Control factors and scale analysis of annual river water, sediments and carbon transport in China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	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
刊名	SCIENTIFIC REPORTS
	2016-05-11
卷号	6 页码:doi:10.1038/srep25963
关键词	Carbon cycle Hydrology
ISSN号	2045-2322
通讯作者	Genxu Wang
英文摘要	Under 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.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	PARTICULATE ORGANIC-CARBON ; MISSISSIPPI RIVER ; SPATIAL SCALES ; LOESS PLATEAU ; SOIL-EROSION ; YELLOW-RIVER ; PLOT DATA ; RUNOFF ; IMPACT ; FLUXES
收录类别	SCI
原文出处	http://www.nature.com/articles/srep25963
语种	英语
WOS记录号	WOS:000375617300001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/16157]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 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.