文献类型：期刊文献

英文题名：Spatial patterns of correlation between conspecific species and size diversity in forest ecosystems

作者：Wang, Hongxiang[1] Zhang, Xiaohong[2] Hu, Yanbo[3] Pommerening, Arne[4]

第一作者：Wang, Hongxiang

通信作者：Zhang, XH[1];Hu, YB[2]

机构：[1]Guangxi Univ, Coll Forestry, Nanning 530004, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forest Resource Informat Tech IFRIT, Key Lab Forest Management & Growth Modelling, NFGA, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, Natl Forestry & Grassland Adm, Box 1958, Beijing 100091, Peoples R China;[4]Swedish Univ Agr Sci SLU, Fac Forest Sci, Dept Forest Ecol & Management, Skogsmarksgrand 17, SE-90183 Umea, Sweden

年份：2021

卷号：457

外文期刊名：ECOLOGICAL MODELLING

收录：;EI(收录号：20213310778288);Scopus(收录号：2-s2.0-85112436524);WOS:【SCI-EXPANDED(收录号:WOS:000687767000004)】；

基金：H.W. received funding from the Science and Technology Base and Talent Project of Guangxi (No. AD20297051 ), and by Guangxi Innovation Driven Development Project (No. AA17204087-8 ). X.Z. was supported by the National Key R&D Programme of China ( 2017YFC0504101 ).

语种：英文

外文关键词：Mingling-size hypothesis; Diversity indices; Correlation space; Neighbourhood indices; Size dominance; Forest development stage; Diversity loss

摘要：Recently correlations between spatial species and size diversity have been found in many forest ecosystems around the world. They are likely to play a prominent role in nature's mechanisms of maintaining species and size diversity. In this study, we analysed the species population means of spatial species-mingling and sizeinequality indices in 36 large forest monitoring plots from the temperate and subtropical zones in China. Based on the literature we included eleven diversity-index combinations and considered their correlations for increasing numbers of nearest neighbours. Generally, positive correlations are related to between-species population size differences whilst negative correlations reflect within-species population size differences. Our results showed that the selected species-mingling and size-inequality indices produced different correlation patterns in one and the same monitoring site. We therefore defined a species-mingling size-inequality correlation space by computing the 0.025 and the 0.975 quantiles from the correlation data of the eleven index combinations. We noticed that each observed correlation space included 1-3 combinations of five basic geometric types and can be interpreted as the unique signature of a forest ecosystem in time. The correlation space allowed us to understand more clearly at which spatial scale within-species correlation was more influential than between-species inequality and vice versa. The shape of the correlation space is interpretable and gives important clues about the forest development stage of a forest ecosystem.