Home > Research > Publications & Outputs > Towards a nutrient export risk matrix approach ...

Electronic data

  • Hess 8 834 2004

    Final published version, 1.11 MB, PDF document

    Available under license: CC BY


Text available via DOI:

View graph of relations

Towards a nutrient export risk matrix approach to managing agricultural pollution at source

Research output: Contribution to journalJournal articlepeer-review

<mark>Journal publication date</mark>2004
<mark>Journal</mark>Hydrology and Earth System Sciences
Issue number4
Number of pages12
Pages (from-to)834-845
Publication StatusPublished
<mark>Original language</mark>English


A generic Nutrient Export Risk Matrix (NERM) approach is presented. This provides advice to farmers and policy makers on good practice for reducing nutrient loss and, hopefully, persuades them to implement such measures. Combined with a range of nutrient transport modelling tools and field experiments, NERMs can play an important role in reducing nutrient export from agricultural land. The Phosphorus Export Risk Matrix (PERM) is presented as an example NERM. The PERM integrates hydrological understanding of runoff with a number of agronomic and policy factors into a clear problem-solving framework. This allows farmers and policy makers to visualise strategies for reducing phosphorus loss through proactive land management. The risk of pollution is assessed by a series of informed questions relating to farming intensity and practice. This information is combined with the concept of runoff management to point towards simple, practical remedial strategies which do not compromise farmers’ ability to obtain sound economic returns from their crop and livestock.

Bibliographic note

Towards a nutrient export risk matrix approach to managing agricultural pollution at source 10 cites: http://scholar.google.com/scholar?num=100&hl=en&lr=&cites=17996564700962080225