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Erik Jeppesen

High ammonium loading can increase alkaline phosphatase activity and promote sediment phosphorus release: A two-month mesocosm experiment

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High ammonium loading can increase alkaline phosphatase activity and promote sediment phosphorus release : A two-month mesocosm experiment. / Ma, Shuo Nan; Wang, Hai Jun; Wang, Hong Zhu; Li, Yan; Liu, Miao; Liang, Xiao Min; Yu, Qing; Jeppesen, Erik; Sondergaard, Martin.

In: Water Research, Vol. 145, 15.11.2018, p. 388-397.

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Ma, Shuo Nan ; Wang, Hai Jun ; Wang, Hong Zhu ; Li, Yan ; Liu, Miao ; Liang, Xiao Min ; Yu, Qing ; Jeppesen, Erik ; Sondergaard, Martin. / High ammonium loading can increase alkaline phosphatase activity and promote sediment phosphorus release : A two-month mesocosm experiment. In: Water Research. 2018 ; Vol. 145. pp. 388-397.

Bibtex

@article{cd61958bf1d74d17829f59fff40f798a,
title = "High ammonium loading can increase alkaline phosphatase activity and promote sediment phosphorus release: A two-month mesocosm experiment",
abstract = "In aquatic ecosystems, ammonium is one of the dominant substances in the effluent discharge from wastewater treatment plants and its impact has been widely explored as it is thought, in its toxic form (NH3), to cause stress on organisms. Little is, however, known about its potential effect on the release of phosphorus (P) from the sediment. In a two-month mesocosm (150 L) experiment, we tested if high loading of ammonium promotes sediment P release and investigated the dominant underlying mechanisms. A gradient of five target ammonium loading levels was used by adding NH4CI fertilizer: no addition/control (N0), 3 (N1), 5 (N2), 10 (N3), and 21 (N4) mg NH4Cl L-1 (NH4CI expressed as nitrogen). We found that: 1) significant sediment P release for N3 and N4 but minor release or retention for NO, N1, and N2 were detected both by the total phosphorus concentration (TP) in the overlying water and in situ measurements of diffusive gradients in thin-films (DGT) at the sediment-water interface; 2) overall, TP correlated significantly and positively with total nitrogen (TN) concentrations in the water. Further correlation and path analyses suggested that stimulated alkaline phosphatase activity (APA) was likely the dominant mechanisms behind the ammonium-induced sediment P release and decreased dissolved oxygen (DO) levels (an approximate reduction from 9.2 to 6.6 mg O2 L-1) was likely a contributing factor, particularly in the beginning of the experiment. (C) 2018 Elsevier Ltd. All rights reserved.",
keywords = "Sediment phosphorus release, Ammonium loading, Alkaline phosphatase activity, Dissolved oxygen, LAKE-SEDIMENTS, EUTROPHIC LAKE, GLOBAL ASSESSMENT, DISSOLVED-OXYGEN, WATER INTERFACE, SHALLOW LAKES, NITROGEN, PHYTOPLANKTON, TAIHU, CHINA",
author = "Ma, {Shuo Nan} and Wang, {Hai Jun} and Wang, {Hong Zhu} and Yan Li and Miao Liu and Liang, {Xiao Min} and Qing Yu and Erik Jeppesen and Martin Sondergaard",
year = "2018",
month = nov,
day = "15",
doi = "10.1016/j.watres.2018.08.043",
language = "English",
volume = "145",
pages = "388--397",
journal = "Water Research",
issn = "0043-1354",
publisher = "I W A Publishing",

}

RIS

TY - JOUR

T1 - High ammonium loading can increase alkaline phosphatase activity and promote sediment phosphorus release

T2 - A two-month mesocosm experiment

AU - Ma, Shuo Nan

AU - Wang, Hai Jun

AU - Wang, Hong Zhu

AU - Li, Yan

AU - Liu, Miao

AU - Liang, Xiao Min

AU - Yu, Qing

AU - Jeppesen, Erik

AU - Sondergaard, Martin

PY - 2018/11/15

Y1 - 2018/11/15

N2 - In aquatic ecosystems, ammonium is one of the dominant substances in the effluent discharge from wastewater treatment plants and its impact has been widely explored as it is thought, in its toxic form (NH3), to cause stress on organisms. Little is, however, known about its potential effect on the release of phosphorus (P) from the sediment. In a two-month mesocosm (150 L) experiment, we tested if high loading of ammonium promotes sediment P release and investigated the dominant underlying mechanisms. A gradient of five target ammonium loading levels was used by adding NH4CI fertilizer: no addition/control (N0), 3 (N1), 5 (N2), 10 (N3), and 21 (N4) mg NH4Cl L-1 (NH4CI expressed as nitrogen). We found that: 1) significant sediment P release for N3 and N4 but minor release or retention for NO, N1, and N2 were detected both by the total phosphorus concentration (TP) in the overlying water and in situ measurements of diffusive gradients in thin-films (DGT) at the sediment-water interface; 2) overall, TP correlated significantly and positively with total nitrogen (TN) concentrations in the water. Further correlation and path analyses suggested that stimulated alkaline phosphatase activity (APA) was likely the dominant mechanisms behind the ammonium-induced sediment P release and decreased dissolved oxygen (DO) levels (an approximate reduction from 9.2 to 6.6 mg O2 L-1) was likely a contributing factor, particularly in the beginning of the experiment. (C) 2018 Elsevier Ltd. All rights reserved.

AB - In aquatic ecosystems, ammonium is one of the dominant substances in the effluent discharge from wastewater treatment plants and its impact has been widely explored as it is thought, in its toxic form (NH3), to cause stress on organisms. Little is, however, known about its potential effect on the release of phosphorus (P) from the sediment. In a two-month mesocosm (150 L) experiment, we tested if high loading of ammonium promotes sediment P release and investigated the dominant underlying mechanisms. A gradient of five target ammonium loading levels was used by adding NH4CI fertilizer: no addition/control (N0), 3 (N1), 5 (N2), 10 (N3), and 21 (N4) mg NH4Cl L-1 (NH4CI expressed as nitrogen). We found that: 1) significant sediment P release for N3 and N4 but minor release or retention for NO, N1, and N2 were detected both by the total phosphorus concentration (TP) in the overlying water and in situ measurements of diffusive gradients in thin-films (DGT) at the sediment-water interface; 2) overall, TP correlated significantly and positively with total nitrogen (TN) concentrations in the water. Further correlation and path analyses suggested that stimulated alkaline phosphatase activity (APA) was likely the dominant mechanisms behind the ammonium-induced sediment P release and decreased dissolved oxygen (DO) levels (an approximate reduction from 9.2 to 6.6 mg O2 L-1) was likely a contributing factor, particularly in the beginning of the experiment. (C) 2018 Elsevier Ltd. All rights reserved.

KW - Sediment phosphorus release

KW - Ammonium loading

KW - Alkaline phosphatase activity

KW - Dissolved oxygen

KW - LAKE-SEDIMENTS

KW - EUTROPHIC LAKE

KW - GLOBAL ASSESSMENT

KW - DISSOLVED-OXYGEN

KW - WATER INTERFACE

KW - SHALLOW LAKES

KW - NITROGEN

KW - PHYTOPLANKTON

KW - TAIHU

KW - CHINA

U2 - 10.1016/j.watres.2018.08.043

DO - 10.1016/j.watres.2018.08.043

M3 - Journal article

C2 - 30173099

VL - 145

SP - 388

EP - 397

JO - Water Research

JF - Water Research

SN - 0043-1354

ER -