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Temporal and spatial characteristics of dissolved organic carbon in the Wujiang River,Southwest China
Xi Peng;  Baoli Wang;  Yanchuang Zhao
2017
Source PublicationActa Geochimica
Volume36Issue:4Pages:598-604
Abstract

River systems play an important role in the global carbon cycle. Rivers transport carbon to the ocean and also affect the carbon cycle in the coastal ocean. The flux from land to the ocean is thought to be a very important part of the land carbon budget. To investigate the effect of dam-building on dissolved organic carbon (DOC) in rivers, three reservoirs of different trophic states in the Wujiang basin, Guizhou Province, were sampled twice per month between May 2011 and May 2012. Temporal and spatial distributions of DOC in the reservoirs and their released waters were studied. It was found that different factors controlled DOC in river water, reservoir water, and released water. DOC in the rivers tended to be affected by primary production. For reservoirs, the main controlling factors of DOC concentration varied by trophic state. For the mesotrophic Hongjiadu Reservoir, the effect of primary production on DOC concentration was obvious. For the eutrophic Dongfengdu Reservoir and the hypereutrophic Wujiangdu Reservoir, primary production was not significant and DOC came instead from soil and plant litter.

KeywordCarbon Cycle Dissolved Organic Carbon Dam-building Effect The Wujiang River
Indexed ByEI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/7713
Collection环境地球化学国家重点实验室
Affiliation1.Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Environmental Geochemistry, Guiyang, Guizhou 550002, China
2.Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China
3.Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Key Laboratory of Digital Earth Science, Chinese Academy of Sciences, Beijing 100094, China
First Author Affilication中国科学院地球化学研究所
Recommended Citation
GB/T 7714
Xi Peng;Baoli Wang;Yanchuang Zhao. Temporal and spatial characteristics of dissolved organic carbon in the Wujiang River,Southwest China[J]. Acta Geochimica,2017,36(4):598-604.
APA Xi Peng;Baoli Wang;Yanchuang Zhao.(2017).Temporal and spatial characteristics of dissolved organic carbon in the Wujiang River,Southwest China.Acta Geochimica,36(4),598-604.
MLA Xi Peng;Baoli Wang;Yanchuang Zhao."Temporal and spatial characteristics of dissolved organic carbon in the Wujiang River,Southwest China".Acta Geochimica 36.4(2017):598-604.
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