气候变化领域集成服务门户(CCPortal): Assessment of water quality using multivariate statistical approaches in Jagadishpur Reservoir, Lumbini Province, Nepal

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DOI	10.1007/s40899-021-00559-z
	Assessment of water quality using multivariate statistical approaches in Jagadishpur Reservoir, Lumbini Province, Nepal
	Sapkota, Mira; Pant, Ramesh Raj; Pathak, Lalit; Khanal, Barsha; Shrestha, Suraj; Poudel, Bigyan; Poudel, Shova; Thapa, Lal B.; Pal, Khadka Bahadur; Bishwakarma, Kiran; Durdiev, Khaydar
通讯作者	Pant, RR (通讯作者)
发表日期	2021
ISSN	2363-5037
EISSN	2363-5045
卷号	7 期号:5
英文摘要	The evaluation of water quality in freshwater lakes is indispensable due to its immense significance in terms of ecological services and livelihood perspectives. Anthropic pressures, however, in the form of rapid urbanization, excessive use of pesticides and fertilizers, land use and climate change are diminishing the water quality, which necessitates better insights into pollution variability and its controlling measures. In this study, the water quality parameters including temperature, pH, electrical conductivity (EC), total dissolved solids (TDS), oxidation-reduction potential, dissolved oxygen (DO), total hardness, Ca2+, Mg2+, K+, Na+, Fe3+, NH4+, NO3-, PO43-, Cl-, HCO3-, CO2 and chemical oxygen demand (COD) were investigated in the Jagadishpur Reservoir (a Ramsar Site, Reference No. 1315) in 2019. The data were analyzed using multivariate techniques including principal component analysis (PCA) and cluster analysis (CA). Additionally, the drinking and irrigational suitability of water was evaluated by water quality index (WQI); EC, Na%, sodium adsorption ratio (SAR), and magnesium hazard (MH), and also compared with the WHO guideline. The mean pH in the reservoir is found to be 8.01 exhibiting alkaline nature, and the ionic dominancy order is Ca2+ > Na+ > Mg2+ > K+ > NH4+ > Fe3+, and HCO3- > Cl- > NO3- > PO43- for the cations and anions, respectively. The cluster analysis reveals that the sampling sites toward the human settlements are comparatively more polluted, indicating an anthropic signature that is also consistent with PCA results. The aggregate results of the WQI, EC, Na%, SAR, and MH are found to be 74.06, 200.40 mu S/cm, 32.18, 0.54, and 43.54, respectively, suggesting that the water quality of the reservoir is mostly suitable for drinking and irrigational purposes. This study could be helpful to the policymakers, academia, and other stakeholders for the sustainable water quality management of the Ramsar-listed lakes in the Himalayas.
关键词	MAJOR ION CHEMISTRY HIGH-ALTITUDE LAKES RIVER-BASIN WEATHERING PROCESSES HIMACHAL-PRADESH HIMALAYA INDIA
英文关键词	Hydrochemistry; Water quality assessment; Multivariate analysis; Ramsar site; Jagadishpur Reservoir
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:000701291400002
来源期刊	SUSTAINABLE WATER RESOURCES MANAGEMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260384
推荐引用方式 GB/T 7714	Sapkota, Mira,Pant, Ramesh Raj,Pathak, Lalit,et al. Assessment of water quality using multivariate statistical approaches in Jagadishpur Reservoir, Lumbini Province, Nepal[J]. 中国科学院青藏高原研究所,2021,7(5).
APA	Sapkota, Mira.,Pant, Ramesh Raj.,Pathak, Lalit.,Khanal, Barsha.,Shrestha, Suraj.,...&Durdiev, Khaydar.(2021).Assessment of water quality using multivariate statistical approaches in Jagadishpur Reservoir, Lumbini Province, Nepal.SUSTAINABLE WATER RESOURCES MANAGEMENT,7(5).
MLA	Sapkota, Mira,et al."Assessment of water quality using multivariate statistical approaches in Jagadishpur Reservoir, Lumbini Province, Nepal".SUSTAINABLE WATER RESOURCES MANAGEMENT 7.5(2021).