摘要
【目的】探究浙江省公益林生物多样性和立地因子对生物量的影响,研究公益林群落结构的稳定性。【方法】依托浙江省3个县的公益林调查数据,探索10个土壤和地形因子(土壤吸湿水、土壤pH、土壤有机质、土壤速效氮、土壤速效磷、土壤速效钾、海拔、坡度、坡向和土壤厚度)以及生物多样性(物种丰富度和谱系多样性)对3种森林类型(针叶林、针阔混交林和阔叶林)生物量的影响。【结果】谱系多样性较物种丰富度能更好地区分森林类型,其中阔叶林和混交林有较高的生物多样性,针叶林则拥有高生物量。仅考虑单独因子的作用,谱系多样性(P=0.041)和物种丰富度(P<0.001)在阔叶林中对生物量有显著的积极影响;而考虑环境因子的效应时,物种丰富度、谱系多样性、土壤速效氮、土壤厚度和土壤吸湿水对阔叶林中的生物量具有显著影响(P<0.05),土壤厚度和土壤酸碱度对针叶林的生物量具有显著影响(P<0.05)。谱系多样性在环境因子的共同作用下对生物量有消极影响。【结论】生物多样性和环境因素共同影响浙江公益林的生物量。在未来公益林的经营中,应对不同森林类型采取相应的措施,增加针阔混交林和针叶林的土壤肥力,改善阔叶林的物种结构,以期更好地维持和提升公益林的生态系统功能。图2表2参44。
[Objective] This research aims to explore the impact of biodiversity and site factors on biomass of public welfare forest in Zhejiang Province, and to study the stability of its community structure. [Method]Based on the survey data of public welfare forest from three counties in Zhejiang, the effects of ten soil and terrain factors(soil hygroscopic water, soil pH, soil organic matter, soil available nitrogen, soil available phosphorus, soil available potassium, altitude, slope, aspect and soil thickness) and biodiversity(species richness and phylogenetic diversity) on the biomass of three forest types(coniferous forest, coniferous and broad-leaved mixed forest, and broad-leaved forests) were explored. [Result] Compared with species richness,phylogenetic diversity was better to distinguish forest types, in which broad-leaved forest and mixed forest had higher biodiversity, and coniferous forest had higher biomass. When only considering the effects of individual factors, phylogenetic diversity(P=0.041) and species richness(P<0.001) were significantly and positively correlated with biomass in broad-leaved forests. When considering the effects of environmental factors, species richness, phylogenetic diversity, soil available nitrogen, soil thickness and soil hygroscopic water had significant effects(P<0.05) on biomass of broad-leaved forests, while soil thickness and soil pH had significant effects(P<0.05) on biomass of coniferous forests. Phylogenetic diversity was negatively correlated with biomass due to the joint effect of environmental factors. [Conclusion] Environmental factors and biodiversity jointly affect the biomass of public welfare forest in Zhejiang Province. In the future management of public welfare forest, measures should be taken to increase soil fertility of coniferous and broad-leaved mixed forest,and improve the species structure of broad-leaved forest, so as to better maintain and enhance the ecosystem function of public welfare forest. [Ch, 2 fig. 2 tab. 44 ref.]
作者
金超
李领寰
吴初平
姚良锦
朱锦茹
袁位高
江波
焦洁洁
JIN Chao;LI Linghuan;WU Chuping;YAO Liangjin;ZHU Jinru;YUAN Weigao;JIANG Bo;JIAO Jiejie(College of Forestry and Biotechnology,Zhejiang A&F University,Hangzhou 311300,Zhejiang,China;Zhejiang Academy of Forestry,Hangzhou 310023,Zhejiang,China;East China Inventory and Planning Institute,National Forestry and Grassland Administration,Hangzhou 310019,Zhejiang,China;Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Research Institute of Forest Ecology,Environment and Protection,Chinese Academy of Forestry,Beijing 100091,China)
出处
《浙江农林大学学报》
CAS
CSCD
北大核心
2021年第6期1083-1090,共8页
Journal of Zhejiang A&F University
基金
浙江省省属科研院所扶持专项(2019F065-6)。
关键词
森林生态学
谱系多样性
物种丰富度
生物量
环境因子
森林类型
公益林
forest ecology
phylogenetic diversity
species richness
biomass
environment factors
forest type
public welfare forest
