Defra - Department for Environment, Food and Rural Affairs.

Science Search

Science and Research Projects

Return to Science Search homepage   Return to Project List

Updating the Defra statutory maps of NVZ designated areas - WT1007

Description
To update the map of designated NVZ areas resulting from designation appeals and areas for potential de-designation in 2013. To collate and provide scientific evidence and other knowledge to the Defra Nitrates team that will help to underpin the review of the current NAP and development of the next NAP.
Objective
OBJECTIVES are as follows:

1. To update the map of designated NVZ areas resulting from designation appeals and areas for potential de-designation in 2013.
2. To collate and provide scientific evidence and other knowledge to the Defra Nitrates team that will help to underpin the review of the current NAP and development of the next NAP.


The project work will be divided into the following Work Packages (WP).

WP1. Updating the Defra statutory maps of NVZ designated areas (Leader: Chris Procter)
The statutory web-based NVZ maps will be updated to include boundaries for the following additional categories of land.

WP 1.1 Land that may be de-designated as a result of next NAP (‘purple areas’)
This work will take information supplied by the Environment Agency (EA) and from the 2002 and 2008 hard boundary definitions, plus data from the 2006 soft model runs. Surface water areas designated in 2002 that were not supported by the 2006 model run will be classified as potentially de-designated. These areas will be coloured purple on the maps and a new set of digital and paper overview, part summary and parcel boundary maps produced for England. In all, this will involve the production of over 700 new maps for inclusion in the Nitrate Pollution Prevention (Amendment) (England) Regulations 2009. These maps will be produced by December 2009 (earlier if possible) for inclusion in the amendment regulations. This WP will also provide an analysis of the numbers of farms, types and areas affected by the ‘purple areas’. Delivering this will require holding level statistics from Defra statistics. Holding statistics are confidential and require Grade 5 sign-off from the sponsoring section. Without this approval, the work will not be possible.

WP 1.2 Land de-designated as a result of successful appeals in 2009
This work will map land parcels that have been de-designated from the 2008 NVZ hard boundary map as a result of successful appeals to Defra. The work will take the appellant’s maps and the written instructions of the appeals board to determine the areas to be de-designated. The paper maps will be scanned, geo-referenced and captured in ESRI’s ArcGIS software. Each de-designated land parcel will be removed from the NVZ hard boundary map. Updated England overview, part summary and parcel boundary maps will be produced (where needed). These maps will be provided to Defra in both electronic and paper versions.

At present, it is not possible to determine the precise number of successful appeals though we understand that there are a total of c.750 appeals with a success rate of around 80% of the first c.100 decisions. For purposes of identifying resources for this WP, we have assumed that there will be approximately 350 appeals cases that will require alterations to the NVZ boundary. We understand and assume that full details all successful appeals, including relevant hard and/or electronic copy maps and supporting documents will be provided to ADAS on or before 1 January 2010. We anticipate delivery of the revised maps by February 2010. If there are more than 350 successful cases, additional resources are likely to be needed which will be discussed with Defra as necessary.

For both WP 3.1 and 3.2, the NVZ website (http://web.adas.co.uk/defra) will be updated to reflect the changes. The new boundaries will be provided to Natural England for inclusion on the Magic portal (http://www.magic.gov.uk). It should be noted that there is likely to be a lag between provision of boundaries to Magic and their upload due to a pre-defined monthly upload procedure. Since the current hosting arrangement for the website www.adas.co.uk/defra will cease on the 31March 2010, this work includes 12 months additional hosting for this website (expires 31/03/2011).


WP2. Collation and transfer of scientific knowledge for the next review of the Nitrates Action Programme (NAP) (Leader: Peter Dampney)
Scientific and other technical knowledge will be provided to the Defra Nitrates team to meet agreed requirements, including knowledge to help with the following:
1. The draft Nitrate Pollution Prevention (Amendment) (England) Regulations 2009 (3 days).
2. The NVZ Guidance leaflet 5a ‘Derogation from the Livestock Manure N Farm Limit’ (3 days).
3. Initial appraisal of the NVZ self-assessment and other modules planned for inclusion in Whole Farm Approach (1 day).
4. Participation in the EC ‘Nitrates Pollution Prevention’ workshop (19-20 November 2009 in Utrecht, Netherlands), including report summarising key information and outcomes (2 days).


Project Management
The project will be managed and co-ordinated by Peter Dampney, Principal Scientist, ADAS Boxworth who will be the main point of contact and interact with the Defra Nitrates team as appropriate.


References

Comber, A. Procter, C. Anthony, S. 2008. The Creation of a National Agricultural Land Use Dataset: Combining Pycnophylactic Interpolation with Dasymetric Mapping Techniques. Transactions in GIS. 12(6): 775–791.
Davison, P.S., Withers, P.J.A., Lord, E.I., Betson, M.J. and Strömqvist, J. 2008. PSYCHIC – A process-based model of phosphorus and sediment mobilisation and delivery within agricultural catchments. Part 1: Model description and parameterisation. Journal of Hydrology 350 (3-4), 290-302.
Defra, 2007. Impact of proposed NVZ Action Programme measures. Evidence paper D5. Paper developed by ADAS to support Defra’s public consultation on changes to the NVZ Action Programme. Available from: http://www.defra.gov.uk/environment/water/quality/nitrate/default.htm
Lord, E. I., and Anthony, S. G. 2000. A modelling framework for evaluating nitrate losses at national and catchment scales. Soil Use and Management 16, 167-174.
Time-Scale and Cost
From: 2009

To: 2010

Cost: £96,634
Contractor / Funded Organisations
ADAS UK Ltd.
Keywords
Environmental monitoring              
Environmental Protection              
Nitrates              
Water quality monitoring