DOI: 10.1016/j.foreco.2015.10.035
Scopus记录号: 2-s2.0-84945974747
论文题名: Cover density recovery after fire disturbance controls landscape aboveground biomass carbon in the boreal forest of eastern Canada
作者: Irulappa Pillai Vijayakumar D.B. ; Raulier F. ; Bernier P. ; Paré D. ; Gauthier S. ; Bergeron Y. ; Pothier D.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 360 起始页码: 170
结束页码: 180
语种: 英语
英文关键词: Aboveground biomass carbon
; Boreal forest
; Random forest
; Successional dynamics
; Time-since-last-fire
Scopus关键词: Biomass
; Budget control
; Decision trees
; Above ground biomass
; Boreal forests
; Dominant mechanism
; Eastern Canada
; Environmental factors
; Fire disturbance
; Random forests
; Spatial variability
; Fires
; aboveground biomass
; boreal forest
; carbon budget
; disturbance
; environmental factor
; fire history
; spatial variation
; succession
; Canada
英文摘要: In existing carbon budget models, carbon stocks are not explicitly related to forest successional dynamics and environmental factors. Yet time-since-last-fire (TSLF) is an important variable for explaining successional changes and subsequent carbon storage. The objective of this study was to predict the spatial variability of aboveground biomass carbon (ABC) as a function of TSLF and other environmental factors across the landscape at regional scales. ABC was predicted using random forest models, both at the sample-plot level and at the scale of 2-km2 cells. This cell size was chosen to match the observed minimum fire size of the Canadian large fire database. The percentage variance explained by the empirical sample-plot level model of ABC was 50%. At that scale, TSLF was not significantly related to ABC. At the 2-km2 scale, ABC was influenced mainly by the proportions of cover density classes, which explained 83% of the variance. Changes in cover density were related to TSLF at the same 2-km2 scale, indicating that the increase in cover density following fire disturbance is a dominant mechanism through which TSLF acts upon ABC at the scale of landscapes. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65182
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centre d'Étude de la Forêt, and Faculté de foresterie, De géographie et de géomatique, Université Laval, 2405 rue de la Terrasse, Québec, QC, Canada; Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du P.E.P.S., P.O. Box 10380, Sainte-Foy Stn., Québec, QC, Canada; Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, 445 boulevard de l'Université, Rouyn-Noranda, QC, Canada
Recommended Citation:
Irulappa Pillai Vijayakumar D.B.,Raulier F.,Bernier P.,et al. Cover density recovery after fire disturbance controls landscape aboveground biomass carbon in the boreal forest of eastern Canada[J]. Forest Ecology and Management,2016-01-01,360