Hydrochemistry and Dissolved Inorganic Carbon (DIC) Cycling in a Tropical Agricultural River, Mun River Basin, Northeast Thailand

doi:10.3390/ijerph16183410

	Hydrochemistry and Dissolved Inorganic Carbon (DIC) Cycling in a Tropical Agricultural River, Mun River Basin, Northeast Thailand
	Li, Xiaoqiang 2; Han, Guilin 2; Liu, Man 2; Song, Chao 3; Zhang, Qian 1,2; Yang, Kunhua 2; Liu, Jinke 2
刊名	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
	2019-09-02
卷号	16 期号:18 页码:13
关键词	stable carbon isotope major elements dissolved inorganic carbon agriculture Mun River Basin Northeast Thailand
ISSN号	1661-7827
DOI	10.3390/ijerph16183410
通讯作者	Han, Guilin(hanguilin@cugb.edu.cn)
英文摘要	Dissolved inorganic carbon isotope composition (delta C-13(DIC)), together with major ion concentrations were measured in the Mun River and its tributaries in March 2018 to constrain the origins and cycling of dissolved inorganic carbon. In the surface water samples, the DIC content ranged from 185 to 5897 mu mol/L (average of 1376 mu mol/L), and the delta C-13(DIC) of surface water ranged from -19.6 parts per thousand to -2.7 parts per thousand. In spite of the high variability in DIC concentrations and partial pressure of carbon dioxide (pCO(2)), the delta C-13(DIC) values of the groundwater were relatively consistent, with a mean value of -16.9 +/- 1.4 parts per thousand (n = 9). Spatial changes occurred in the direction and magnitude of CO2 flux through water-air interface (F-CO2). In the dry season, fluxes varied from -6 to 1826 mmol/(m(2).d) with an average of 240 mmol/(m(2).d). In addition to the dominant control on hydrochemistry and dissolved inorganic carbon isotope composition by the rock weathering, the impacts from anthropogenic activities were also observed in the Mun River, especially higher DIC concentration of waste water from urban activities. These human disturbances may affect the accurate estimate contributions of carbon dioxide from tropical rivers to the atmospheric carbon budgets.
资助项目	National Natural Science Foundation of China[41661144029] ; National Natural Science Foundation of China[41325010]
WOS关键词	CO2 PARTIAL-PRESSURE ; ISOTOPIC COMPOSITION ; XIJIANG RIVER ; CONSUMPTION ; DIOXIDE ; GEOCHEMISTRY ; CHEMISTRY ; FLUXES ; DELTA-C-13(DIC) ; EMISSIONS
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种	英语
出版者	MDPI
WOS记录号	WOS:000489178500184
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/129916]
专题	中国科学院地理科学与资源研究所
通讯作者	Han, Guilin
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.China Univ Geosci Beijing, Inst Earth Sci, Beijing 100083, Peoples R China 3.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaoqiang,Han, Guilin,Liu, Man,et al. Hydrochemistry and Dissolved Inorganic Carbon (DIC) Cycling in a Tropical Agricultural River, Mun River Basin, Northeast Thailand[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2019,16(18):13.
APA	Li, Xiaoqiang.,Han, Guilin.,Liu, Man.,Song, Chao.,Zhang, Qian.,...&Liu, Jinke.(2019).Hydrochemistry and Dissolved Inorganic Carbon (DIC) Cycling in a Tropical Agricultural River, Mun River Basin, Northeast Thailand.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,16(18),13.
MLA	Li, Xiaoqiang,et al."Hydrochemistry and Dissolved Inorganic Carbon (DIC) Cycling in a Tropical Agricultural River, Mun River Basin, Northeast Thailand".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 16.18(2019):13.