DOI: 10.1002/2016GL070071
论文题名: Soil organic carbon stabilization by iron in permafrost regions of the Qinghai-Tibet Plateau
作者: Mu C.C. ; Zhang T.J. ; Zhao Q. ; Guo H. ; Zhong W. ; Su H. ; Wu Q.B.
刊名: Geophysical Research Letters
ISSN: 0094-8555
EISSN: 1944-8286
出版年: 2016
卷: 43, 期: 19 起始页码: 10286
结束页码: 10294
语种: 英语
英文关键词: carbon stabilization
; iron
; permafrost
; Qinghai-Tibetan Plateau
; soil organic carbon
Scopus关键词: Iron
; Lakes
; Organic carbon
; Permafrost
; Soils
; Biogeochemical process
; Permafrost region
; Qinghai Tibet plateau
; Qinghai-Tibetan plateau
; Soil carbon
; Soil organic carbon
; Vertical distributions
; Stabilization
英文摘要: A close relationship exists between soil organic carbon (SOC) and reactive iron; however, little is known about the role of iron in SOC preservation in permafrost regions. We determined the amount of SOC associated with reactive iron phases (OC-Fe) in the permafrost regions of the Qinghai-Tibetan Plateau (QTP). The results showed that the percentage of OC-Fe ranged between 0.9% and 59.5% in the upper 30 cm of soil and that the OC-Fe represented 19.5 ± 12.3% of the total SOC pool. No clear vertical distribution pattern in OC-Fe was present in the upper 1 m of soil. Throughout the year, the OC-Fe accounted for relatively stable proportions of the total SOC pool. This study suggests that approximately 20% of SOC is a potential rusty OC pool in the permafrost regions of the QTP. Biogeochemical processes related to the reaction of iron may play important roles in soil carbon cycles in permafrost regions. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992422388&doi=10.1002%2f2016GL070071&partnerID=40&md5=8495f63213594e0ea47dbff1e1f418c8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9518
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Key Laboratory of Western China's Environmental Systems Ministry of Education, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, China
Recommended Citation:
Mu C.C.,Zhang T.J.,Zhao Q.,et al. Soil organic carbon stabilization by iron in permafrost regions of the Qinghai-Tibet Plateau[J]. Geophysical Research Letters,2016-01-01,43(19).