DOI: 10.1016/j.ecoinf.2020.101054
论文题名: Spatial size diversity in natural and planted forest ecosystems: Revisiting and extending the concept of spatial size inequality
作者: Wang H. ; Zhao Z. ; Myllymäki M. ; Pommerening A.
刊名: Ecological Informatics
ISSN: 15749541
出版年: 2020
卷: 57 语种: 英语
英文关键词: Point process statistics
; Reconstruction
; Size diversity maintenance
; Species-rich woodland community
; Temperate and subtropical forest ecosystems
Scopus关键词: cluster analysis
; forest ecosystem
; global change
; plantation forestry
; spatial analysis
; species richness
; subtropical region
; woodland
; China
英文摘要: Plant size diversity or plant size inequality is a much neglected aspect of plant diversity and biodiversity. And yet size diversity plays an important role in understanding the dynamics of plant diversity and natural mechanisms of maintaining plant diversity, which is of great significance in a time of ongoing global changes. In this study, we introduced and investigated a new measure of spatial size inequality, namely the size segregation function. The new characteristic depends on distance and turned out to be a meaningful and more general extension of the traditional size differentiation index, because it describes local size inequality more extensively. To test the size segregation function we analysed and modelled thirteen large, fully mapped plots from temperate and subtropical forest ecosystems in China. We tested and validated the new function through cluster analysis and a special variant of partial spatial reconstruction. Our results showed that the size segregation function discriminated well between different patterns of spatial size diversity in the complex, mostly natural forests of China. Two random-labelling tests used in the study also highlighted how closely linked spatial species and size diversity are in such species-rich forest ecosystems: Often each species represents a distinctive size range and then spatial size inequality can be interpreted as being a consequence of spatial species mingling. This close relationship between species and size should also be taken into account in analyses of species-rich plant populations. For practical conservation this implies that high size inequality can often be found where there is high species mingling and vice versa. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158259
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: College of Forestry, Guangxi University, Nanning, 530004, China; Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation of National Forestry and Grassland Administration, Box 1958, Beijing, 100091, China; Natural Resources Institute Finland (Luke), Latokartanonkaari 9, Helsinki, FI-00790, Finland; Swedish University of Agricultural Sciences SLU, Faculty of Forest Sciences, Department of Forest Ecology and Management, Skogsmarksgränd 17, Umeå, SE-901 83, Sweden
Recommended Citation:
Wang H.,Zhao Z.,Myllymäki M.,et al. Spatial size diversity in natural and planted forest ecosystems: Revisiting and extending the concept of spatial size inequality[J]. Ecological Informatics,2020-01-01,57