Combined ecological risks of nitrogen and phosphorus in European freshwaters

Azevedo L, van Zelm R, Leuven RSEW, Hendriks AJ, & Huijbregts MAJ (2015). Combined ecological risks of nitrogen and phosphorus in European freshwaters. Environmental Pollution 200: 85-92. DOI:10.1016/j.envpol.2015.02.011.

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Abstract

Eutrophication is a key water quality issue triggered by increasing nitrogen (N) and phosphorus (P) levels and potentially posing risks to freshwater biota. We predicted the probability that an invertebrate species within a community assemblage becomes absent due to nutrient stress as the ecological risk (ER) for European lakes and streams subjected to N and P pollution from 1985 to 2011. The ER was calculated as a function of species-specific tolerances to NO3. and total P concentrations and water quality monitoring data. Lake and stream ER averaged 50% in the last monitored year (i.e. 2011) and we observed a decrease by 22% and 38% in lake and stream ER (respectively) of river basins since 1985. Additionally, the ER from N stress srpassed that of P in both freshwater systems. The ER can be applied to identify river basins most subjected to eutrophication risks and the main drivers of impacts.

Item Type: Article
Uncontrolled Keywords: ecological risk; Nitrogen; Phosphorous, lake; stream; river basin
Research Programs: Ecosystems Services and Management (ESM)
Bibliographic Reference: Environmental Pollution; 200:85-92 (May 2015) (Published online 17 February 2015)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:53
Last Modified: 27 Sep 2016 14:30
URI: http://pure.iiasa.ac.at/11501

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