Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.07.044 |
Dynamics of detrital carbon pools following harvesting of a humid eastern Canadian balsam fir boreal forest | |
Senez-Gagnon, Fanny1; Thiffault, Evelyne2; Pare, David3; Achim, Alexis2; Bergeron, Yves1,4 | |
2018-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 430页码:33-42 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Forest management strongly influences the carbon (C) budget of boreal forests and their potential to mitigating greenhouse gas emissions. A better quantification of the net changes of carbon pools with time since harvesting is necessary to guide the development of climate-friendly forest management practices. The objective of this study was to assess the evolution of forest C pools, with a special focus on detrital biomass, in an 80-year post harvesting chronosequence consisting of 36 very homogenous stem-only harvested plots from a humid boreal balsam fir forest of eastern Canada. Dead wood C stocks comprised of snags, stumps, downed woody debris and buried wood averaged 37 Mg C ha(-1) and evolved according to an upward-facing "boomerang" shape pattern throughout the chronosequence (rapid decrease in the first years followed by a constant increase until the end of the time horizon). In contrast, soil C stocks (FH and mineral) averaged 156 Mg C ha(-1) and remain constant through time. Stand C sequestration increased rapidly in the early stages up to age 50 when it reached about 250 Mg C ha(-1), and then continued to accumulate at a slower rate. The temporal trends observed in C pools suggest that C originating from aboveground dead wood (snags, stumps, downed woody debris) is either leaving the system (respired or leached) or transferred into buried wood, and does not appear to influence the C stocks of the fine fraction of the organic and mineral soil horizons. However, the ultimate fate of dead wood C is still poorly understood and further research is needed in this field. We recommend fixing the length of harvest rotation at a minimum of 50 years for this ecosystem to allow the build-up of its dead wood capital, and to promote dead wood retention on site. We also recommend including buried wood in carbon inventories as this pool represents an important share of the detrital C stock in these humid boreal forests. |
英文关键词 | Carbon pools Time since harvest Chronosequence Carbon transfer Dead wood Buried wood Forest soil |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000449137300004 |
WOS关键词 | COARSE WOODY DEBRIS ; AGE-RELATED DECLINE ; MINERALIZATION RATES ; NUTRIENT DYNAMICS ; MANAGING FORESTS ; CLIMATE-CHANGE ; STAND AGE ; GROWTH ; TEMPERATE ; BIOMASS |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22987 |
专题 | 气候变化 |
作者单位 | 1.Univ Quebec Montreal, Ctr Forest Res, Ctr Ville Stn, POB 8888, Montreal, PQ H3C 3P8, Canada; 2.Univ Laval, Renewable Mat Res Ctr, 2425 Rue Terrasse,Gene H Kruger Bldg, Quebec City, PQ G1V 0A6, Canada; 3.Laurentian Forestry Ctr, Canadian Forest Serv, Nat Resources Canada, 1055 PEPS,POB 10380, Quebec City, PQ, Canada; 4.Univ Quebec Abitibi Temiscamingue, Forest Res Inst, NSERC UQAT UQAM Ind Chair Sustainable Forest Mana, 445 Univ Blvd, Rouyn Noranda, PQ J9X 5E4, Canada |
推荐引用方式 GB/T 7714 | Senez-Gagnon, Fanny,Thiffault, Evelyne,Pare, David,et al. Dynamics of detrital carbon pools following harvesting of a humid eastern Canadian balsam fir boreal forest[J]. FOREST ECOLOGY AND MANAGEMENT,2018,430:33-42. |
APA | Senez-Gagnon, Fanny,Thiffault, Evelyne,Pare, David,Achim, Alexis,&Bergeron, Yves.(2018).Dynamics of detrital carbon pools following harvesting of a humid eastern Canadian balsam fir boreal forest.FOREST ECOLOGY AND MANAGEMENT,430,33-42. |
MLA | Senez-Gagnon, Fanny,et al."Dynamics of detrital carbon pools following harvesting of a humid eastern Canadian balsam fir boreal forest".FOREST ECOLOGY AND MANAGEMENT 430(2018):33-42. |
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