DOI: 10.1016/j.foreco.2014.04.021
Scopus记录号: 2-s2.0-84900036806
论文题名: Combined influence of fire and salvage logging on carbon and nitrogen storage in boreal forest soil profiles
作者: Poirier V. ; Paré D. ; Boiffin J. ; Munson A.D.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 326 起始页码: 133
结束页码: 141
语种: 英语
英文关键词: Black spruce forest
; Salvage logging
; Soil horizons
; Soil organic carbon
; Total soil nitrogen
; Wildfire
Scopus关键词: Biogeochemistry
; Biological materials
; Fires
; Forestry
; Minerals
; Organic compounds
; Black spruce forests
; Salvage logging
; Soil horizon
; Soil nitrogen
; Soil organic carbon
; Wildfire
; Soils
; biogeochemistry
; boreal forest
; disturbance
; fire behavior
; forest soil
; logging (timber)
; sequestration (chemistry)
; soil carbon
; soil nitrogen
; soil organic matter
; soil profile
; wildfire
; Carbon
; Fires
; Forestry
; Minerals
; Nitrogen
; Organic Compounds
; Picea Mariana
; Soil
; Canada
; Quebec [Canada]
英文摘要: Boreal forest soils are a significant component of the global C cycle. Although wildfire and subsequent salvage logging are major disturbances in this ecosystem, their combined influence on soil organic carbon (SOC) and total soil nitrogen (N) storage is poorly understood. Our objective was to investigate the recent influence of fire and post-fire salvage logging on SOC and total soil N stocks and distribution in the profile of boreal forest soils. We measured SOC and total N concentrations, bulk density and pH of organic, surface mineral (0-15. cm depth) and subsurface mineral (15-40. cm depth) soil horizons on 14 different fires (burned 2005-2007) in Quebec, Canada. Each site comprised three treatments: a control stand (CTR), a recently burned (<7. years) stand that was not salvaged logged (B-NL) and a recently burned (<7. years) stand that was salvage logged (B-L) within 2. years after the fire. Our results showed that fire-affected stands had less SOC and total N stored in organic horizons, and that post-fire salvage logging reduced SOC concentration in the organic horizon, but promoted SOC and total N enrichment in the subsurface mineral soil. We conclude that mechanical disturbance of recently burned stands can contribute to the mixing of the forest floor and organic matter with the mineral soil, and influence the depth distribution of SOC and total N in the soil profile. When the entire soil profile was considered, SOC and total N stocks were equivalent in burned versus burned and salvage-logged sites. Further research should focus on how disturbance type and intensity influence the molecular nature of soil organic matter and the mechanisms by which SOC and total soil N are retained in the different soil horizons. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65907
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, Département des sciences du bois et de la forêt, Faculté de foresterie, géographie et géomatique, Université Laval, 2405 de la Terrasse, Québec, QC G1V0A6, Canada; Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Center, 1055 du P.E.P.S., P.O. Box 10380 Stn. Sainte-Foy, Quebec, QC G1V4C7, Canada
Recommended Citation:
Poirier V.,Paré D.,Boiffin J.,et al. Combined influence of fire and salvage logging on carbon and nitrogen storage in boreal forest soil profiles[J]. Forest Ecology and Management,2014-01-01,326