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Water, rather than temperature, dominantly impacts how soil fauna affect dissolved carbon and nitrogen release from fresh litter during early litter decomposition

(2016) FORESTS. 7(10).
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Abstract
Longstanding observations suggest that dissolved materials are lost from fresh litter through leaching, but the role of soil fauna in controlling this process has been poorly documented. In this study, a litterbag experiment employing litterbags with different mesh sizes (3 mm to permit soil fauna access and 0.04 mm to exclude fauna access) was conducted in three habitats (arid valley, ecotone and subalpine forest) with changes in climate and vegetation types to evaluate the effects of soil fauna on the concentrations of dissolved organic carbon (DOC) and total dissolved nitrogen (TDN) during the first year of decomposition. The results showed that the individual density and community abundance of soil fauna greatly varied among these habitats, but Prostigmata, Isotomidae and Oribatida were the dominant soil invertebrates. At the end of the experiment, the mass remaining of foliar litter ranged from 58% for shrub litter to 77% for birch litter, and the DOC and TDN concentrations decreased to 54%-85% and increased to 34%-269%, respectively, when soil fauna were not present. The effects of soil fauna on the concentrations of both DOC and TDN in foliar litter were greater in the subalpine forest (wetter but colder) during the winter and in the arid valley (warmer but drier) during the growing season, and this effect was positively correlated with water content. Moreover, the effects of fauna on DOC and TDN concentrations were greater for high-quality litter and were related to the C/N ratio. These results suggest that water, rather than temperature, dominates how fauna affect the release of dissolved substances from fresh litter.
Keywords
soil fauna, dissolved organic carbon, dissolved nitrogen, subalpine forest, ALPINE FOREST, TERRESTRIAL ECOSYSTEMS, ORGANIC-MATTER, FOLIAR LITTER, RATES, GAPS, PATTERNS, QUALITY, SEQUESTRATION, MANIPULATION

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Citation

Please use this url to cite or link to this publication:

MLA
Liao, Shu, et al. “Water, Rather than Temperature, Dominantly Impacts How Soil Fauna Affect Dissolved Carbon and Nitrogen Release from Fresh Litter during Early Litter Decomposition.” FORESTS, vol. 7, no. 10, 2016.
APA
Liao, S., Ni, X., Yang, W., Li, H., Wang, B., Fu, C., … Wu, F. (2016). Water, rather than temperature, dominantly impacts how soil fauna affect dissolved carbon and nitrogen release from fresh litter during early litter decomposition. FORESTS, 7(10).
Chicago author-date
Liao, Shu, Xiangyin Ni, Wanqin Yang, Han Li, Bin Wang, Changkun Fu, Zhenfeng Xu, Bo Tan, and Fuzhong Wu. 2016. “Water, Rather than Temperature, Dominantly Impacts How Soil Fauna Affect Dissolved Carbon and Nitrogen Release from Fresh Litter during Early Litter Decomposition.” FORESTS 7 (10).
Chicago author-date (all authors)
Liao, Shu, Xiangyin Ni, Wanqin Yang, Han Li, Bin Wang, Changkun Fu, Zhenfeng Xu, Bo Tan, and Fuzhong Wu. 2016. “Water, Rather than Temperature, Dominantly Impacts How Soil Fauna Affect Dissolved Carbon and Nitrogen Release from Fresh Litter during Early Litter Decomposition.” FORESTS 7 (10).
Vancouver
1.
Liao S, Ni X, Yang W, Li H, Wang B, Fu C, et al. Water, rather than temperature, dominantly impacts how soil fauna affect dissolved carbon and nitrogen release from fresh litter during early litter decomposition. FORESTS. 2016;7(10).
IEEE
[1]
S. Liao et al., “Water, rather than temperature, dominantly impacts how soil fauna affect dissolved carbon and nitrogen release from fresh litter during early litter decomposition,” FORESTS, vol. 7, no. 10, 2016.
@article{8530517,
  abstract     = {Longstanding observations suggest that dissolved materials are lost from fresh litter through leaching, but the role of soil fauna in controlling this process has been poorly documented. In this study, a litterbag experiment employing litterbags with different mesh sizes (3 mm to permit soil fauna access and 0.04 mm to exclude fauna access) was conducted in three habitats (arid valley, ecotone and subalpine forest) with changes in climate and vegetation types to evaluate the effects of soil fauna on the concentrations of dissolved organic carbon (DOC) and total dissolved nitrogen (TDN) during the first year of decomposition. The results showed that the individual density and community abundance of soil fauna greatly varied among these habitats, but Prostigmata, Isotomidae and Oribatida were the dominant soil invertebrates. At the end of the experiment, the mass remaining of foliar litter ranged from 58% for shrub litter to 77% for birch litter, and the DOC and TDN concentrations decreased to 54%-85% and increased to 34%-269%, respectively, when soil fauna were not present. The effects of soil fauna on the concentrations of both DOC and TDN in foliar litter were greater in the subalpine forest (wetter but colder) during the winter and in the arid valley (warmer but drier) during the growing season, and this effect was positively correlated with water content. Moreover, the effects of fauna on DOC and TDN concentrations were greater for high-quality litter and were related to the C/N ratio. These results suggest that water, rather than temperature, dominates how fauna affect the release of dissolved substances from fresh litter.},
  articleno    = {249},
  author       = {Liao, Shu and Ni, Xiangyin and Yang, Wanqin and Li, Han and Wang, Bin and Fu, Changkun and Xu, Zhenfeng and Tan, Bo and Wu, Fuzhong},
  issn         = {1999-4907},
  journal      = {FORESTS},
  keywords     = {soil fauna,dissolved organic carbon,dissolved nitrogen,subalpine forest,ALPINE FOREST,TERRESTRIAL ECOSYSTEMS,ORGANIC-MATTER,FOLIAR LITTER,RATES,GAPS,PATTERNS,QUALITY,SEQUESTRATION,MANIPULATION},
  language     = {eng},
  number       = {10},
  pages        = {17},
  title        = {Water, rather than temperature, dominantly impacts how soil fauna affect dissolved carbon and nitrogen release from fresh litter during early litter decomposition},
  url          = {http://dx.doi.org/10.3390/f7100249},
  volume       = {7},
  year         = {2016},
}

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