Sources and cycling processes of nitrogen revealed by stable isotopes and hydrochemistry in a typical agricultural lake basin

C Su, J Jiang, X **e, Z Han, M Wang, J Li, H Shi - Applied Geochemistry, 2023 - Elsevier
Increased exposure to nitrate has been reported in many arid and semi-arid areas where
groundwater is used as the drinking water source, presenting a major public health threat …

Riverine nitrate source and transformation as affected by land use and land cover

X Li, YJ Xu, M Ni, C Wang, S Li - Environmental Research, 2023 - Elsevier
A mixed land use/land cover (LULC) catchment increases the complexity of sources and
transformations of nitrate in rivers. Spatial paucity of sampling particularly low-resolution …

Basin-wide tracking of nitrate cycling in Yangtze River through dual isotope and machine learning

F **e, G Cai, G Li, H Li, X Chen, Y Liu, W Zhang… - Science of the Total …, 2024 - Elsevier
Abstract The nitrate (NO 3−) input has adversely affected the water quality and ecological
function in the whole basin of the Yangtze River. The protection of water sources and …

Nitrate transformation and source tracking of Yarlung Tsangpo River using a multi-tracer approach combined with Bayesian stable isotope mixing model

Y Bao, M Sun, Y Wang, M Hu, P Hu, L Wu… - Environmental …, 2024 - Elsevier
Excessive levels of nitrate nitrogen (NO 3−-N) could lead to ecological issues, particularly in
the Yarlung Tsangpo River (YTR) region located on the Qinghai Tibet Plateau. Therefore, it …

Anthropogenic impacts and quantitative sources of nitrate in a rural-urban canal using a combined PMF, δ15N/δ18O–NO3-, and MixSIAR approach

C Zhang, W Rao, Z Wu, F Zheng, T Li, C Li, X Lei… - Environmental …, 2024 - Elsevier
Abstract Nitrate (NO 3−) pollution in irrigation canals is of great concern because it threatens
canal water use; however, little is known about it at present. Herein, a combination of …

Multiple isotopes decipher the nitrogen cycle in the cascade reservoirs and downstream in the middle and lower Yellow River: Insight for reservoir drainage period

J Mu, S Ding, SM Liu, G Song, X Ning, X Zhang… - Science of the Total …, 2024 - Elsevier
Intensive anthropogenic activities, such as excessive nitrogen input and dam construction,
have altered the nitrogen cycle in the global river system. However, the focus on the source …

Nitrate sources and transformation in surface water and groundwater in Huazhou District, Shaanxi, China: Integrated research using hydrochemistry, isotopes and …

L Li, P Li, Y Tian, X Kou, S He - Environmental Research, 2024 - Elsevier
Global water resources affected by excessive nitrate (NO 3−) have caused a series of
human health and ecological problems. Therefore, identification of NO 3− sources and …

Nutrient dynamics in small west-flowing tropical mountainous rivers of India

SKK Reddy, H Gupta, VK Gandla, DV Reddy… - Applied …, 2024 - Elsevier
In this study, the distribution of dissolved inorganic nitrate (DIN), phosphorus (DIP), and
silicate (DSi) in surface waters of 70 coastal rivers in India's Western Ghats (WG) has been …

Long-term variations (1970–2020) and spatial patterns of nitrogen and phosphorus soil budgets and fates in Indian agriculture

H Elsayed, A Beusen, AK Prusty… - Nutrient Cycling in …, 2024 - Springer
Abstract The Green Revolution rapidly increased India's food production since the 1960s,
but excessive synthetic fertilizer use caused severe environmental problems. Our spatially …

Spatial and seasonal variations in nutrient load and trophic status of Ganga and Yamuna rivers in Uttar Pradesh, India

K Varma, PK Jha - Water Supply, 2023 - iwaponline.com
Nutrient loading in aquatic systems from anthropogenic sources is a worldwide concern. The
Ganga is the most important river in India, but pollution is currently severely threatening its …