的树种选择与配置研究OA

This study employed a method combining data collection and field investigation,taking the afforestation projects in seven counties(cities)of Shaoguan City from 2023 to 2025 as the research object,and systematically analyzed the diversity of afforestation tree species,their configuration structure,and the potential ecological risks.The results showed that Shaoguan City has a rich resource of afforestation tree species,with particularly prominent endowment of native and rare and endangered tree species.However,in actual afforestation,the tree species configuration shows a highly concentrated trend,with Schima superba,Liquidambar formosana,Camellia oleifera,Castanopsis hystrix and Acacia melanoxylon accounting for 74.54%of the total seedlings used,indicating a significant homogenization problem in the regional afforestation structure.Although the resources of precious native tree species are abundant,their large-scale application is still insufficient due to constraints such as insufficient seedling supply,incomplete supporting cultivation techniques,and long growth cycles.Although the current afforestation model is gradually developing towards multi-species mixed planting,there is still room for improvement in functional and near-natural configuration.Therefore,it is suggested that in the future,the selection of tree species should shift from"concentration"to"diversification,adaptation and functionalization",strengthen the scientific utilization of native tree species resources,and actively build multi-layered mixed forests to enhance the stability and multi-functionality of forest ecosystems,thereby providing theoretical basis and practical reference for the precise improvement of forest quality in the Nanling Mountains of northern Guangdong.