IGGCAS OpenIR  > 兰州油气中心
Comparison of Soil Organic Matter Transformation Processes in Different Alpine Ecosystems in the Qinghai-Tibet Plateau
Chen, Qiuyu1,2; Lei, Tianzhu3; Wu, Yingqin3; Si, Guicai3; Xi, Chuanwu4; Zhang, Gengxin1
2019
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
ISSN2169-8953
Volume124Issue:1Pages:33-45
AbstractSoils in the Qinghai-Tibet Plateau are young in terms of development and form a thin, skeletal soil layer because the gravel parent materials are glaciofluvial deposit, eluvium, and fluvial sediment, which are extremely sensitive to global climate change. The lack of understanding of soil organic matter (SOM) transformation processes in this region hinders the prediction of SOM stocks under future climate conditions. In this study, SOM transformation processes were investigated by density groupings and pyrolysis-gas chromatography/tandem-mass spectrometry (Py-GC-MS/MS) in five alpine ecosystems: alpine desert, alpine grassland, alpine meadow, alpine wetland, and alpine forest. The roles of microbial community in different density fractions were elucidated. Soil samples were separated into three fractions with NaI solution: labile fraction (F-L; rho <= 1.6 g/cm(3)), moderate fraction (F-M; 1.6 < rho < 2.25 g/cm(3)), and recalcitrant fraction (F-R; rho >= 2.25 g/cm(3)). The following results were obtained. (1) The ratios of different fractions (F-M/F-L, F-R/F-M, and F-R/F-L) indicated the transformation processes of SOM, and ratios less than 1 represented degradation. The transformation processes were similar in alpine grassland and meadow and were similar in alpine desert, wetland, and forest but differed from each other. (2) Fungi preferred to degrade plant detritus, which mainly affected F-L, whereas bacteria chiefly affected F-M. (3) Precipitation altered vegetation type and soil pH, thus affecting communities and microorganism activities and resulting in the above differences. These findings highlight the importance of understanding the limited transformation processes of SOM in ecosystems to predict the impact of climate change on SOM preservation.
Keywordalpine ecosystem organic matter transformation microbial community soil density fractionation Py-GC-MS MS
DOI10.1029/2018JG004599
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Science and Technology Basic Resources Investigation Program of China ; Science and Technology Basic Resources Investigation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Science and Technology Basic Resources Investigation Program of China ; Science and Technology Basic Resources Investigation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Science and Technology Basic Resources Investigation Program of China ; Science and Technology Basic Resources Investigation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Science and Technology Basic Resources Investigation Program of China ; Science and Technology Basic Resources Investigation Program of China
WOS KeywordMICROBIAL COMMUNITY COMPOSITION ; DIFFERENT VEGETATION TYPES ; PYROLYSIS-GC/MS ; ENZYME-ACTIVITIES ; CLIMATE-CHANGE ; CARBON POOLS ; FOREST ; BIOMASS ; TEMPERATURE ; PERMAFROST
Language英语
Funding ProjectNational Natural Science Foundation of China[41471055] ; Key Research Program of Frontier Sciences of the Chinese Academy of Science[QYZDB-SSW-DQC025] ; Science and Technology Basic Resources Investigation Program of China[2015FY110100]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Science and Technology Basic Resources Investigation Program of China ; Science and Technology Basic Resources Investigation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Science and Technology Basic Resources Investigation Program of China ; Science and Technology Basic Resources Investigation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Science and Technology Basic Resources Investigation Program of China ; Science and Technology Basic Resources Investigation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Key Research Program of Frontier Sciences of the Chinese Academy of Science ; Science and Technology Basic Resources Investigation Program of China ; Science and Technology Basic Resources Investigation Program of China
WOS Research AreaEnvironmental Sciences & Ecology ; Geology
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary
WOS IDWOS:000458728400003
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90685
Collection兰州油气中心
Corresponding AuthorZhang, Gengxin
Affiliation1.Chinese Acad Sci, Key Lab Alpine Ecol & Biodivers, Inst Tibetan Plateau Res, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Lanzhou, Gansu, Peoples R China
4.Univ Michigan, Sch Publ Hlth, Dept Environm Hlth Sci, Ann Arbor, MI 48109 USA
Recommended Citation
GB/T 7714
Chen, Qiuyu,Lei, Tianzhu,Wu, Yingqin,et al. Comparison of Soil Organic Matter Transformation Processes in Different Alpine Ecosystems in the Qinghai-Tibet Plateau[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2019,124(1):33-45.
APA Chen, Qiuyu,Lei, Tianzhu,Wu, Yingqin,Si, Guicai,Xi, Chuanwu,&Zhang, Gengxin.(2019).Comparison of Soil Organic Matter Transformation Processes in Different Alpine Ecosystems in the Qinghai-Tibet Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,124(1),33-45.
MLA Chen, Qiuyu,et al."Comparison of Soil Organic Matter Transformation Processes in Different Alpine Ecosystems in the Qinghai-Tibet Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 124.1(2019):33-45.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Qiuyu]'s Articles
[Lei, Tianzhu]'s Articles
[Wu, Yingqin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Qiuyu]'s Articles
[Lei, Tianzhu]'s Articles
[Wu, Yingqin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Qiuyu]'s Articles
[Lei, Tianzhu]'s Articles
[Wu, Yingqin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

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