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Control factors and scale analysis of annual river water, sediments and carbon transport in China
Song, Chunlin1,2; Wang, Genxu1; Sun, Xiangyang1; Chang, Ruiying1; Mao, Tianxu1,2
Corresponding AuthorGenxu Wang
2016
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume6Pages:doi:10.1038/srep25963
SubtypeArticle
AbstractUnder the context of dramatic human disturbances on river system, the processes that control the transport of water, sediment, and carbon from river basins to coastal seas are not completely understood. Here we performed a quantitative synthesis for 121 sites across China to find control factors of annual river exports (Rc: runoff coefficient; TSSC: total suspended sediment concentration; TSSL: total suspended sediment loads; TOCL: total organic carbon loads) at different spatial scales. The results indicated that human activities such as dam construction and vegetation restoration might have a greater influence than climate on the transport of river sediment and carbon, although climate was a major driver of Rc. Multiple spatial scale analyses indicated that Rc increased from the small to medium scale by 20% and then decreased at the sizable scale by 20%. TSSC decreased from the small to sizeable scale but increase from the sizeable to large scales; however, TSSL significantly decreased from small (768 g.m(-2).a(-1)) to medium spatial scale basins (258 g.m(-2).a(-1)), and TOCL decreased from the medium to large scale. Our results will improve the understanding of water, sediment and carbon transport processes and contribute better water and land resources management strategies from different spatial scales.
KeywordCarbon Cycle Hydrology
WOS HeadingsScience & Technology
DOI10.1038/srep25963
URL查看原文
WOS Subject ExtendedScience & Technology - Other Topics
Indexed BySCI
WOS KeywordPARTICULATE ORGANIC-CARBON ; MISSISSIPPI RIVER ; SPATIAL SCALES ; LOESS PLATEAU ; SOIL-EROSION ; YELLOW-RIVER ; PLOT DATA ; RUNOFF ; IMPACT ; FLUXES
Language英语
Quartile2区
TOP
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000375617300001
Funding OrganizationMajor Research Plan of the National Natural Science Foundation of China(91547203) ; National Natural Science Foundation of China(41401044)
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/16157
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Song, Chunlin,Wang, Genxu,Sun, Xiangyang,et al. Control factors and scale analysis of annual river water, sediments and carbon transport in China[J]. SCIENTIFIC REPORTS,2016,6:doi:10.1038/srep25963.
APA Song, Chunlin,Wang, Genxu,Sun, Xiangyang,Chang, Ruiying,&Mao, Tianxu.(2016).Control factors and scale analysis of annual river water, sediments and carbon transport in China.SCIENTIFIC REPORTS,6,doi:10.1038/srep25963.
MLA Song, Chunlin,et al."Control factors and scale analysis of annual river water, sediments and carbon transport in China".SCIENTIFIC REPORTS 6(2016):doi:10.1038/srep25963.
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