DOI: 10.1016/j.foreco.2014.06.033
Scopus记录号: 2-s2.0-84904600080
论文题名: Repeated harvest residue removal reduces E. globulus productivity in the 3rd rotation in south-western Australia
作者: Mendham D.S. ; Ogden G.N. ; Short T. ; O'Connell T.M. ; Grove T.S. ; Rance S.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 329 起始页码: 279
结束页码: 286
语种: 英语
英文关键词: Eucalyptus globulus
; Inter-rotation management
; Productivity decline
; Slash management
Scopus关键词: Forestry
; Harvesting
; Productivity
; Soils
; Differential response
; Eucalyptus globulus
; Exchangeable cation
; Long-term experiments
; Plantation forestry
; Plantation productivity
; Renewable energies
; Slash managements
; Rotation
; bioenergy
; clearcutting
; coniferous forest
; forest management
; forestry production
; plantation
; renewable resource
; shifting cultivation
; yield response
; Eucalyptus Globulus
; Forestry
; Harvesting
; Productivity
; Rotation
; Soil
; Australia
英文摘要: The use of biomass for energy is becoming increasingly popular, with many plantation forestry growers considering selling or using the biomass to generate renewable energy. It is known that this may lead to a net export of nutrients from the site, but the capacity of plantation sites to buffer this and sustain yield has not been quantified. In 2 long-term experiments, we explored the impact of repeated residue removal, retention, or retention of double the quantity of residues over 2 rotations of Eucalyptus globulus in south-western Australia. The 2 sites that we used had contrasting soil types, and we previously reported differential responses of plantation productivity to residue manipulation in the 2nd rotation. In this study we have shown that removal of harvest residues (and litter) into a 3rd rotation of E. globulus resulted in a significant impact on plantation productivity at both sites. It is important to note that a response to residue removal occurred even at a site that was highly productive in the first and second rotations, and which did not respond to residue removal or N fertilizer addition in the 2nd rotation. Retention of harvest residues and litter resulted in a significant increase in soil exchangeable cations at the higher productivity site, but the impacts on total soil C and N stocks were not as clear cut, with no significant changes to either of these, although a trend in the means for increased soil C under the residue retained treatments at the Red Earth site should be monitored into the future. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65804
Appears in Collections: 影响、适应和脆弱性
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作者单位: CSIRO Ecosystem Sciences and University of Tasmania, College Road, Sandy Bay 7005, Australia; CSIRO Ecosystem Sciences, Floreat, WA 6913, Australia
Recommended Citation:
Mendham D.S.,Ogden G.N.,Short T.,et al. Repeated harvest residue removal reduces E. globulus productivity in the 3rd rotation in south-western Australia[J]. Forest Ecology and Management,2014-01-01,329