Report 579
A decision framework to attribute atmospheric nitrogen deposition as a threat to or cause of unfavourable habitat condition on protected sites
(2016)
Laurence Jones et al
This report describes the development of a decision framework to provide a means of attributing nitrogen deposition as a threat to, or cause of, unfavourable habitat condition on protected sites.
 

Introduction

 

The UK’s semi-natural habitats exceed their atmospheric nitrogen (N) deposition critical load ranges across much of their area, and survey data suggests there are adverse impacts of this excess N deposition.  However, information from Common Standards Monitoring (CSM) of protected sites does not appear to identify N deposition as a potential cause of unfavourable condition at many sites.

A decision framework was developed to provide a means of attributing N deposition as a threat to, or cause of, unfavourable habitat condition on protected sites. The framework provides a practical methodology for assessing the impacts of N deposition on protected sites in an objective way, which was previously lacking. It is based on a sound conceptual approach, and is both robust and flexible enough to cope with additional information. The framework is described in this main report, whilst the detailed methodology is included in supporting Annexes.

 
 
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ISSN 0963-8901
 
Please cite as: Laurence Jones et al, (2016), A decision framework to attribute atmospheric nitrogen deposition as a threat to or cause of unfavourable habitat condition on protected sites, JNCC Report 579, ISSN 0963-8901