4.7 Article

Combined effects of damming and drought on nitrogen dynamics in an ephemeral river of North China

Related references

Note: Only part of the references are listed.
Article Engineering, Civil

Research papers Tracing nitrate sources and transformations using Δ17O, d15N, and d18O-NO3- in a coastal plain river network of eastern China

Xiaoliang Ji et al.

Summary: This study used a multiple isotope approach to quantitatively identify sources and transformations of riverine nitrate in a wetland plain river network in eastern China. The results showed that municipal sewage was the dominant nitrate source, followed by soil nitrogen, atmospheric nitrate deposition, and nitrogen fertilizer. Additionally, the study highlighted the benefits of using Delta O-17-NO3- to enhance nitrate source apportionment.

JOURNAL OF HYDROLOGY (2022)

Article Environmental Sciences

Characterizing the impact of Three Gorges Dam on the Changjiang (Yangtze River): A story of nitrogen biogeochemical cycling through the lens of nitrogen stable isotopes

Kalina C. Grabb et al.

Summary: The study investigated the changes in nitrogen sources and cycling in the Three Gorges Reservoir and downstream the Changjiang, finding that the construction of the Three Gorges Dam and anthropogenic inputs have impacted the ecosystem, highlighting the significant influence of pollution sources on nitrogen cycling.

ENVIRONMENTAL RESEARCH (2021)

Article Environmental Sciences

Globally prevalent land nitrogen memory amplifies water pollution following drought years

M. Lee et al.

Summary: The introduction of a new index for quantifying land N memory effects and global model analyses suggest that these effects are globally prevalent but vary widely in strength, mainly due to large soil dissolved inorganic N (DIN) surpluses at the end of dry years and net mineralization pulses during subsequent wetter years leading to disproportionate increases in soil leaching and river loads.

ENVIRONMENTAL RESEARCH LETTERS (2021)

Article Green & Sustainable Science & Technology

The effects of clean energy production and urbanization on sources and transformation processes of nitrate in a subtropical river system: Insights from the dual isotopes of nitrate and Bayesian model

Xiaolong Liu et al.

Summary: This study quantified and identified nitrate sources and processes in a subtropical river impacted by dam impoundment and urbanization. It found that nitrate in agriculture and forest land mainly comes from chemical fertilizer and soil nitrogen, while manure and sewage are the main riverine sources. Nitrification was dominant, especially in urban areas, but manure and sewage inputs greatly influenced the process. Additionally, progressive denitrification was observed in the upper reaches due to dam impoundment for hydropower generation.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Environmental Sciences

Multiple isotopic compositions reveal complex nitrogen cycling in a subtropical estuary

Hao Jiang et al.

Summary: Nitrogen (N) pollution and eutrophication can harm estuarine ecosystems, with understanding N sources and cycling crucial for management. In the Pearl River Estuary (PRE), a multiple-isotopic approach revealed contrasting N dynamics between the west and east, with NO3- largely influenced by mixing in the west and assimilation/nitrification in the east. River discharge and nitrification were major contributors to the NO3- pool, while NH4+ mainly originated from river discharge.

ENVIRONMENTAL POLLUTION (2021)

Article Environmental Sciences

Hydroclimatic variability drives submarine groundwater discharge and nutrient fluxes in an anthropogenically disturbed, semi-arid estuary

Audrey R. Douglas et al.

Summary: Nutrient budgets in semi-arid estuaries can be incomplete without considering contributions from submarine groundwater discharge (SGD). In Nueces Bay, Texas, SGD was found to be the primary contributor to the nutrient budget, with nitrogen contamination primarily coming from shallow groundwater and new nitrogen inputs near the river mouth.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Engineering, Environmental

Nitrous oxide emissions from cascade hydropower reservoirs in the upper Mekong River

Wenqing Shi et al.

WATER RESEARCH (2020)

Article Green & Sustainable Science & Technology

National assessment of nitrogen fertilizers fate and related environmental impacts of multiple pathways in China

Cheng Sun et al.

JOURNAL OF CLEANER PRODUCTION (2020)

Article Engineering, Environmental

Impact of a large sub-tropical reservoir on the cycling of nutrients in a river

Fushun Wang

WATER RESEARCH (2020)

Review Environmental Sciences

River dam impacts on biogeochemical cycling

Taylor Maavara et al.

NATURE REVIEWS EARTH & ENVIRONMENT (2020)

Article Environmental Sciences

Nitrogen pollution and sources in an aquatic system at an agricultural coastal area of Eastern China based on a dual-isotope approach

Yanqiang Li et al.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2019)

Article Marine & Freshwater Biology

Long-term comparison of dissolved nitrogen species in tropical estuarine and coastal water systems

Joon Hai Lim et al.

ESTUARINE COASTAL AND SHELF SCIENCE (2019)

Article Engineering, Environmental

Control of the Hydraulic Load on Nitrous Oxide Emissions from Cascade Reservoirs

Xia Liang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2019)

Article Environmental Sciences

Effects of Damming on River Nitrogen Fluxes: A Global Analysis

Zahra Akbarzadeh et al.

GLOBAL BIOGEOCHEMICAL CYCLES (2019)

Article Environmental Sciences

Hydrological and pollution processes in mining area of Fenhe River Basin in China

Yonggang Yang et al.

ENVIRONMENTAL POLLUTION (2018)

Article Environmental Sciences

Concentration-Discharge Responses to Storm Events in Coastal California Watersheds

Rosana Aguilera et al.

WATER RESOURCES RESEARCH (2018)

Review Limnology

Wastewater influences nitrogen dynamics in a coastal catchment during a prolonged drought

Denise A. Bruesewitz et al.

LIMNOLOGY AND OCEANOGRAPHY (2017)

Article Environmental Sciences

Biogeochemical hotspots: Role of small water bodies in landscape nutrient processing

Frederick Y. Cheng et al.

WATER RESOURCES RESEARCH (2017)

Article Environmental Sciences

Nitrate source apportionment using a combined dual isotope, chemical and bacterial property, and Bayesian model approach in river systems

Yongqiu Xia et al.

JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES (2017)

Article Environmental Sciences

Identifying diffused nitrate sources in a stream in an agricultural field using a dual isotopic approach

Jingtao Ding et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2014)

Article Environmental Sciences

Hydrologic connectivity increases denitrification in the hyporheic zone and restored floodplains of an agricultural stream

Sarah S. Roley et al.

JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES (2012)

Article Environmental Sciences

Effect of storm events on riverine nitrogen dynamics in a subtropical watershed, southeastern China

Nengwang Chen et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2012)

Article Multidisciplinary Sciences

Source Partitioning Using Stable Isotopes: Coping with Too Much Variation

Andrew C. Parnell et al.

PLOS ONE (2010)

Review Environmental Sciences

Nitrogen cycles:: past, present, and future

JN Galloway et al.

BIOGEOCHEMISTRY (2004)