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Assessment of Physicochemical Characteristics of Surface Water in the Full-Dyke and Semi-Dyke Systems: A Case Study

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The present study aimed to assess the physicochemical characteristics of surface water in the full-dyke (FD) and semi-dyke (SD) systems of the An Giang province. Water samples were collected in both seasons in 2019 (1) the first monitoring phase in the dry season (April) and (2) the second monitoring phase in the rainy season (October). At each season, the surface water samples were collected at 15 sites in the FD system and 15 sites in the SD system to analyze the water quality parameters. The results showed that the concentrations of DO, COD, BOD, TSS, NO3-, NH4+, TKN, PO43- and TP parameters in the FD system were higher than in the SD system and there was a significant difference (p<0.05), except the value of pH and DO in the dry season. The DO, COD, BOD5 and TSS concentrations in the FD system tended to exceed the Vietnamese standard threshold (QCVN 08:2015/BTNMT, column B1), but in the SD system, these values were within the allowable limits of Vietnamese Standard. Other parameters, such as NO3-, NH4+, TKN, PO43- and TP exceeded the threshold of the Vietnamese standard in both systems. The results of this study provide the scientific information on water pollution inside the FD system. Therefore, it was expected that the local government of the An Giang province should have long-term strategies to manage the FD system to improve the water quality inside the FD system.
Rocznik
Strony
10--19
Opis fizyczny
Bibliogr. 32 poz., rys.
Twórcy
  • Department of Environmental Sciences, College of Environment and Natural Resources, Can Tho University, 94000, Campus II, 3/2 Str., Xuan Khanh ward, Ninh Kieu district, Can Tho City, Vietnam
  • Department of Environment and Marine Resources, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14 Bunkyomachi, 852-8521, Nagasaki City, Japan
autor
  • Department of Environmental Sciences, College of Environment and Natural Resources, Can Tho University, 94000, Campus II, 3/2 Str., Xuan Khanh ward, Ninh Kieu district, Can Tho City, Vietnam
Bibliografia
  • 1. Abe S.S., Hashimoto S., Umezane T., Yamaguchi T., Yamamoto S., Yamada S., Endo T., Nakata N. 2016. Excessive application of farmyard manure reduces rice yield and enhances environmental pollution risk in paddy fields. Arch. Agron. Soil Sci., 62 (9), 1208–1221.
  • 2. American Public Health Association (APHA). 1998. Standard Methods for the Examination of Water and Wastewater, 20th edition, American Public Health Association, Washington, DC. USA.
  • 3. Berg H. 2002. Rice monoculture and integrated rice-fish farming in the Mekong Delta, Vietnam-economic and ecological considerations. Ecological economics, 41(1), 95–107.
  • 4. Boyd C.E. 1998. Water Quality for Pond Aquaculture. Auburn University, Alabama, USA.
  • 5. Chau N.D., Sebesvari Z., Amelung W., Renaud F.G. 2015. Pesticide pollution of multiple drinking water sources in the Mekong Delta, Vietnam: evidence from two provinces. Environ. Sci. Pollut. Res., 22(12), 9042–9058.
  • 6. Duc H.T 2014. Evaluation of the current status of rice cultivation inside and outside the embankment area of An Giang province. Master thesis in Environmental Sciences. Can Tho University. (in Vietnamese)
  • 7. Duyen P.L.M., Toan P.V., Tri V.P.D., Chiem N.H. 2015. Surface water quality and self-purification capacity of irrigation canal network in a full-dyke system in the My Luong town, Cho Moi district, An Giang province. Journal of Can Tho University, 39, 97–104. (in Vietnamese with English abstract)
  • 8. Gai N.T. 2012. Assessment of soil and water quality inside and outside of high dyke system in Chau Phu and Phu Tan district, An Giang province. Master thesis in Environmental Sciences. Can Tho University. (in Vietnamese)
  • 9. General Statistics Office of Vietnam (GSO). 2019. Statistical yearbook of Vietnam 2018. Statistical Publishing House.
  • 10. Giao N.T. 2020. Evaluating current water quality monitoring system on Hau River, Mekong delta, Vietnam using multivariate statistical technique. Journal of Applied Environmental Research, 42(1), 14–25.
  • 11. Hieu T.V. 2010. Understanding farmer production strategies in contextof policies for adaptation to floods in Vietnam. Master thesis. Swedish University of Agricultural Sciences.
  • 12. Hoa L.T.V., Nhan N.H., Wolanski E., Cong T.T., Shigeko H. 2006. The combined impact on the flooding in Vietnam’s Mekong River delta of local man-made structures, sea level rise, and dams upstream in the river catchment. Estuar. Coast. Shelf Sci., 71, 110–116.
