The role of decaying logs in nursing soil fungal diversity varies with decay classes in the forest ecosystem
Wang, Qin (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Tan, Bo (Sichuan Agricultural University. Institute of Ecology and Forestry)
Wang, Zhuang (Sichuan Agricultural University. Institute of Ecology and Forestry)
Li, Han (Sichuan Agricultural University. Institute of Ecology and Forestry)
Cao, Rui (Sichuan Agricultural University. Institute of Ecology and Forestry)
Chang, Chenhui (Peking University. College of Urban and Environmental Sciences)
Jiang, Yurui (Sichuan Agricultural University. Institute of Ecology and Forestry)
Yang, Wanqin (Taizhou University. School of Life Science)

Data:	2022
Resum:	Soil fungi are crucial drivers of log decomposition in forest ecosystems, buthow soil fungal community composition varies during the process of logdecomposition remains poorly understood. We conducted an experiment incu-bating decaying logs in a subalpine coniferous forest on the eastern Qinghai-Tibet Plateau, China. Five classes of decaying Minjiang fir (Abies faxoniana)logs were incubated on the forest floor, and the composition and diversity offungal communities in soils underneath decaying logs were measured usinghigh-throughput sequencing. A total of 4321 operational taxonomic units(OTUs) were detected by Illumina NovaSeq sequencing analysis. Soil fungaldiversity differed significantly during the process of log decomposition andwas highest in decay classes III or IV. Basidiomycota and Ascomycota weredominant phyla regardless of log decay classes. Moreover, the proportion ofarbuscular mycorrhiza, wood saprotroph and saprotrophs increased during theprocess of log decomposition, but that of ectomycorrhiza decreased. The struc-ture of soil fungal community underneath decaying logs varied greatly withdecay classes. Different decay classes of logs favour special fungal groups,implying that the ecological effects of logs at differing decay classes on soil fun-gal communities were different.
Ajuts:	Agencia Estatal de Investigación PID2019-110521GB-I00
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Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Abies faxoniana ; Coarse woody debris ; Community composition ; Functional group ; Soil fungal ; Subalpine forest
Publicat a:	European journal of soil science, Vol. 73, Issue 3 (May-June 2022) , e13243, ISSN 1365-2389

DOI: 10.1111/ejss.13243

Postprint 27 p, 732.2 KB

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