Replacing Norway spruce with European beech: A comparison of biomass and net primary production patterns in young stands

被引:22
作者
Konopka, Bohdan [1 ,2 ]
Pajtik, Jozef [1 ,2 ]
Noguchi, Kyotaro [3 ]
Lukac, Martin [4 ]
机构
[1] Natl Forest Ctr, Forest Res Inst, Zvolen, Slovakia
[2] Czech Univ Life Sci, Fac Forestry & Wood Sci, CZ-16521 Prague, Czech Republic
[3] Shikoku Res Ctr, Forestry & Forest Prod Res Inst, Kochi, Japan
[4] Univ Reading, Sch Agr Policy & Dev, Reading RG6 6AR, Berks, England
关键词
NPP; Biomass allocation; Species change; Belowground productivity; Increment; Temperate forest; PICEA-ABIES; CARBON ALLOCATION; DOUGLAS-FIR; FOREST; MECHANISMS; TEMPERATE; ECOSYSTEMS; TURNOVER; GROWTH; BUDGET;
D O I
10.1016/j.foreco.2013.03.026
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
An alteration of species composition in temperate forests - both managed and natural - is one of the expected effects of environmental change. Present forest tree species ranges will be altered by changing environmental conditions. By a combination of continuous and destructive sampling, we compared biomass stocks and annual NPP in naturally regenerated stands of Norway spruce and European beech. We purposely selected a site where future environmental conditions are predicted to favour beech over presently dominant spruce. We found no difference in overall productivity, but biomass allocation differed significantly between the two species. Beech allocated more assimilates to stem and roots than spruce. There was no significant difference between the species in NPP of the fast turnover biomass pool comprising foliage and fine roots. Maximum height growth occurred about a month earlier than in spruce, potentially changing the timing of carbon (C) flow into the soil pools. We show that the replacement of spruce by beech will result in changes in forest biomass allocation and in alterations of belowground C cycle. Such changes will affect forest ecosystem function by modifying the magnitude and timing of certain C fluxes, but also by potentially changing the species composition of forest biota dependent on them. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:185 / 192
页数:8
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