IMHE OpenIR
Opposite patterns of soil organic and inorganic carbon along a climate gradient in the alpine steppe of northern Tibetan Plateau
Du Chenjun; Gao Yongheng
Corresponding AuthorGao, Yongheng(gaoyh@cib.cas.cn)
2020
Source PublicationCATENA
ISSN0341-8162
EISSN1872-6887
Volume186Pages:104366
SubtypeArticle
Contribution Rank1
AbstractBoth soil organic carbon (SOC) and inorganic carbon (SIC) are important components of soil carbon storage. However, few studies have attempted to estimate the magnitude and patterns of SIC in arid areas. We measured the concentrations of SOC and SIC in alpine steppe grasslands along a climate gradient in the Tibetan Plateau. At all sites, an opposing trend was found in the distribution of SOC compared with SIC. SOC increased with increasing precipitation, while SIC decreased. Within sites, SOC decreased with soil depth, while SIC increased. Among the variables considered, soil total nitrogen (TN) and soil water content explained the most variability in SOC (r(2) = 0.95 for TN, r(2) = 0.93 for soil water content), and soil pH had the highest correlation with SIC (r(2) = 0.90). This finding indicates that SOC is closely related to biological processes, such as biomass input and litter accumulation, while SIC is determined by abiotic factors such as chemical and physical processes of soil formation. SOC and SIC densities showed that the SOC pool comprised 91% of total carbon (TC) storage in these alpine steppe soils. A decrease in SOC density occurred with depth, but this pattern was the opposite for SIC density in all soil profiles. These findings help to characterize the C cycle in the alpine steppe of the Tibetan Plateau.
KeywordArid regions Climate change Vertical distribution Soil carbon content C dynamics
DOI10.1016/j.catena.2019.104366
Indexed BySCI
WOS KeywordBELOW-GROUND BIOMASS ; PRECIPITATION GRADIENT ; GRAZING EXCLUSION ; CHINA GRASSLANDS ; NITROGEN ; DYNAMICS ; STORAGE ; TOPSOIL ; MANAGEMENT ; ECOSYSTEM
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFC0501802] ; National Science Foundation of China[41271276] ; Science and Technology Program of Qinghai Province of China[2019-HZ-807] ; Science and Technology Program of Qinghai Province of China[2019-ZJ-910] ; Key Research and Development Program of Sichuan Province of China[2018NZ0048]
WOS Research AreaGeology ; Agriculture ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:000509817000006
Funding OrganizationNational Key Research and Development Program of China ; National Science Foundation of China ; Science and Technology Program of Qinghai Province of China ; Key Research and Development Program of Sichuan Province of China
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33867
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorGao Yongheng
AffiliationCAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
Recommended Citation
GB/T 7714
Du Chenjun,Gao Yongheng. Opposite patterns of soil organic and inorganic carbon along a climate gradient in the alpine steppe of northern Tibetan Plateau[J]. CATENA,2020,186:104366.
APA Du Chenjun,&Gao Yongheng.(2020).Opposite patterns of soil organic and inorganic carbon along a climate gradient in the alpine steppe of northern Tibetan Plateau.CATENA,186,104366.
MLA Du Chenjun,et al."Opposite patterns of soil organic and inorganic carbon along a climate gradient in the alpine steppe of northern Tibetan Plateau".CATENA 186(2020):104366.
Files in This Item:
File Name/Size DocType Version Access License
1-s2.0-S034181621930(3948KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Du Chenjun]'s Articles
[Gao Yongheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Du Chenjun]'s Articles
[Gao Yongheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Du Chenjun]'s Articles
[Gao Yongheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 1-s2.0-S0341816219305089-main.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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