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Library Impacts of extensive grazing and abandonment on grassland soils and productivity

Impacts of extensive grazing and abandonment on grassland soils and productivity

Impacts of extensive grazing and abandonment on grassland soils and productivity

Resource information

Date of publication
December 2010
Resource Language
ISBN / Resource ID
AGRIS:US201301925993
Pages
476-482

Two long-term (16 year) experiments on intensively managed pastures compared extensive grazing, abandonment and continued intensive grazing and were assessed for impacts on soil parameters, plant nutrient content and ecological indicator values. There was a reduction in soil carbon and nitrogen in the abandoned treatment compared to the intensively managed treatment at the wetter site. At the drier site, extensive grazing resulted in a build up of soil carbon. There was a build up of dead organic matter and a reduction in the nutritive value of the vegetation as grazing was reduced. Indicator values confirmed the reduced soil nutrients and a fall in site pH. There was also a rise in the dominance of plants preferring moist conditions, especially at the wetter site. As biodiversity gains are small, the management of these systems could be seen as a trade-off between managing for production and for soil organic carbon. At the drier site this trade-off is apparent, whereas at the wetter site managing for production also maximises soil carbon content.

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Authors and Publishers

Author(s), editor(s), contributor(s)

Marriott, C.A.
Fisher, J.M.
Hood, K.
Pakeman, R.J.

Publisher(s)
Data Provider