  • 13. Hong N.T.T. 2013. Evaluation of water quality in the full-dyke and semi-dyke system in Chau Phu district, An Giang province. Master thesis in Environmental Sciences. Can Tho University. (in Vietnamese)
  • 14. Khanh H.C., Dung D.T., Nam T.S., Thuan N.C., Chiem N.H., Cong N.V. 2021. Diversity of phytoplankton in the full-dyke and semi-dyke systems in Vong Dong commune, Thoai Son district, An Giang province. Journal of Can Tho University, 1, 170–183. (in Vietnamese)
  • 15. Kien N.V., Dumaresq D., Pittock J. 2018. Impacts of rice intensification on rural households in the Mekong Delta: emerging relationships between agricultural production, wild food supply and food consumption. Food Secur., 10, 1615–1629.
  • 16. Kien N.V., Pittock J., Daniel C. 2019. Dikes, rice, and fish: how rapid changes in land use and hydrology have transformed agriculture and subsistence living in the Mekong Delta. Regional Environmental Change, 19, 2069–2077.
  • 17. Kogel-Knabner I., Amelung W., Cao Z., Fiedler S., Frenzel P., Jahn R., Kalbitz K., Kolbl A., Schloter M. 2010. Biogeochemistry of paddy soils. Geoderma, 157(1–2), 1–14.
  • 18. Lien N.T.K., Huy L.Q., Oanh D.T.H., Phu T.Q., Ut V.N. 2016. Water quality in mainstream and tributaries of Hau River. Journal of Can Tho University, 43, 68–79 (in Vietnamese).
  • 19. Minh H.V.T., Masaaki K., Ty T.Q., Dat Q.T., Kieu L.N., Ram A., Mostafizur R.M., Mitsuru O. 2019. Effecrs of multi-dike protection systems on surface water quality in the Vietnamese Mekong Delta. Water, 11, 1–23.
  • 20. Ministry of Natural Resources and Environment (MONRE). 2015. Vietnamese standard No. 08:2015/BTNMT, National technical regulation on surface water quality – Conditions for irrigation in agriculture. (in Vietnamese)
  • 21. Mishra A., Salokhe V.M. 2010. Flooding stress: the effects of planting pattern and water regime on root morphology, physiology and grain yield of rice. J. Agron. Crop. Sci., 196(5), 368–378.
  • 22. Nha D.V. 2006. Research on the impacts of dyke on socio-economic issues and environment at the floodplains in An Giang Province. Report for Viet Nam – Netherlands Research Program (VNRP).
  • 23. Ongley E.D. 2009. Water Quality of the Lower Mekong River. In: Campell IC (ed) The Mekong: Biophysical environment of an international river basin. Acedemic, New York.
  • 24. Phung B.T.M., Khanh H.C., Chiem N.H., Toan P.V. 2017. Study on the quantity and nutrients content of sediment in the full-dyke and semi-dyke systems in An Giang province. Journal of Can Tho University. (in Vietnamese)
  • 25. Sasakawa H., Yamamoto Y. 1978. Comparison of the uptake of nitrate and ammonium by rice seedlings: influences of light, temperature, oxygen concentration, exogenous sucrose, and metabolic inhibitors. Plant Physiol., 62(4), 665–669.
  • 26. Sub-Department of Irrigation. 2013. Investigation and assessment of current status of irrigation works system in An Giang province. Department of Agriculture and Rural Development in An Giang.
  • 27. The Government of Vietnam: Decision No. 99/TTg on water resources, infrastructure and rural development plan for the Vietnamese Mekong Delta during the period 1996–2000, 1996. (in Vietnamese)
  • 28. Thieu N.V., Dung N.T.N. 2014. Factors affecting to livelihoods and solutions for sustainable livelihoods of the poor in flooded areas of An Giang province. Journal of Can Tho University, 31, 39–45.
  • 29. Tong Y.D. 2017. Rice intensive cropping and balanced cropping in the Mekong Delta, Vietnam - economic and ecological considerations. Ecol. Econ., 132, 205–212.
  • 30. Triet N.V.K., Dung N.V., Fujii H., Kummu M., Merz B., Apel H. 2017. Has dyke development in the Vietnamese Mekong Delta shifted flood hazard downstream?. Hydrol. Earth Syst. Sci., 21, 3991–4010.
  • 31. Tuyen N.V., Toan P.V., Tri V.P.D., Chiem N.H. 2014. Economic Efficiency of Rice Cultivation and Surface Water Quality in- and outside of Full Dyke Systems in the Vietnamese Mekong Delta. Proceedings of the 19th IAHR-APD Congress, Hanoi, Vietnam 2014, 55–60.
  • 32. Xuan P.N. 2004. The quality of soil environment inside high dyke ring in An Phu and Cho Moi District, An Giang Province. Master thesis of Environment Science. Can Tho University. (in Vietnamese)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-b50979c0-057b-411d-a163-a0e18e5921ce
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