Assessment of Agricultural Biodiversity in Organic Livestock Farms in Italy

AGRONOMY-BASEL(2022)

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摘要
Livestock farming is often addressed as one of the most impactful food production systems on the environment due to GHGE-Green-House Gas Emissions- and land use degradation. However, in the last years there is a growing number of studies that underline the beneficial environmental impacts of extensive livestock farming (i.e., providing ecosystem services, increasing biodiversity and improving carbon and nitrogen cycles), as well as social and economic benefits (i.e., offering alternative and additional forms of income in marginal areas). The multitude of livestock management approaches call urgently for specific tools of assessment in order to inform and orientate policies, farming practices and consumer choices. This study proposes a set of 14 agroecological indicators to assess the state of structural/planned agrobiodiversity in livestock farming systems. Our methodology stems from the already established Indicator-Based Framework to evaluate the sustainability of farming systems and adapted it specifically to livestock farming systems. The set of indicators has been clustered with respect to the ecosystem functions/services they describe. The methodology has been applied and validated on a selection of 12 Italian organic livestock farms and analyzed according to animal breeds and geographical regions. The results highlight that the farms show very positive results with optimal values for all indicators, except for Field Adjacency (FA), Share Species (SS), Share Group (SG). This study highlights how livestock farms could actually provide different ecosystem services in comparison to stockless farms.
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关键词
agrobiodiversity, livestock farming, agroecological indicators, ecosystem services, planned biodiversity
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