Dissolved and particulate nutrient export from rural catchments: A case study from Luxembourg

Salvia-Castellvi, M.; Iffly, Jean François; Borght, Paul Vander; Hoffmann, Lucien

doi:10.1016/j.scitotenv.2005.02.005

Cited by 87 publications

(66 citation statements)

References 38 publications

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“…Dam reservoirs retain more sediment by increasing water residence time, which provides greater opportunity for N removal processes such as denitrification and ANAMOX (Fan and Shibata, 2015;Mayorga et al, 2010;Salvia-Castellvi et al, 2005). Deep water, lower oxygen and sediment together cause more anaerobic sediment and hence denitrification in dam reservoirs (Seitzinger et al, 2006;Trimmer et al, 2012).…”

Section: Processes Affecting Modeling Of Nitrogen Export and Uncertaimentioning

confidence: 99%

Modeling increased riverine nitrogen export: Source tracking and integrated watershed-coast management

Yan

Chen

et al. 2015

Marine Pollution Bulletin

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The global NEWS model was calibrated and then used to quantify the long term trend of dissolved inorganic nitrogen (DIN) export from two tributaries of Jiulong River (SE China). Anthropogenic N inputs contributed 61-92% of river DIN yield which increased from 337 in 1980s to 1662 kg N km −2 yr −1 in 2000s for the North River, and from 653 to 3097 kg N km −2 yr −1 for the West River. North River and West River contributed 55% and 45% respectively of DIN loading to the estuary. Rapid development and poor management driven by national policies were responsible for increasing riverine N export. Scenario analysis and source tracking suggest that reductions of anthropogenic N inputs of at least 30% in the North River (emphasis on fertilizer and manure) and 50% in the West River (emphasis on fertilizer) could significantly improve water quality and mitigate eutrophication in both river and coastal waters.

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Section: Processes Affecting Modeling Of Nitrogen Export and Uncertaimentioning

confidence: 99%

Modeling increased riverine nitrogen export: Source tracking and integrated watershed-coast management

Yan

Chen

et al. 2015

Marine Pollution Bulletin

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“…Landuse is characterised by patches of forest and lands dedicated mostly to grassland and agriculture. The hydrological regime of the Attert River is pluvial oceanic (Salvia-Castellví et al, 2005), with low flows from July to September (largely influenced by evapotranspiration losses), and high flows from December to February (dormant season). The mean annual precipitation for the study area is estimated 853 mm (Pfister et al, 2000).…”

Section: Study Areasmentioning

confidence: 99%

Examination of aerial diatom flushing across watersheds in Luxembourg, Oregon and Slovakia for tracing episodic hydrological connectivity

Pfister

Wetzel

Martínez‐Carreras

et al. 2015

Journal of Hydrology and Hydromechanics

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Hydrological processes research remains a field that is severely measurement limited. While conventional tracers (geochemicals, isotopes) have brought extremely valuable insights into water source and flowpaths, they nonetheless have limitations that clearly constrain their range of application. Integrating hydrology and ecology in catchment science has been repeatedly advocated as offering potential for interdisciplinary studies that are eventually to provide a holistic view of catchment functioning. In this context, aerial diatoms have been shown to have the potential for detecting of the onset/cessation of rapid water flowpaths within the hillslope-riparian zone-stream continuum.However, many open questions prevail as to aerial diatom reservoir size, depletion and recovery, as well as to their mobilisation and transport processes. Moreover, aerial diatoms remain poorly known compared to freshwater species and new species are still being discovered. Here, we ask whether aerial diatom flushing can be observed in three catchments with contrasting physiographic characteristics in Luxembourg, Oregon (USA) and Slovakia. This is a prerequisite for qualifying aerial diatoms as a robust indicator of the onset/cessation of rapid water flowpaths across a wider range of physiographical contexts. One species in particular, (Hantzschia amphioxys (Ehr.) Grunow), was found to be common to the three investigated catchments. Aerial diatom species were flushed, in different relative proportions, to the river network during rainfall-runoff events in all three catchments. Our take-away message from this preliminary examination is that aerial diatoms appear to have a potential for tracing episodic hydrological connectivity through a wider range of physiographic contexts and therefore serve as a complementary tool to conventional hydrological tracers.

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“…Phosphorus is a major nutrient for aquatic ecology, and its excess supply can lead to eutrophication which from agricultural fields to surface and groundwater is one of the most serious environmental problems throughout the world (Salvia-Castellví et al, 2005;Diaz et al, 2003). In natural systems, phosphorus is mainly cycled through a plant-soil dynamic.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the presence of groundwater with high concentration phosphorus has been detected and has gradually become evident. The excessive inflow of phosphorus resulting in the eutrophication development of the drainage basin, especially the outflow of phosphorus from arable land, has attracted extraordinary attention (Salvia-Castellví et al, 2005;Board, 2000;Diaz et al, 2003;Sharpley, 2003;Sharpley& Syers, 1979;Burwell et al, 1977;Baker et al, 1975). As shown in table 1, maximum concentrations of TP are obviously up to 0.050~1.759 mg/L in Northern Ireland, England, Wales, wetland basin at the south of Florida, Bysjiin Lake basin of Sweden and Nanjing and Taihu Lake basin of China.…”

Section: Introductionmentioning

confidence: 99%

Distribution and Adsorption Characteristics of Phosphorus at A Headwater Wetland in Ichikawa City, Chiba Prefecture, Japan

Piao¹,

Tang²,

Matsumaru³

et al. 2016

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The distribution and adsorption characteristics of phosphorus were investigated in a typical headwater wetland in Ichikawa City, Chiba Prefecture, Japan. Total dissolved phosphorus (TDP) was the main phosphorus fraction in the waters, ranging from limit of quantification (0.002 mg/L) to 0.059 mg/L in spring water, from limit of quantification to 0.128 mg/L in groundwater and from 0.012 to 0.048 mg/L in river water. TDP in 33% water samples were higher than the environmental quality standard for eutrophication (0

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Dissolved and particulate nutrient export from rural catchments: A case study from Luxembourg

Cited by 87 publications

References 38 publications

Modeling increased riverine nitrogen export: Source tracking and integrated watershed-coast management

Modeling increased riverine nitrogen export: Source tracking and integrated watershed-coast management

Examination of aerial diatom flushing across watersheds in Luxembourg, Oregon and Slovakia for tracing episodic hydrological connectivity

Distribution and Adsorption Characteristics of Phosphorus at A Headwater Wetland in Ichikawa City, Chiba Prefecture, Japan

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