Short-term effects of soil moisture on soil organic carbon decomposition in a coastal wetland of the Yellow River Delta
Qu, Wendi1,2,3; Han, Guangxuan1,3; Wang, Jian4; Li, Juanyong1,2,3; Zhao, Mingliang1; He, Wenjun1,2,3; Li, Xinge1; Wei, Siyu1
Source PublicationHYDROBIOLOGIA
ISSN0018-8158
2020-09-30
Pages13
KeywordSoil moisture Soil organic carbon decomposition CO2 CH4 Coastal wetland
DOI10.1007/s10750-020-04422-8
Corresponding AuthorHan, Guangxuan(gxhan@yic.ac.cn)
AbstractSoil moisture remarkably influences soil organic carbon (SOC) decomposition and is one of the key variables in ecological models influencing changes in soil carbon (C) storage. However, the mechanisms determining the impact of soil moisture on SOC decomposition in coastal wetlands are poorly understood. We collected and incubated soil samples from a coastal wetland of the Yellow River Delta, China, to investigate the response of SOC decomposition (the sum of CO2-C and CH4-C) to soil moisture. Soil samples were incubated at 20%, 60%, 100%, 140% and 180% water holding capacity (WHC), respectively. Compared to drought condition (20% WHC), moist (60% and 100% WHC) and flooding (140% and 180% WHC) conditions were observed with significantly higher SOC decomposition, explained by increased soil microbial biomass and altered soil physical parameters (pH and electronic conductivity (EC)). Excluding the effect of drought, we found decreased SOC decomposition with increased microbial biomass in flooding conditions compared to moist conditions. Structural equation modeling analysis showed that SOC decomposition and soil C storage were associated with changes in soil environment and soil microbial biomass resulted from soil moisture variation. This study highlights the importance of soil moisture in soil carbon dynamics, which is enlightening for the evaluation of soil C cycling with a decline of soil moisture under a warmer climate in coastal wetlands.
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Forestry Science and Technology Innovation Project of Shandong Province ; Yellow River Delta Ecological Research Station of Coastal Wetland, CAS
Indexed BySCI
Language英语
WOS KeywordMICROBIAL ACTIVITY ; RESPIRATION ; TEMPERATURE ; PRECIPITATION ; RESPONSES ; SALINITY ; EXCHANGE ; BALANCE ; MINERALIZATION ; AVAILABILITY
WOS Research AreaMarine & Freshwater Biology
WOS IDWOS:000574071100001
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/28500
Collection中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorHan, Guangxuan
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAs, Yantai 264003, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
4.Ohio State Univ, Dept Geog, Columbus, OH 43210 USA
Recommended Citation
GB/T 7714
Qu, Wendi,Han, Guangxuan,Wang, Jian,et al. Short-term effects of soil moisture on soil organic carbon decomposition in a coastal wetland of the Yellow River Delta[J]. HYDROBIOLOGIA,2020:13.
APA Qu, Wendi.,Han, Guangxuan.,Wang, Jian.,Li, Juanyong.,Zhao, Mingliang.,...&Wei, Siyu.(2020).Short-term effects of soil moisture on soil organic carbon decomposition in a coastal wetland of the Yellow River Delta.HYDROBIOLOGIA,13.
MLA Qu, Wendi,et al."Short-term effects of soil moisture on soil organic carbon decomposition in a coastal wetland of the Yellow River Delta".HYDROBIOLOGIA (2020):13.
Files in This Item:
File Name/Size DocType Version Access License
Short-term effects o(1363KB)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
[Qu, Wendi]'s Articles
[Han, Guangxuan]'s Articles
[Wang, Jian]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qu, Wendi]'s Articles
[Han, Guangxuan]'s Articles
[Wang, Jian]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qu, Wendi]'s Articles
[Han, Guangxuan]'s Articles
[Wang, Jian]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Short-term effects of soil moisture on soil organic carbon decomposition in a coastal wetland of the Yellow River Delta.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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