Reference : Can tree species richness attenuate the effect of drought on organic matter decomposi...
Scientific journals : Article
Life sciences : Environmental sciences & ecology
Life sciences : Phytobiology (plant sciences, forestry, mycology...)
http://hdl.handle.net/2268/228857
Can tree species richness attenuate the effect of drought on organic matter decomposition and stabilization in young plantation forests?
English
Rahman, Md Masudur mailto [Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Ecologie végétale et microbienne >]
Castagneyrol, Bastien []
Verheyen, Kris []
Jactel, Hervé []
Carnol, Monique mailto [Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Ecologie végétale et microbienne >]
2018
Acta Oecologica
Elsevier
93
30-40
Yes (verified by ORBi)
International
1146-609X
1873-6238
Netherlands
[en] FORBIO ; ORPHEE ; TreeDivNet ; Rainfall manipulation ; Carbon turnover ; Tea Bag Index (TBI)
[en] Changes in precipitation due to climate change are likely to influence soil organic matter (SOM) decomposition and stabilization. In forests, increased tree species diversity could modulate the effects of drought on SOM decomposition and stabilization. We addressed this issue by a decomposition study under simulated drought (through precipitation reduction at Zedelgem, Belgium) and natural drought (ORPHEE, southern France) in young experimental plantations (tree species richness 1 to 5). In Zedelgem, the study focused on tree species richness around oak and beech trees. Two tea bag indices (TBI) – decomposition rate (k) and stabilization factor (S) – were calculated by measuring the decay of green and rooibos tea in soils. Overall, TBI's were higher in Zedelgem than at ORPHEE. In Zedelgem, k increased with tree species richness under drought around oak, indicating that tree species richness modulated the effects of drought on decomposition. Under beech, k de- creased with drought while no effect of tree species richness was detected. S increased with drought under both oak and beech, without any effect of tree species richness. In ORPHEE, we did not detect any tree species richness effect on both TBIs. S decreased significantly, while k was marginally reduced under drought. The higher S under drought in Zedelgem and under control in OPRHEE suggests that the carbon sequestration po- tential under climate change would be dependent on the environmental context. Further, in young plantations, high species richness may modulate the drought effect on SOM decomposition, but not on stabilization.
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
ForbioClimate
Researchers
http://hdl.handle.net/2268/228857
10.1016/j.actao.2018.10.008

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Rahman et al. - 2018 - Does tree species richness attenuate the effect of experimental irrigation and drought on decomposition rate in y.pdfPublisher postprint2.03 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.