Habitat association and demographic rates for large tree species:implications for native tree species used in forestry  

作　　者：Yue Bin Honglin Cao Diego IRodríguez‑Hernández Zi Wang Chengjin Chu Buhang Li 

机构地区：[1]Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems,Guangdong Provincial Key Laboratory of Applied Botany,South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,People’s Republic of China [2]School of Biological Sciences,University of Bristol,24 Tyndall Avenue,Bristol BS81TQ,UK [3]State Key Laboratory of Biocontrol and School of Life Sciences,Sun Yat-Sen University,Guangzhou 510275,People’s Republic of China

出　　处：《Journal of Forestry Research》2025年第1期139-149,共11页林业研究(英文版)

基　　金：supported by the National Natural Science Foundation of China(31925027,31300455).

摘　　要：Exotic tree species,though widely used in forestry and restoration projects,pose great threats to local ecosystems.They need to be replaced with native species from natural forests.We hypothesized that natural forests contain large,fast-growing,dominant native tree species that are suitable for specific topographic conditions in forestry.We tested this hypothesis using data from a 50-ha forest dynamics plot in subtropical China.We classified the plot into the ridge,slope,and valley habitats and found that 34/87 species had significant associations with at least one topographic habitat.There were 90 tree species with a maximum diameter≥30 cm,and their abundances varied widely in all habitat types.In all habitat types,for most species,rate of biomass gain due to recruitment was<1%of its original biomass,and rate of biomass gain due to tree growth was between 1 and 5%of its original biomass.For most species,biomass loss due to tree mortality was not significantly different than biomass gain due to recruitment,but the resulting net biomass increment rates did not significantly differ from zero.The time required to reach a diameter of 30 cm from 1 cm diameter for Altingia chinensis in the slope habitat,for Quercus chungii and Morella rubra in the ridge habitat and for Castanopsis carlesii in all habitats could be as short as 30 years in our simulations based on actual distributions of tree growth observed in the forest.Principal component analyses of maximum diameter,abundance and net biomass increment rates suggested several species were worthy of further tests for use in forestry.Our study provides an example for screening native tree species from natural forests for forestry.Because native tree species are better for local ecosystems,our study will also contribute to biodiversity conservation in plantations.

关 键 词：Native tree species Growth simulation Timber Wood product Subtropical forest 

分 类 号：S718.5[农业科学—林学]