IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Stellera chamaejasme L. increases soil N availability, turnover rates and microbial biomass in an alpine meadow ecosystem on the eastern Tibetan Plateau of China
Sun, G.1; Luo, P.1; Wu, N.1; Qiu, P. F.1; Gao, Y. H.2; Chen, H.1; Shi, F. S.1
Corresponding AuthorWu, N.
2009
Source PublicationSOIL BIOLOGY & BIOCHEMISTRY
ISSN0038-0717
Volume41Issue:1Pages:86-91
SubtypeArticle
Abstract

Plant species have been shown to have significant effects on soil nutrient pools and dynamics. Stellera chamaejasme L. a toxic perennial weed, has established and is now abundant in the alpine meadow on the eastern Tibetan Plateau of China since the 1960s. We quantified the effects of Stellera on carbon and nitrogen cycling in two topographic habitats, a flat valley and a south-facing slope, where Stellera was favored to spread within the study area. Aboveground litter biomass and tissue chemistry of aboveground litter and root were measured to explain the likely effects of Stellera on soil carbon and nutrient cycling. The sizes of various soil pools, e.g. nitrate, ammonium, inorganic phosphorus, microbial biomass, soil respiration and turnover rates including net mineralization, gross nitrification and denitrification were determined. The results showed that Stellera produced more aboveground litter than each of the co-occurring species. Aboveground litter of Stellera had higher tissue N and lower lignin:N than the other species. Stellera significantly increased surface soil (0-15 cm) organic matter, whereas no significant differences were found for organic C and total P in subsoil (15-30 cm) within and between patches of Stellera. Soil extractable nitrate concentrations in Stellera surface soil were 113% and 90% higher on the flat valley and on the south-facing slope, respectively. Both microbial biomass C and N were significantly higher in Stellera surface soil. Gross nitrification and microbial respiration were significantly higher in Stellera surface soil both on the flat valley and on the south-facing slope, whereas significant differences of denitrification were found only on the flat valley. The differences in the quantity and quality of aboveground litter are a likely mechanism responsible for the changes of soil properties. (c) 2008 Elsevier Ltd. All rights reserved.

KeywordAlpine Meadow Gross Nitrification Litter Microbial Biomass Nitrogen Availability SteL.era Chamaejasme L.
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.soilbio.2008.09.022
WOS Subject ExtendedAgriculture
Indexed BySCI
WOS KeywordNUTRIENT-POOR ECOSYSTEMS ; LITTER DECOMPOSITION ; EXTRACTION METHOD ; PLANT RESIDUES ; NITROGEN ; LIGNIN ; DYNAMICS ; TUNDRA ; DENITRIFICATION ; NITRIFICATION
Language英语
Quartile1区
TOP
WOS SubjectSoil Science
WOS IDWOS:000262250900012
CSCD IDAccession number: 20084911764658
Citation statistics
Cited Times:42[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10545
Collection成都山地所知识仓储(2009年以前)
Affiliation1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Sun, G.,Luo, P.,Wu, N.,et al. Stellera chamaejasme L. increases soil N availability, turnover rates and microbial biomass in an alpine meadow ecosystem on the eastern Tibetan Plateau of China[J]. SOIL BIOLOGY & BIOCHEMISTRY,2009,41(1):86-91.
APA Sun, G..,Luo, P..,Wu, N..,Qiu, P. F..,Gao, Y. H..,...&Shi, F. S..(2009).Stellera chamaejasme L. increases soil N availability, turnover rates and microbial biomass in an alpine meadow ecosystem on the eastern Tibetan Plateau of China.SOIL BIOLOGY & BIOCHEMISTRY,41(1),86-91.
MLA Sun, G.,et al."Stellera chamaejasme L. increases soil N availability, turnover rates and microbial biomass in an alpine meadow ecosystem on the eastern Tibetan Plateau of China".SOIL BIOLOGY & BIOCHEMISTRY 41.1(2009):86-91.
Files in This Item:
File Name/Size DocType Version Access License
Stellera chamaejasme(157KB)期刊论文出版稿开放获取CC BY-NC-NDView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sun, G.]'s Articles
[Luo, P.]'s Articles
[Wu, N.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sun, G.]'s Articles
[Luo, P.]'s Articles
[Wu, N.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sun, G.]'s Articles
[Luo, P.]'s Articles
[Wu, N.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Stellera chamaejasme L. increases soil N availability, turnover rates and microbial biomass in an alpine meadow ecosystem on the eastern Tibetan Plateau of China.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.