Hydro Chemical Assessment of Agro-well Water for Irrigation in Thalawa Block in Mahaweli System-H in Anuradhapura, Sri Lanka

Abeysingha, N. S.; Silva, D.S.M.D; Duminda, D. M. S.

doi:10.4038/jas.v13i3.8393

Cited by 2 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Al concentration of all four micro watersheds were with the permissible levels for drinking and irrigation. (Brindha and Kavitha, 2015;Abeysingha et al, 2018b). As shown in Table 5, average derived water quality Parameters of all four micro watersheds were within the permissible critical limit of irrigation water quality of FAO.…”

Section: Variation Of Mean Water Quality Parameters With the Fao And Who Guidelinesmentioning

confidence: 67%

Variation of Water Quality of Four Micro Watersheds Outlets in Upstream of Mahaweli River during Maha Cropping Season

Abeysingha

Madusanka

Rotawewa

et al. 2020

JTFE

Self Cite

View full text Add to dashboard Cite

Non-point source, agriculture based pollutants have been identified as one of the main cause for water pollution in Sri Lanka. Naranhinna, Pambadeniya Kappeti-Ela, and Rajamale micro watersheds located in the Kandy district have been identified by the project on Rehabilitation of degraded agricultural lands in the Central Highlands implemented by Food and Agricultural Organisation (FAO) to rehabilitate through watershed management plan. This study assessed the baseline water quality status of these micro watersheds by obtaining water samples at the outlet of each watersheds during the Maha cropping seasons 2018/2019. Three replicates water samples from each outlets were collected six times and analysed for EC , pH, TDS, CO32-, HCO3-, NO3-, NH4+, available P, total K, Na, Ca, Mg, Fe, Al, As, Cd, Cr, Mn, and Pb using standard methods. Most of the tested drinking water quality parameters in all four micro watersheds were within the permissible limits of World Health Organisation (WHO) standard except Fe and NH4+. Observed Fe contents exceeded the WHO limits (0.3 mg/L) of all watersheds and was in the range of 1.2-1.5 mg/L. Concentration of NH4+ at Kappeti Ela, Rajamale, and Pambadeniya was in the range of 0.5 to 0.7 mg/L which exceeded the WHO standard (0.5 mg/L). Using the tested parameters, study calculated drinking water quality index (DWQI) and also irrigation water quality index (IWQI) for all investigated micro watersheds for each of the sampling date. According to the guideline, mean DWQI (19 to 48.1) graded the water of all micro watersheds as excellent while IWQI (8.7-9.2) characterised them as excellent for any crops during the study period.

show abstract

Section: Variation Of Mean Water Quality Parameters With the Fao And Who Guidelinesmentioning

confidence: 67%

Variation of Water Quality of Four Micro Watersheds Outlets in Upstream of Mahaweli River during Maha Cropping Season

Abeysingha

Madusanka

Rotawewa

et al. 2020

JTFE

Self Cite

View full text Add to dashboard Cite

show abstract

“…Study used EC, MH, RSC, SAR, Na %, NO 3 and PI for the calculation of IWQI and the highest suitability limits were taken from the [15] and [17] . Similar calculation method was used to calculate the DWQI.…”

Section: Rsc Index Hco Comentioning

confidence: 99%

Cascade Tank Water Quality Management: A Case Study in Thirappane Tank Cascade System, Sri Lanka

Abeysingha

Dissanayake

Sumanaweera³

et al. 2021

j. of environ. & earth. sci.

View full text Add to dashboard Cite

Tank cascade system (TCS) is a series of tanks located in a mesocatchment and has been accepted as a Globally Important AgriculturalHeritage System found in Sri Lanka. Ecosystem components of theTCS play a major role in purifying water within the system. Thisstudy attempted to investigate the water quality status and the farmers’willingness to rehabilitate the ecosystem components of the ThirappaneTCS. Drinking and irrigation water quality parameters were tested in34 locations and drinking and irrigation water quality indexes werecalculated. Participatory rural appraisal and a questioner survey wereconducted to gather social data. Water of TCS was observed to beappropriate for irrigation but not for drinking during the Maha croppingseason. Based on the results of the Nitrate (as NO3- ) and Total Phosphate(as PO4 3-), water of TCS can be categorized as eutrophic. Presenceof ecosystem features of tank cascade system, annual income of therespondents, satisfaction on the quality of water for drinking, and theawareness about the tank cascade system significantly influenced theparticipatory decisions of the community on the rehabilitation of TCS.This study shall be an example and an eye opener to formulate sustainabletank cascade management plan.

show abstract

Hydro Chemical Assessment of Agro-well Water for Irrigation in Thalawa Block in Mahaweli System-H in Anuradhapura, Sri Lanka

Cited by 2 publications

References 17 publications

Variation of Water Quality of Four Micro Watersheds Outlets in Upstream of Mahaweli River during Maha Cropping Season

Variation of Water Quality of Four Micro Watersheds Outlets in Upstream of Mahaweli River during Maha Cropping Season

Cascade Tank Water Quality Management: A Case Study in Thirappane Tank Cascade System, Sri Lanka

Contact Info

Product

Resources

About