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Nutrient budgets (N and P) for the Nui Coc reservoir catchment (North Vietnam)

Author

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  • Le, Thi Phuong Quynh
  • Ho, Cuong Tu
  • Duong, Thi Thuy
  • Rochelle-Newall, Emma
  • Dang, Dinh Kim
  • Hoang, Thanh Son

Abstract

The Nui Coc reservoir (water surface: 25.2km2; catchment area: 567km2), typical of medium sized reservoirs in Vietnam and in South East Asia, was built in the 1970s to stimulate social and economic development in the surrounding area. The nitrogen and phosphorus budgets were established in this typical reservoir catchment to determine the degree of human-induced alteration of nitrogen and phosphorus cycles. The results showed that both nitrogen and phosphorus inputs are higher than their outputs in the agricultural soil system, indicating the excess of fertilizer utilization in the catchment. The budget of the hydrosystem revealed that the nitrogen and phosphorus fluxes from agricultural and forest soils accounted for 50% and 51% of the total inputs to the hydrosystem, respectively. About 66% of the annual total nitrogen and 79% of the annual total phosphorus inputs to the hydrosystem were deposited/eliminated in the reservoir.

Suggested Citation

  • Le, Thi Phuong Quynh & Ho, Cuong Tu & Duong, Thi Thuy & Rochelle-Newall, Emma & Dang, Dinh Kim & Hoang, Thanh Son, 2014. "Nutrient budgets (N and P) for the Nui Coc reservoir catchment (North Vietnam)," Agricultural Water Management, Elsevier, vol. 142(C), pages 152-161.
    • Handle: RePEc:eee:agiwat:v:142:y:2014:i:c:p:152-161
    DOI: 10.1016/j.agwat.2014.04.014
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    Cited by:

    1. Cen Meng & Yi Wang & Yuyan Li & Jiaogen Zhou & Yong Li & Jinshui Wu, 2017. "Deteriorated Water Quality of Agricultural Catchments in South China by Net Anthropogenic Phosphorus Inputs," Sustainability, MDPI, vol. 9(9), pages 1-11, August.
    2. Pham, Hung Vuong & Sperotto, Anna & Furlan, Elisa & Torresan, Silvia & Marcomini, Antonio & Critto, Andrea, 2021. "Integrating Bayesian Networks into ecosystem services assessment to support water management at the river basin scale," Ecosystem Services, Elsevier, vol. 50(C).
    3. Wu, Jiechen & Franzén, Daniel & Malmström, Maria E., 2016. "Nutrient flows following changes in source strengths, land use and climate in an urban catchment, Råcksta Träsk in Stockholm, Sweden," Ecological Modelling, Elsevier, vol. 338(C), pages 69-77.

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