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Lookup NU author(s): Dr Nigel Critchley
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Agri-environment schemes are one of the main policy initiatives for delivering biodiversity objectives for lowland grasslands in the UK. Farmers entering into scheme agreements must adopt environmentally beneficial management practices. Results of botanical monitoring programmes, of duration up to 8 years for schemes in the four UK countries, are reviewed in the context of the UK Biodiversity Action Plan (BAP). No change was detected in 22 out of 38 samples (sets of quadrats or plots) of semi-natural grassland, implying maintenance of quality; some rehabilitation (improvement in condition) occurred in nine samples, but seven deteriorated. Some signs of reversion to grassland of biodiversity value (restoration) were detected in 9 out of 30 samples of agriculturally improved or semi-improved grassland. Rehabilitation or restoration usually coincided with low fertiliser input or changes in grazing intensity, and often occurred in western locations or the upland fringe. Deterioration was mostly due to inappropriate grazing intensity or altered hydrological regime. Greater use of site-specific targets and prescriptions would enhance future scheme performance and monitoring. (C) 2003 Elsevier Ltd. All rights reserved.
Author(s): Critchley CNR, Burke MJW, Stevens DP
Publication type: Article
Publication status: Published
Journal: Biological Conservation
Year: 2004
Volume: 115
Issue: 2
Pages: 263-278
ISSN (print): 0006-3207
ISSN (electronic): 1873-2917
Publisher: Elsevier BV
URL: http://dx.doi.org/10.1016/S0006-3207(03)00146-0
DOI: 10.1016/S0006-3207(03)00146-0
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