IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Dynamics of Soil Organic Carbon and Microbial Biomass Carbon in Relation to Water Erosion and Tillage Erosion
Nie Xiaojun1,2; Zhang Jianhui1; Su Zhengan1
Corresponding Author张建辉
2013
Source PublicationPLOS ONE
ISSN1932-6203
Volume8Issue:5Pages:e64059
SubtypeArticle
Abstract

; Dynamics of soil organic carbon (SOC) are associated with soil erosion, yet there is a shortage of research concerning the relationship between soil erosion, SOC, and especially microbial biomass carbon (MBC). In this paper, we selected two typical slope landscapes including gentle and steep slopes from the Sichuan Basin, China, and used the Cs-137 technique to determine the effects of water erosion and tillage erosion on the dynamics of SOC and MBC. Soil samples for the determination of Cs-137, SOC, MBC and soil particle-size fractions were collected on two types of contrasting hillslopes. Cs-137 data revealed that soil loss occurred at upper slope positions of the two landscapes and soil accumulation at the lower slope positions. Soil erosion rates as well as distribution patterns of the <0.002-mm clay shows that water erosion is the major process of soil redistribution in the gentle slope landscape, while tillage erosion acts as the dominant process of soil redistribution in the steep slope landscape. In gentle slope landscapes, both SOC and MBC contents increased downslope and these distribution patterns were closely linked to soil redistribution rates. In steep slope landscapes, only SOC contents increased downslope, dependent on soil redistribution. It is noticeable that MBC/SOC ratios were significantly lower in gentle slope landscapes than in steep slope landscapes, implying that water erosion has a negative effect on the microbial biomass compared with tillage erosion. It is suggested that MBC dynamics are closely associated with soil redistribution by water erosion but independent of that by tillage erosion, while SOC dynamics are influenced by soil redistribution by both water erosion and tillage erosion.
KeywordSoil Organic Carbon Microbial Biomass Carbon Tillage Erosion Water Erosion
WOS HeadingsScience & Technology
DOI10.1371/journal.pone.0064059
WOS Subject ExtendedScience & Technology - Other Topics
Indexed BySCI
WOS KeywordSTEEP HILLSLOPE ; CROP YIELD ; LOAM SOIL ; REDISTRIBUTION ; LANDSCAPE ; QUALITY ; TRANSLOCATION ; MANAGEMENT ; TERRACES ; IMPACT
Language英语
Quartile2区
TOP
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000320362700094
Funding OrganizationNational Natural Science Foundation of China(41001157 ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS(SDS-135-1206) ; Doctoral Program Foundation of Henan Polytechnic University(B2010-47) ; 41271242)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6633
Collection山地表生过程与生态调控重点实验室
山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chinese Acad Sci & Minist Water Conservancy, Chengdu, Peoples R China
2.Henan Polytech Univ, Sch Surveying & Land Informat Engn, Jiaozuo, Peoples R China
Recommended Citation
GB/T 7714
Nie Xiaojun,Zhang Jianhui,Su Zhengan. Dynamics of Soil Organic Carbon and Microbial Biomass Carbon in Relation to Water Erosion and Tillage Erosion[J]. PLOS ONE,2013,8(5):e64059.
APA Nie Xiaojun,Zhang Jianhui,&Su Zhengan.(2013).Dynamics of Soil Organic Carbon and Microbial Biomass Carbon in Relation to Water Erosion and Tillage Erosion.PLOS ONE,8(5),e64059.
MLA Nie Xiaojun,et al."Dynamics of Soil Organic Carbon and Microbial Biomass Carbon in Relation to Water Erosion and Tillage Erosion".PLOS ONE 8.5(2013):e64059.
Files in This Item:
File Name/Size DocType Version Access License
Dynamics of soil org(553KB) 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
[Nie Xiaojun]'s Articles
[Zhang Jianhui]'s Articles
[Su Zhengan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Nie Xiaojun]'s Articles
[Zhang Jianhui]'s Articles
[Su Zhengan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Nie Xiaojun]'s Articles
[Zhang Jianhui]'s Articles
[Su Zhengan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Dynamics of soil organic carbon and microbial biomass carbon in relation to water erosion and tillage erosion.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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