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Erik Jeppesen

Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients

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Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients. / Goyenola, G.; Meerhoff, M.; Teixeira-de Mello, F.; González-Bergonzoni, I.; Graeber, D.; Fosalba, C.; Vidal, N.; Mazzeo, N.; Ovesen, N. B.; Jeppesen, E.; Kronvang, B.

In: Hydrology and Earth System Sciences Discussions, Vol. 12, No. 3, 01.03.2015, p. 3349-3390.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Goyenola, G, Meerhoff, M, Teixeira-de Mello, F, González-Bergonzoni, I, Graeber, D, Fosalba, C, Vidal, N, Mazzeo, N, Ovesen, NB, Jeppesen, E & Kronvang, B 2015, 'Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients', Hydrology and Earth System Sciences Discussions, vol. 12, no. 3, pp. 3349-3390. https://doi.org/10.5194/hessd-12-3349-2015

APA

Goyenola, G., Meerhoff, M., Teixeira-de Mello, F., González-Bergonzoni, I., Graeber, D., Fosalba, C., Vidal, N., Mazzeo, N., Ovesen, N. B., Jeppesen, E., & Kronvang, B. (2015). Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients. Hydrology and Earth System Sciences Discussions, 12(3), 3349-3390. https://doi.org/10.5194/hessd-12-3349-2015

CBE

Goyenola G, Meerhoff M, Teixeira-de Mello F, González-Bergonzoni I, Graeber D, Fosalba C, Vidal N, Mazzeo N, Ovesen NB, Jeppesen E, Kronvang B. 2015. Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients. Hydrology and Earth System Sciences Discussions. 12(3):3349-3390. https://doi.org/10.5194/hessd-12-3349-2015

MLA

Vancouver

Goyenola G, Meerhoff M, Teixeira-de Mello F, González-Bergonzoni I, Graeber D, Fosalba C et al. Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients. Hydrology and Earth System Sciences Discussions. 2015 Mar 1;12(3):3349-3390. https://doi.org/10.5194/hessd-12-3349-2015

Author

Goyenola, G. ; Meerhoff, M. ; Teixeira-de Mello, F. ; González-Bergonzoni, I. ; Graeber, D. ; Fosalba, C. ; Vidal, N. ; Mazzeo, N. ; Ovesen, N. B. ; Jeppesen, E. ; Kronvang, B. / Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients. In: Hydrology and Earth System Sciences Discussions. 2015 ; Vol. 12, No. 3. pp. 3349-3390.

Bibtex

@article{db03e6b09a3546c8aad9a2323b1ae0df,
title = "Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients",
abstract = "Climate and hydrology are relevant control factors for determining the timing and amount of nutrient losses from agricultural fields to freshwaters. In this study, we evaluated the effect of agricultural intensification on the concentrations, dynamics and export of phosphorus (P) in streams in two contrasting climate and hydrological regimes (temperate Denmark and subtropical Uruguay). We applied two alternative nutrient sampling programmes (high frequency composite sampling and low frequency instantaneous-grab sampling) and three alternative methods to estimate exported P from the catchments. A source apportionment model was applied to evaluate the contribution derived from point and diffuse sources in all four catchments studied. Climatic and hydrological characteristics of catchments expressed as flow responsiveness (flashiness), exerted control on catchment and stream TP dynamics, having consequences that were more significant than the outcome of different TP monitoring and export estimation strategies. The impact of intensification of agriculture differed between the two contrasting climate zones. Intensification had a significant impact on subtropical climate with much higher total (as high as 4436 μg P L-1), particulate, dissolved and reactive soluble P concentrations and higher P export (as high as 5.20 kg P ha-1 year-1). However, we did not find an increased contribution of particulate P to total P as consequence of higher stream flashiness and intensification of agriculture. The high P concentrations at low flow and predominance of dissolved P in subtropical streams actually exacerbate the environmental and sanitary risks associated with eutrophication. In the other hand, temperate intensively farmed stream had lower TP than extensively farmed stream. Our results suggest that the lack of environmental regulations of agricultural production has more severe consequences on water quality, than climatic and hydrological differences between the analysed catchments.",
author = "G. Goyenola and M. Meerhoff and {Teixeira-de Mello}, F. and I. Gonz{\'a}lez-Bergonzoni and D. Graeber and C. Fosalba and N. Vidal and N. Mazzeo and Ovesen, {N. B.} and E. Jeppesen and B. Kronvang",
year = "2015",
month = mar,
day = "1",
doi = "10.5194/hessd-12-3349-2015",
language = "English",
volume = "12",
pages = "3349--3390",
journal = "Hydrology and Earth System Sciences Discussions",
issn = "1812-2108",
publisher = "Copernicus GmbH",
number = "3",

}

RIS

TY - JOUR

T1 - Phosphorus dynamics in lowland streams as a response to climatic, hydrological and agricultural land use gradients

AU - Goyenola, G.

