Nitrogen Deposition :: Permanent oligotrophic lakes, ponds and pools (including soft-water lakes)

Critical Load/Level Values: 

3-10 kg N ha-1 year-1

The lower end of the range is intended for boreal and alpine lakes, and the higher end of the range for Atlantic softwaters. Site specific advice should be sought from the conservation agencies as to which part of the range is relevant. Note that the critical load should only be applied to oligotrophic waters with low alkalinity with no significant agricultural or other human inputs.

Status: 
UNECE 2010 - Noordwijkerhout workshop
Habitat/Ecosystem Type: 
Permanent oligotrophic lakes, ponds and pools (including soft-water lakes)
Description: 

Change in the species composition of macrophyte communities, increased algal productivity and a shift in nutrient limitation of phytoplankton from N to P

Reliability: 
reliable
Eunis: 
C1.1

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