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Nutrient control to prevent the occurrence of cyanobacterial blooms in a eutrophic lake in Southern Sweden, used for drinking water supply

Li, Jing LU ; Hansson, Lars Anders LU and Persson, Kenneth M. LU (2018) In Water (Switzerland) 10(7).
Abstract

Control of nutrients, mainly nitrogen (N) and phosphorus (P), plays a significant role in preventing cyanobacterial blooms (harmful algal blooms (HABs)). This study aims at evaluating changes in the risk of the occurrence of cyanobacterial blooms and advancing the understanding of how nitrogen and phosphorus affect the growth of cyanobacteria in a eutrophic lake, Lake Vombsjön, in southern Sweden. Our results show that TP (total phosphorus) has stronger positive correlation with cyanobacteria biomass than DIP (dissolved inorganic phosphorus); DIN (dissolved inorganic nitrogen) has a stronger negative correlation with cyanobacteria biomass than TN (total nitrogen); and DIN:TP has a stronger negative correlation with cyanobacteria biomass... (More)

Control of nutrients, mainly nitrogen (N) and phosphorus (P), plays a significant role in preventing cyanobacterial blooms (harmful algal blooms (HABs)). This study aims at evaluating changes in the risk of the occurrence of cyanobacterial blooms and advancing the understanding of how nitrogen and phosphorus affect the growth of cyanobacteria in a eutrophic lake, Lake Vombsjön, in southern Sweden. Our results show that TP (total phosphorus) has stronger positive correlation with cyanobacteria biomass than DIP (dissolved inorganic phosphorus); DIN (dissolved inorganic nitrogen) has a stronger negative correlation with cyanobacteria biomass than TN (total nitrogen); and DIN:TP has a stronger negative correlation with cyanobacteria biomass than TN:TP. The highest amount of cyanobacteria biomass, aboveWHO(World Health Organization) Alert Level 2 (10mm3/L) for drinking water correspond to the DIP/TP ratio below 10. To diminish the growth of cyanobacteria in Lake Vombsjön, TP and DIN control should be in focus, preferably a TP below 20 μg/L, and the DIN:TP ratio should be maintained at a level of at least above 10, but preferably above 50, thereby reducing the likelihood for a nitrogen limiting situation which may favor cyanobacteria dominating blooms.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cyanobacteria, DIN:TP ratio, Lake Vombsjön, Nitrogen, Phosphorus, TN:TP ratio
in
Water (Switzerland)
volume
10
issue
7
publisher
MDPI AG
external identifiers
  • scopus:85049925714
ISSN
2073-4441
DOI
10.3390/w10070919
language
English
LU publication?
yes
id
6d0d367b-94a9-44b9-9246-dfd0421e9b71
date added to LUP
2018-08-02 08:37:05
date last changed
2019-02-20 11:23:35
@article{6d0d367b-94a9-44b9-9246-dfd0421e9b71,
  abstract     = {<p>Control of nutrients, mainly nitrogen (N) and phosphorus (P), plays a significant role in preventing cyanobacterial blooms (harmful algal blooms (HABs)). This study aims at evaluating changes in the risk of the occurrence of cyanobacterial blooms and advancing the understanding of how nitrogen and phosphorus affect the growth of cyanobacteria in a eutrophic lake, Lake Vombsjön, in southern Sweden. Our results show that TP (total phosphorus) has stronger positive correlation with cyanobacteria biomass than DIP (dissolved inorganic phosphorus); DIN (dissolved inorganic nitrogen) has a stronger negative correlation with cyanobacteria biomass than TN (total nitrogen); and DIN:TP has a stronger negative correlation with cyanobacteria biomass than TN:TP. The highest amount of cyanobacteria biomass, aboveWHO(World Health Organization) Alert Level 2 (10mm<sup>3</sup>/L) for drinking water correspond to the DIP/TP ratio below 10. To diminish the growth of cyanobacteria in Lake Vombsjön, TP and DIN control should be in focus, preferably a TP below 20 μg/L, and the DIN:TP ratio should be maintained at a level of at least above 10, but preferably above 50, thereby reducing the likelihood for a nitrogen limiting situation which may favor cyanobacteria dominating blooms.</p>},
  articleno    = {919},
  author       = {Li, Jing and Hansson, Lars Anders and Persson, Kenneth M.},
  issn         = {2073-4441},
  keyword      = {Cyanobacteria,DIN:TP ratio,Lake Vombsjön,Nitrogen,Phosphorus,TN:TP ratio},
  language     = {eng},
  month        = {07},
  number       = {7},
  publisher    = {MDPI AG},
  series       = {Water (Switzerland)},
  title        = {Nutrient control to prevent the occurrence of cyanobacterial blooms in a eutrophic lake in Southern Sweden, used for drinking water supply},
  url          = {http://dx.doi.org/10.3390/w10070919},
  volume       = {10},
  year         = {2018},
}