Abstract
The home-field advantage (HFA) effect has been reported to occur in coarse woody debris (CWD) and litter. It is thought that the HFA effect may be due to the specialization of decomposers in their original habitats. However, the relative contribution of microorganisms, particularly fungi and bacteria, to deadwood decomposition is unclear because of differences in their functional at-tributes and carbon requirements, and the microorganisms that drive the HFA effect of deadwood are also unclear. Here, we analysed a dataset of microbial PLFA and substrate properties collected from the soil and CWD of two subtropical trees, Cryptomeria japonica and Platycarya strobilacea, from forests dominated by one or the other of the two species, with both species present in the forests. Our results showed that habitat and tree types all significantly affected CWD respiration rates, the CWD respiration rates were significantly higher in the deciduous broadleaf forests (DBF) than in the coniferous forest (CF) regardless of tree types, but no a large HFA of CWD decomposition found (HFA index was 4.75). Most biomarkers indicated bacteria and fungi were more abundant in the DBF than in the CF, and the concentration of microbial PLFAs was higher in Platycarya strobilacea than in Cryptomeria japonica. In addition, the relative abundance of fungi and soil B/F were remarkably positively correlated with CWD respiration, indicating that fungi may be the primary decomposers of CWD. In conclusion, our work highlights the importance of interactions between the three primary drivers (environment, substrate quality and microbes) on CWD decomposition.
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Claims 8
Claim · model-written summary
Habitat and tree type significantly affected coarse woody debris respiration.
- Taxon
- Cryptomeria japonica and Platycarya strobilacea
Cryptomeria japonica
Platycarya strobilaceae1 - Outcome
- CWD respiration ratese0
- Setting
- habitate0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“habitat and tree types all significantly affected CWD respiration rates”
e1“Cryptomeria japonica and Platycarya strobilacea”
Claim · model-written summary
Debris respiration was higher in deciduous broadleaf than coniferous forest.
- Taxon
- Cryptomeria japonica and Platycarya strobilaceaCryptomeria japonicaPlatycarya strobilaceae1
- Outcome
- CWD respiration ratese0
- Direction
- highere0
- Comparator
- coniferous forest (CF)e0
- Setting
- deciduous broadleaf forests (DBF)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the CWD respiration rates were significantly higher in the deciduous broadleaf forests (DBF) than in the coniferous forest (CF) regardless of tree types”
e1“Cryptomeria japonica and Platycarya strobilacea”
Claim · model-written summary
Woody debris decomposition showed little home-field advantage.
- Taxon
- Cryptomeria japonica and Platycarya strobilaceaCryptomeria japonicaPlatycarya strobilaceae1
- Outcome
- HFA of CWD decompositione0
- Value
- 4.75e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no a large HFA of CWD decomposition found (HFA index was 4.75)”
e1“Cryptomeria japonica and Platycarya strobilacea”
Claim · model-written summary
Bacteria and fungi biomarkers were more abundant in deciduous broadleaf forest.
- Taxon
- Cryptomeria japonica and Platycarya strobilaceaCryptomeria japonicaPlatycarya strobilaceae1
- Outcome
- bacteria and fungie0
- Direction
- more abundante0
- Comparator
- CFe0
- Setting
- DBFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most biomarkers indicated bacteria and fungi were more abundant in the DBF than in the CF”
e1“Cryptomeria japonica and Platycarya strobilacea”
Claim · model-written summary
Microbial PLFA concentration was higher in Platycarya than Cryptomeria debris.
- Taxon
- Platycarya strobilaceaPlatycarya strobilaceae0
- Outcome
- concentration of microbial PLFAse0
- Direction
- highere0
- Comparator
- Cryptomeria japonicae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentration of microbial PLFAs was higher in Platycarya strobilacea than in Cryptomeria japonica”
Claim · model-written summary
Fungal relative abundance correlated positively with debris respiration.
- Taxon
- Cryptomeria japonica and Platycarya strobilaceaCryptomeria japonicaPlatycarya strobilaceae1
- Outcome
- CWD respiratione0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relative abundance of fungi and soil B/F were remarkably positively correlated with CWD respiration”
e1“Cryptomeria japonica and Platycarya strobilacea”
e2“fungi may be the primary decomposers”
Claim · model-written summary
Soil bacterial-to-fungal ratio correlated positively with debris respiration.
- Taxon
- Cryptomeria japonica and Platycarya strobilaceaCryptomeria japonicaPlatycarya strobilaceae1
- Outcome
- CWD respiratione0
- Direction
- positively correlatede0
- Setting
- soil B/Fe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relative abundance of fungi and soil B/F were remarkably positively correlated with CWD respiration”
e1“Cryptomeria japonica and Platycarya strobilacea”
Claim · model-written summary
The authors infer that fungi may be primary decomposers of woody debris.
- Taxon
- Cryptomeria japonica and Platycarya strobilaceaCryptomeria japonicaPlatycarya strobilaceae1
- Outcome
- primary decomposers of CWDe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fungi may be the primary decomposers of CWD”
e1“Cryptomeria japonica and Platycarya strobilacea”