Spatial Distribution Characteristics of Nitrogen And Phosphorus Nutrients in High-Altitude Inland River Cascade Reservoirs

• Autorzy: Wang Yu , Tian Miao , Wang Hao , Luo Tianfeng , Li Neng’an , Yuan Xingpeng , Xin Yaling , Zhang Yang

Identyfikatory

DOI

10.37190/epe250105

• Języki publikacji: EN

Abstrakty

EN

The spatial distribution characteristics of nitrogen and phosphorus nutrients in cascade reservoirs in high-altitude regions are crucial for water quality management. Water samples were collected from 20 typical section points in the middle and upper reaches of the Heihe River. The research focused on the nutrient concentrations in the surface, middle, and bottom layers of the cascade reservoirs. Nutrient distribution characteristics in the reservoirs were analyzed using both longitudinal and vertical sam-pling. The results showed significant depth-dependent variations in nitrogen and phosphorus concen-trations, influenced by hydrodynamic processes, sediment dynamics, and nutrient cycling. The overall trend for NO^-₂-N, TP, and TN concentrations at the selected sampling points was consistent, with bot-tom-layer concentrations being significantly higher than those in the surface layer.NH₄⁺-N concentration was highest in the middle layer and lowest in the bottom layer, while the CODMn was highest in the surface water and lowest in the middle layer. The primary factors affecting these spatial distribution characteristics include the types and quantities of microorganisms and biological communities at different water depths, water movement and convection, sedimentation rates of suspended particles and organic matter, as well as human activities.

Słowa kluczowe

EN

suspended sediments; cascade reservoirs; nitrogen; phosphorus; surface layers; water quality management; water samples

PL

osady zawieszone; zbiorniki kaskadowe; azot; fosfor; warstwy powierzchniowe; zarządzanie jakością wody; próbki wody

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2025
• Tom: Vol. 51, nr 1
• Strony: 75--92
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Wang Yu

• College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730000, China
• Key Laboratory of Ecohydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
• Gansu Provincial Key Laboratory of Biomass Energy and Solar Energy Synergistic Supply Systems, Lanzhou, Gansu 730050, China

• https://orcid.org/0000-0001-5621-6052

autor

Tian Miao

• College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730000, China
• Gansu Provincial Key Laboratory of Biomass Energy and Solar Energy Synergistic Supply Systems, Lanzhou, Gansu 730050, China

autor

Wang Hao

• College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730000, China
• Gansu Provincial Key Laboratory of Biomass Energy and Solar Energy Synergistic Supply Systems, Lanzhou, Gansu 730050, China

autor

Luo Tianfeng

• Water Conservancy Project Construction Cost and Fee Management Center, Gansu Provincial Water Conservancy Department, Lanzhou 730046, China.

autor

Li Neng’an

• College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730000, China
• Gansu Provincial Key Laboratory of Biomass Energy and Solar Energy Synergistic Supply Systems, Lanzhou, Gansu 730050, China

autor

Yuan Xingpeng

• College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730000, China
• Gansu Provincial Key Laboratory of Biomass Energy and Solar Energy Synergistic Supply Systems, Lanzhou, Gansu 730050, China

autor

Xin Yaling

• College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730000, China
• Gansu Provincial Key Laboratory of Biomass Energy and Solar Energy Synergistic Supply Systems, Lanzhou, Gansu 730050, China

autor

Zhang Yang

• Gansu Provincial Water Environment Monitoring Centre, Lanzhou, 730000, China

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