生态学报2017，Vol.37Issue(6)：1922-1930,9.DOI:10.5846/stxb201510272172
吉林蛟河针阔混交林树木生长的空间关联格局
Spatial autocorrelation patterns of tree growth in a coniferous and broad-leaved mixed forest in Jiaohe of Jilin province
摘要
Abstract
This study aimed to determine the spatial autocorrelation patterns of tree growth and the mechanisms influencing habitat heterogeneity.A dataset of observed forest growth was used,with data between 2009 and 2014 from a 21.12 hm2 stem-mapped mixed forest plot (temperate coniferous and broadleaved forest) in Jiaohe,Jilin Province.Based on habitat type classifications,Ripley's L(r) function was adopted to evaluate the spatial distribution characteristics of tree locations.A mark correlation function (MCF) was used to evaluate the spatial autocorrelation characteristics of tree growth.Our results showed that (1) Pinus koraiensis (habitat type 3 ∶ 1-5 m),Quercus mongolica (habitat type 3 ∶ 1-3 m),Juglans mandshurica (habitat type 2 ∶ 1-2 m;habitat type 3 ∶ 1-7 m),Phellodendron amurense (habitat type 2 ∶ 1-3 m;habitat type 4∶1-5 m),Fraxinus mandshurica (habitat type 3∶1-2 m;habitat type 4∶1-2 m),and Euonymus verrucosus (habitat type 2∶1-15 m) were randomly distributed at particular scales and for certain habitat types.Nonetheless,they mainly showed clumped distribution patterns.For ten other species,the spatial distribution of tree positions showed an aggregated pattern at a scale of 0-30 m.(2) The mark correlation function analysis indicated that the radial growth of Ulmus davidiana var.japonica,Corylus mandshurica,Acer mono,E.verrucosus,and Carpinus cordata were positively autocorrelated for at least one of the habitat types.In contrast,the radial growth of Syringa reticulata var.amurensis,J.mandshurica,Ulmus laciniata,E.verrucosus,F.mandshurica,Tilia amurensis,Tilia mandshurica,C.mandshurica,A.mono,and Acer mandshuricum were negatively autocorrelated at least in one of habitat types.Other species did not show any significant autocorrelations at any of the studied scales.Our results indicate that different species had different spatial autocorrelation characteristics of radial growth,as well as significantly different habitat dependencies.关键词
径向生长/生境差异/竞争作用/生境依赖性/Ripley's L(r)函数Key words
radius growth/habitat differentiation/competition effect/habitat dependency/Ripley's L(r) function引用本文复制引用
郝珉辉,张忠辉,赵珊珊,张春雨,赵秀海..吉林蛟河针阔混交林树木生长的空间关联格局[J].生态学报,2017,37(6):1922-1930,9.基金项目
国家林业公益性行业科研专项项目(201204309) （201204309）
教育部新世纪优秀人才支持计划项目(NCET-12-0781) （NCET-12-0781）
国家自然科学基金项目(31200315) （31200315）