AU - Meerhoff, M.

AU - Teixeira-de Mello, F.

AU - González-Bergonzoni, I.

AU - Graeber, D.

AU - Fosalba, C.

AU - Vidal, N.

AU - Mazzeo, N.

AU - Ovesen, N. B.

AU - Jeppesen, E.

AU - Kronvang, B.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - Climate and hydrology are relevant control factors for determining the timing and amount of nutrient losses from agricultural fields to freshwaters. In this study, we evaluated the effect of agricultural intensification on the concentrations, dynamics and export of phosphorus (P) in streams in two contrasting climate and hydrological regimes (temperate Denmark and subtropical Uruguay). We applied two alternative nutrient sampling programmes (high frequency composite sampling and low frequency instantaneous-grab sampling) and three alternative methods to estimate exported P from the catchments. A source apportionment model was applied to evaluate the contribution derived from point and diffuse sources in all four catchments studied. Climatic and hydrological characteristics of catchments expressed as flow responsiveness (flashiness), exerted control on catchment and stream TP dynamics, having consequences that were more significant than the outcome of different TP monitoring and export estimation strategies. The impact of intensification of agriculture differed between the two contrasting climate zones. Intensification had a significant impact on subtropical climate with much higher total (as high as 4436 μg P L-1), particulate, dissolved and reactive soluble P concentrations and higher P export (as high as 5.20 kg P ha-1 year-1). However, we did not find an increased contribution of particulate P to total P as consequence of higher stream flashiness and intensification of agriculture. The high P concentrations at low flow and predominance of dissolved P in subtropical streams actually exacerbate the environmental and sanitary risks associated with eutrophication. In the other hand, temperate intensively farmed stream had lower TP than extensively farmed stream. Our results suggest that the lack of environmental regulations of agricultural production has more severe consequences on water quality, than climatic and hydrological differences between the analysed catchments.

AB - Climate and hydrology are relevant control factors for determining the timing and amount of nutrient losses from agricultural fields to freshwaters. In this study, we evaluated the effect of agricultural intensification on the concentrations, dynamics and export of phosphorus (P) in streams in two contrasting climate and hydrological regimes (temperate Denmark and subtropical Uruguay). We applied two alternative nutrient sampling programmes (high frequency composite sampling and low frequency instantaneous-grab sampling) and three alternative methods to estimate exported P from the catchments. A source apportionment model was applied to evaluate the contribution derived from point and diffuse sources in all four catchments studied. Climatic and hydrological characteristics of catchments expressed as flow responsiveness (flashiness), exerted control on catchment and stream TP dynamics, having consequences that were more significant than the outcome of different TP monitoring and export estimation strategies. The impact of intensification of agriculture differed between the two contrasting climate zones. Intensification had a significant impact on subtropical climate with much higher total (as high as 4436 μg P L-1), particulate, dissolved and reactive soluble P concentrations and higher P export (as high as 5.20 kg P ha-1 year-1). However, we did not find an increased contribution of particulate P to total P as consequence of higher stream flashiness and intensification of agriculture. The high P concentrations at low flow and predominance of dissolved P in subtropical streams actually exacerbate the environmental and sanitary risks associated with eutrophication. In the other hand, temperate intensively farmed stream had lower TP than extensively farmed stream. Our results suggest that the lack of environmental regulations of agricultural production has more severe consequences on water quality, than climatic and hydrological differences between the analysed catchments.

U2 - 10.5194/hessd-12-3349-2015

DO - 10.5194/hessd-12-3349-2015

M3 - Journal article

VL - 12

SP - 3349

EP - 3390

JO - Hydrology and Earth System Sciences Discussions

JF - Hydrology and Earth System Sciences Discussions

SN - 1812-2108

IS - 3

ER -