Water Quality of the Mun River in Thailand-Spatiotemporal Variations and Potential Causes

doi:10.3390/ijerph16203906

	Water Quality of the Mun River in Thailand-Spatiotemporal Variations and Potential Causes
	Tian, Haoyu 1; Yu, Guo-An 2; Tong, Ling 1; Li, Renzhi 2; Huang, He Qing 2; Bridhikitti, Arika 3; Prabamroong, Thayukorn 4
刊名	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
	2019-10-01
卷号	16 期号:20 页码:19
关键词	water quality spatiotemporal variation WQI phosphorus Mun River basin
DOI	10.3390/ijerph16203906
通讯作者	Yu, Guo-An(yuga@igsnrr.ac.cn)
英文摘要	The water quality of the Mun River, one of the largest tributaries of the Mekong River and an important agricultural area in Thailand, is investigated to determine its status, identify spatiotemporal variations and distinguish the potential causes. Water quality dataset based on monitoring in the last two decades (1997-2017) from 21 monitoring sites distributed across the basin were analyzed using seasonal Kendall test and water quality index (WQI) method. The Kendall test shows significant declines in fecal coliform bacteria (FCB) and ammonia (NH3) in the upper reaches and increases in nitrate (NO3) and NH3 in the lower reaches. Strong temporal and spatial fluctuations were observed in both the concentrations of individual parameters and the WQI values. Seasonal variation of water quality was observed at each monitoring site. WQI values in August (flood season) were generally among the lowest, compared to other seasons. Spatially, sites in the upper reaches generally having lower WQI values than those in the lower reaches. Excessive phosphorus is the primary cause of water quality degradation in the upper reaches, while nitrogen is the primary parameter for water quality degradation in the lower reaches. Urban built-up land is an important "source" of water pollutants in the lower basin, while agricultural land plays a dual role, affecting across the basin.
资助项目	National Natural Science Foundation of China (NSFC)[41661144030] ; National Natural Science Foundation of China (NSFC)[41561144012]
WOS关键词	MULTIVARIATE STATISTICAL TECHNIQUES ; TREND ANALYSIS ; INDEX ; BASIN ; NITROGEN ; CHINA ; EUTROPHICATION ; PHOSPHORUS ; INDICATOR ; EXPORT
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:000494779100120
资助机构	National Natural Science Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/132071]
专题	中国科学院地理科学与资源研究所
通讯作者	Yu, Guo-An
作者单位	1.China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Mahidol Univ, Sch Interdisciplinary Studies, Environm Engn & Disaster Management Program, Kanchanaburi Campus, Kanchanaburi 71150, Thailand 4.Mahasarakham Univ, Fac Environm & Resource Studies, Maha Sarakham 44150, Thailand
推荐引用方式 GB/T 7714	Tian, Haoyu,Yu, Guo-An,Tong, Ling,et al. Water Quality of the Mun River in Thailand-Spatiotemporal Variations and Potential Causes[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2019,16(20):19.
APA	Tian, Haoyu.,Yu, Guo-An.,Tong, Ling.,Li, Renzhi.,Huang, He Qing.,...&Prabamroong, Thayukorn.(2019).Water Quality of the Mun River in Thailand-Spatiotemporal Variations and Potential Causes.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,16(20),19.
MLA	Tian, Haoyu,et al."Water Quality of the Mun River in Thailand-Spatiotemporal Variations and Potential Causes".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 16.20(2019):19.