DOI: 10.1016/j.foreco.2017.06.032
Scopus记录号: 2-s2.0-85024486393
论文题名: Contribution of climate vs. larch budmoth outbreaks in regulating biomass accumulation in high-elevation forests
作者: Peters R.L. ; Klesse S. ; Fonti P. ; Frank D.C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 401 起始页码: 147
结束页码: 158
语种: 英语
英文关键词: Climate change
; European Alps
; Forest biomass
; Insect outbreak
; Long-term growth change
; Tree-ring analysis
; Zeiraphera diniana
Scopus关键词: Biomass
; Climate change
; Climate models
; Ecology
; European Alps
; Forest biomass
; Insect outbreaks
; Long-term growths
; Tree-ring analysis
; Zeiraphera diniana
; Forestry
; Hexapoda
; Larix decidua
; Picea abies
; Zeiraphera diniana
英文摘要: Forest growth and biomass response to environmental change depends upon climatic, but also upon interactions with biotic drivers, such as insect outbreak activity. In this study we use tree-rings along a temperature gradient to assess the relative importance of climate versus altered larch budmoth (Zeiraphera diniana) outbreak cycles for forest biomass accumulation at high elevations. We established climate-growth relationships and performed outbreak-growth response analysis for >500 individuals from host (Larix decidua) and non-host trees (Picea abies) at different elevations (from 1300 to 2200 m a.s.l.) in the Swiss Alps. We quantified outbreak-induced reductions of absolute biomass increment and modelled effects of the recent absence of outbreaks. Our results reveal that average outbreaks reduced biomass accumulation by 1130 kg ha−1 y−1 during the four years after the event, having an equal or even greater impact on carbon sequestration than climate. Recent growth increases previously observed at the study sites are largely attributable to the outbreaks absence since 1981, suggesting that regular outbreaks have hampered host-trees from realizing their growth potential for centuries. The presented impact analysis quantifies the importance of non-lethal insect activity on forest biomass dynamics, revealing the relevance of including such biotic drivers and their interactions with climate in models assessing the future productivity and carbon sink capacity of forests. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64178
Appears in Collections: 影响、适应和脆弱性
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作者单位: Landscape Dynamics, Swiss Federal Research Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, Birmensdorf, Switzerland; Botanik, Basel University, Schönbeinstrasse 6, Basel, Switzerland; Oeschger Centre for Climate Change Research, Falkenplatz 16, Bern, Switzerland; Laboratory of Tree-Ring Research, 1215 E. Lowell Street, Tucson, AZ, United States
Recommended Citation:
Peters R.L.,Klesse S.,Fonti P.,et al. Contribution of climate vs. larch budmoth outbreaks in regulating biomass accumulation in high-elevation forests[J]. Forest Ecology and Management,2017-01-01,401