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

doi:10.1007/s40899-021-00559-z

Cited by 8 publications

(3 citation statements)

References 42 publications

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“…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 [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Assessment of spatio-temporal variations of selected water quality parameters of Lake Ziway, Ethiopia using multivariate techniques

et al. 2022

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Excess agrochemicals input from agricultural activities and industrial effluent around Lake Ziway catchment can pose a serious threat on the lake ecosystem. Lake Ziway is a shallow freshwater lake found in the northern part of the Ethiopian Rift Valley. It is characterized as semi-arid to sub-humid type of climate. Expansions of the flower industry, widespread fisheries, intensive agricultural activities, fast population growth lead to deterioration of water quality and depletion of aquatic biota. The spatial and temporal variations of selected water quality parameters were evaluated using multivariate techniques. The data were collected from nine sampling stations during dry and wet seasonal basis for analysis of fifteen water quality parameters. The physicochemical parameters were measured in-situ with portable multimeter and nutrients were determined by following the standard procedures outlined in the American Public Health Association using UV/Visible spectrophotometer. Mean nutrient concentrations showed increasing trend in all seasons. These sites were also characterized by high electrical conductivity and total dissolved solid (TDS). All the nine sampling sites were categorized into three pollution levels according to their water quality features using cluster analysis (CA). Accordingly, sampling sites Fb and Ketar River (Kb) are highly and moderately polluted in both seasons, respectively. On the other hand, sampling sites at the center (C), Meki river mouth (Ma), Ketar river mouth (Ka), Meki River (Mb), Korekonch (Ko) and Fa in dry season and Ka, C, Ma, Ko, Bulbula river mouth (B) and Fa during wet season were less polluted. Principal component analysis (PCA) analysis also showed the pollutant sources were mainly from Fb during dry season Mb and Kb during wet season. The values of comprehensive pollution index illustrated the lake is moderately and slightly polluted in dry and wet seasons, respectively. Comparatively, the pollution status of the lake is high around floriculture effluent discharge site and at the two feeding rivers (Kb and Mb) due to increasing trends in agrochemical loads. In order to stop further deterioration of the lake water quality and to eventually restore the beneficial uses of the lake, management of agrochemicals in the lake catchments should be given urgent priority.

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Section: Introductionmentioning

confidence: 99%

Assessment of spatio-temporal variations of selected water quality parameters of Lake Ziway, Ethiopia using multivariate techniques

et al. 2022

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Section: Data Collection: R-mett Implementationmentioning

confidence: 99%

“…Water quality status of the site indicates that the water is suitable for irrigation and human consumption and normally comprises the national and WHO standards [30]. Parameters such as pH, electrical conductivity, total dissolved solids, dissolved oxygen and chemical oxygen demand, and minerals such as calcium, magnesium and potassium, are within the permissible limit [30,31]. The high growth of Ipomea sps and low transparency of water shows that the site condition may be in eutrophic status [32]; however, nitrate value is far below the permissible limit and phosphate is below the detection limit [31].…”

Section: Data Collection: R-mett Implementationmentioning

confidence: 99%

Beyond Protected Areas: Assessing Management Effectiveness of a Ramsar Site in Nepal

Thapa

Lindner

2023

Diversity

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Ramsar Sites, wetlands of international importance, are an international category of protected wetland areas recognized under the Ramsar Convention on Wetlands. Protected areas around the world are not achieving the conservation objectives for which they were established, often due to a lack in effective management practices. Hence, protected area management effectiveness and its assessments are crucial elements of achieving responsive and pro-active management. Ramsar Sites that are not recognized as a protected area under the national park and wildlife conservation act in Nepal are often ignored for such assessments and receive little attention in terms of conservation and management. This study aimed to fill this gap by assessing Jagadishpur Reservoir Ramsar Site, which falls into the above category. The Ramsar Management Effectiveness Tracking Tool was used to assess the management effectiveness. Transformed into the global standard reporting format, the overall management effectiveness was 0.27 on a 0 to 1 scale. This score is considered to be in an inadequate range, requiring significant conservation intervention from government with support from conservation partners. This first assessment of Ramsar Site outside of protected area in Nepal and its comparison to global and European regional-level assessments provides the benchmark for future evaluation to track progress in management effectiveness. In conclusion, Ramsar Sites outside formally protected areas are often neglected and intermittent projects, and ad hoc implementation of small-scale activities seems inadequate to improve management effectiveness.

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Spatiotemporal variation of physicochemical parameters in Aripal and Watalara streams of Kashmir Himalaya using multivariate statistical techniques

Mir

Bakhtiyar

Arafat

et al. 2023

Environ Monit Assess

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Assessment of water quality using multivariate statistical approaches in Jagadishpur Reservoir, Lumbini Province, Nepal

Cited by 8 publications

References 42 publications

Assessment of spatio-temporal variations of selected water quality parameters of Lake Ziway, Ethiopia using multivariate techniques

Assessment of spatio-temporal variations of selected water quality parameters of Lake Ziway, Ethiopia using multivariate techniques

Beyond Protected Areas: Assessing Management Effectiveness of a Ramsar Site in Nepal

Spatiotemporal variation of physicochemical parameters in Aripal and Watalara streams of Kashmir Himalaya using multivariate statistical techniques

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