DOI: 10.1016/j.foreco.2015.02.012
Scopus记录号: 2-s2.0-84923328628
论文题名: Soil-vegetation type, stem density and species richness influence biomass of restored woodland in south-western Australia
作者: Perring M.P. ; Jonson J. ; Freudenberger D. ; Campbell R. ; Rooney M. ; Hobbs R.J. ; Standish R.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 344 起始页码: 53
结束页码: 62
语种: 英语
英文关键词: Biodiverse carbon planting
; Carbon sequestration
; Carbon stock
; Environmental planting
; Eucalypt woodland
; Functional diversity
Scopus关键词: Biomass
; Carbon
; Commerce
; Cost benefit analysis
; Cost effectiveness
; Ecosystems
; Forestry
; Nitrogen fixation
; Plants (botany)
; Regression analysis
; Restoration
; Seed
; Soils
; Vegetation
; Biodiverse carbon planting
; Carbon sequestration
; Carbon stocks
; Environmental planting
; Eucalypt woodland
; Functional diversity
; Ecology
; allometry
; biomass
; carbon sequestration
; demand analysis
; ecosystem service
; evergreen tree
; native species
; restoration ecology
; soil type
; species richness
; vegetation cover
; vegetation type
; woodland
; Australia
; Eucalyptus occidentalis
英文摘要: Woody plantings are increasing across the globe to satisfy ecosystem service markets for carbon and ecological restoration. Assessments of these complex woody systems typically use coarse-scale parameters, based on the climate and soil type of a region, and/or remotely assessed vegetation cover, to estimate carbon in their above- and belowground biomass. However it remains poorly known what factors influence their biomass at finer scales. Here, we investigated biomass variability after five years across a 250ha environmental planting on a former agricultural property in south-western Australia. We aimed to understand which factors may influence observed biomass variability. The dominant canopy tree, Eucalyptus occidentalis, was planted as seedlings, and other woody species were direct sown in vegetation associations, according to soil type and landscape position, to reflect historic native assemblages. Results from 42 survey plots stratified across these associations showed variable seedling establishment from the seed mix, and that the amount of above- and belowground biomass varied widely (Coefficient of variation=60%). A site mean and standard error were inadequate to capture biomass distribution. Instead, two modes were evident within the distribution at approximately 5Mgha-1 and 15Mgha-1 with variation primarily associated with differential seedling establishment and growth across the vegetation associations. Additionally, multiple regression analysis showed that stem density explained a significant amount of biomass variation whilst greater species richness was associated with increased biomass once stem density had been accounted for - models combining soil-vegetation association, number of individuals, and species richness explained between 60% and 80% of biomass variation depending on the response variable (total or live biomass) and choice of allometric equations to predict biomass. There was some evidence for a role of nitrogen-fixing species in determining biomass variation. There was no evidence for biomass variation being explained by the proportional contribution of the dominant canopy tree (E. occidentalis) or eucalypts in general once number of individuals had been accounted for, despite their large contribution to plot biomass. The substantial variation we show across the site has implications for carbon accounting practices and cost-benefit analyses guiding investment and regulation of the sector. Our results add weight to emerging evidence that restoring woody plant diversity can be compatible with efforts to maximize biomass and show the potential for diverse restored woodland assemblages to meet developing market demands for carbon. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65489
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Plant Biology, The University of Western Australia, Crawley, WA, Australia; Threshold Environmental, PO Box 1124, Albany, WA, Australia; Centre of Excellence in Natural Resource Management, The University of Western Australia, Albany, WA, Australia; Fenner School of Environment and Society, Australian National University, Canberra, ACT, Australia; Carbon Interactions, Canberra, ACT, Australia; School of Veterinary and Life Sciences, Murdoch University, 90 South Street, Murdoch, WA, Australia
Recommended Citation:
Perring M.P.,Jonson J.,Freudenberger D.,et al. Soil-vegetation type, stem density and species richness influence biomass of restored woodland in south-western Australia[J]. Forest Ecology and Management,2015-01-01,344