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1 December 2007 Dynamics of species-rich upland hay meadows over 15 years and their relation with agricultural management practices
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Abstract

Questions: Has the species-rich vegetation of upland hay meadows been maintained under low intensity management imposed by an agri-environment scheme? Is the target plant community re-establishing where it has been modified previously by intensive agricultural practices? What combinations of management practices and soil properties are associated with changes towards or away from the target community?

Location: The Pennines, northern England, UK.

Methods: A survey of 116 hay meadows in 1987 was repeated in 2002 by recording plant species in permanent quadrats. Changes in community variables (species richness, Ellenberg values, upland hay meadow community coefficients) were analysed in species-rich, modified species-rich and degraded grassland types. Redundancy Analysis and Generalised Linear Models were used to show the relationship between management practices and soil properties and change in species composition and community variables.

Results: Few sites contained the species-rich grassland type, and here forb richness declined. In the modified species-rich type, total and grass species richness increased but Ellenberg N-values also increased. Total and grass species richness increased in the degraded type and the community coefficient increased. Management was weakly related to change in species composition but showed clear relationships with the community variables. Re-establishment of the target species-rich community was more likely with late cutting, in the absence of cattle or prolonged spring grazing, and at lower soil nutrient status.

Conclusion: The species-rich community was not maintained but some reversion occurred in degraded grassland. Inorganic fertiliser application and intensive spring grazing should be avoided and cutting delayed until late July.

Nomenclature: Stace (1997).

C. N. R. Critchley, J. A. Fowbert, and B. Wright "Dynamics of species-rich upland hay meadows over 15 years and their relation with agricultural management practices," Applied Vegetation Science 10(3), 307-314, (1 December 2007). https://doi.org/10.1658/1402-2001(2007)10[307:DOSUHM]2.0.CO;2
Received: 3 April 2006; Accepted: 1 October 2006; Published: 1 December 2007
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