Minerals Policy Monitoring Programme Report 2007-2010: Methods and Procedures
2012
Goffau, de, A. | Leeuwen, van, T.C. | Ham, van den, A. | Doornewaard, G.J. | Fraters, B.
Mineral Policy Monitoring Programme Report 2007–2010 Methods and procedures Since 2006, the role of the Minerals Policy Monitoring Network (LMM) has widened. This change in scope has affected the organisation of the programme, as well as its methods and procedures. In this report RIVM and LEI Wageningen UR have documented these changes in the set-up of the programme and the associated changes in methods and procedures. Monitoring results are reported separately. Objective of the LMM, prior and after 2006 The objectives of LMM are monitoring the water quality on farms and explaining the results in relation to agricultural practice on those farms. Up to 2006, the results of the LMM were primarily used to assess the effectiveness of Dutch agricultural mineral policies. Since then, LMM was expanded with a so-called derogation-monitoring network. This network monitors the impacts associated with the EU derogation, adjudicated to the Netherlands, for the permissible amounts of nitrogen from manure on grassland farms. Modifications The expansion of LMM tasks was accompanied by various modifications in the programme. First, the number of farms monitored has increased considerably. Secondly, since 2006 the network consists of a stationary group of farms. Prior to that, monitoring was done on a revolving group of farms from the total number of participating farms. Thirdly, the sampling frequency for water quality monitoring has gone up. Finally, the interest in the quality of surface water has gradually increased; at the onset, LMM focused largely on groundwater, water from drains and soil moisture
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