IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Sample storage-induced changes in the quantity and quality of soil labile organic carbon
Sun, Shou-Qin1,3; Cai, Hui-Ying2,3; Chang, Scott X3; Bhatti, Jagtar S.4
Corresponding AuthorCai, Hui-Ying
2015
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume5Pages:DOI: 10.1038/srep17496
SubtypeArticle
Abstract

Effects of sample storage methods on the quantity and quality of labile soil organic carbon are not fully understood even though their effects on basic soil properties have been extensively studied. We studied the effects of air-drying and frozen storage on cold and hot water soluble organic carbon (WSOC). Cold-and hot-WSOC in air-dried and frozen-stored soils were linearly correlated with those in fresh soils, indicating that storage proportionally altered the extractability of soil organic carbon. Air-drying but not frozen storage increased the concentrations of cold-WSOC and carbohydrate in cold-WSOC, while both increased polyphenol concentrations. In contrast, only polyphenol concentration in hot-WSOC was increased by air-drying and frozen storage, suggesting that hot-WSOC was less affected by sample storage. The biodegradability of cold-but not hot-WSOC was increased by air-drying, while both air-drying and frozen storage increased humification index and changed specific UV absorbance of both cold-and hot-WSOC, indicating shifts in the quality of soil WSOC. Our results suggest that storage methods affect the quantity and quality of WSOC but not comparisons between samples, frozen storage is better than air-drying if samples have to be stored, and storage should be avoided whenever possible when studying the quantity and quality of both cold-and hot-WSOC.

KeywordMicrobial Biomass Chemical-composition Fluorescence Spectroscopy Phosphorus Solubilization Humic Substances Molecular-weight Cold-storage Forest Soils Matter Temperature
DOI10.1038/srep17496
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Indexed BySCI
Language英语
Quartile2区
TOP
WOS IDWOS:000365419100001
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Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/13905
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Surface Processes & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Northeast Forestry Univ, Ctr Ecol Res, Harbin 150040, Peoples R China
3.Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2E3, Canada
4.No Forestry Ctr, Canadian Forest Serv, Edmonton, AB T6H 3S5, Canada
Recommended Citation
GB/T 7714
Sun, Shou-Qin,Cai, Hui-Ying,Chang, Scott X,et al. Sample storage-induced changes in the quantity and quality of soil labile organic carbon[J]. SCIENTIFIC REPORTS,2015,5:DOI: 10.1038/srep17496.
APA Sun, Shou-Qin,Cai, Hui-Ying,Chang, Scott X,&Bhatti, Jagtar S..(2015).Sample storage-induced changes in the quantity and quality of soil labile organic carbon.SCIENTIFIC REPORTS,5,DOI: 10.1038/srep17496.
MLA Sun, Shou-Qin,et al."Sample storage-induced changes in the quantity and quality of soil labile organic carbon".SCIENTIFIC REPORTS 5(2015):DOI: 10.1038/srep17496.
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