DOI: 10.1016/j.foreco.2016.06.042
Scopus记录号: 2-s2.0-84977627469
论文题名: Carbon and nitrogen pools and mineralization rates in boreal forest soil after stump harvesting
作者: Kaarakka L. ; Hyvönen R. ; Strömgren M. ; Palviainen M. ; Persson T. ; Olsson B.A. ; Launonen E. ; Vegerfors B. ; Helmisaari H.-S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 377 起始页码: 61
结束页码: 70
语种: 英语
英文关键词: Bioenergy
; Forest soil
; Norway spruce
; Soil carbon
; Stump harvest
Scopus关键词: Biomass
; Carbon dioxide
; Forestry
; Harvesting
; Lakes
; Mineralogy
; Nitrogen
; Plants (botany)
; Soil surveys
; Soils
; Bio-energy
; C and N mineralization
; Forest soils
; Intensive forest management
; Norway spruce
; Soil carbon
; Stimulating effects
; Whole tree harvesting
; C (programming language)
; aboveground biomass
; belowground biomass
; bioenergy
; boreal forest
; carbon dioxide
; coniferous tree
; forest management
; forest soil
; mineralization
; soil carbon
; soil nitrogen
; timber harvesting
; tree stump
; Finland
; Keski-Suomi
; Sweden
; Picea abies
英文摘要: The use of forest-derived biomass has steadily increased in Finland and Sweden during the past decades leading to more intensive forest management practices in the region, such as whole-tree harvesting, both above- and belowground. Stump harvesting results in a direct removal of stump and coarse-root carbon (C) from the stand and can cause extensive soil disturbance, which has been suggested to increase C mineralization. In this study, the effects of stump harvesting on soil C and nitrogen (N) mineralization, and soil surface disturbance were studied in two different clear-felled Norway spruce (Picea abies) sites in Central Finland. The treatments were whole-tree harvesting (WTH, removal of stems and logging residues), and WTH and stump harvesting (WTH + S). Both sites, Honkola (2 stands) and Haukilahti (6 stands) were mounded. In both treatments, soil samples were taken from different soil layers down to a total depth of 20 cm in the mineral soil from (i) mounds, (ii) undisturbed soil and (iii) pits. The sampling was performed 11–12 years after treatments. Soil C and N mineralization rates were determined in laboratory incubation experiments. In addition, total C and N pools (g m−2) were estimated for each disturbance class and soil layer. Soil C and N pools had a tendency to be lower following stump harvesting, but no statistically significant treatment effect was detected. Stump harvesting increased soil mixing as indicated by a significant decrease in C concentration in the mound disturbance class. There was no significant effect of stump harvesting on soil C mineralization rates. A combination of mineralization rates and soil pool data showed that field C mineralization (g CO2-C m−2 yr−1) did not significantly differ between stands where stumps were removed or were retained. Further, stump harvesting did not seem to have any stimulating effect on soil CO2 efflux 11–12 years after treatment. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64784
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Department of Forest Sciences, University of Helsinki, P.O. Box 27, Helsinki, Finland; Swedish University of Agricultural Sciences, Department of Ecology, P.O. Box 7044, SE-750 07 Uppsala, Sweden; Swedish University of Agricultural Sciences, Department of Soil and Environment, P.O. Box 7014, SE-750 07 Uppsala, Sweden; Swedish University of Agricultural Sciences, Department of Energy and Technology, Unit of Applied Statistics and Mathematics, P.O. Box 7032, SE-750 07 Uppsala, Sweden
Recommended Citation:
Kaarakka L.,Hyvönen R.,Strömgren M.,et al. Carbon and nitrogen pools and mineralization rates in boreal forest soil after stump harvesting[J]. Forest Ecology and Management,2016-01-01,377