BioBio
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Spain

Extremadura

Dehesa

Location

The farms are located in Extremadura region characterized by a dry and hot summer. The annual rain fall is 700 mm. Dehesa is a Mediterranean silvopastoral system base on the combination of scattered oaks with native pasture and rainfed crops as understorey. Dehesas are among the best-preserved low-intensity farming systems in Europe, and the integration of traditional land-use and biodiversity conservation occurring in these systems has been considered an example for the wise management of countryside as a whole, and an example of sustainable land use in Europe. Dehesas support outstanding levels of wild species and habitat diversity, a property that qualified them to become listed in the EU habitat directive as natural habitat type of community-wide interest.

Number of farms surveyed

A total of 10 farms have been surveyed in the dehesa region of Extremadura..

Farm type

Permanent crops

Main production

The main production is meat. All the farms have cattle. 4 have also sheep and 6 pigs. The average production is 127 kg of live meat/ha (33 to 315).

Farm size

The average size of the dehesa farms is very large, 481 ha (143 to 828).

Olive tree

Location

The farms are located in Extremadura region located in Central-Western Spain, where climate is typically Mediterranean, with rainfall (700 mm) regularly concentrated in fall, winter and spring. Winters are moderately cold and summer very warm. Water deficit is intense and usually last four months. Soils are generally acid and poor in organic matter and nutrients.

Number of farms surveyed

A total of 20 farms have been surveyed in the BioBio project (10 in OF and 10 in CF).

Farm type

Permanent crops

Main production

The main production is olive for oil production. 10 farms have also sheep from neighbouring farms grazing under the olive trees from February to May (6 in OF versus 4 in CF).

Farm size

The average size of farms is 8 ha (9.4 ha in organic farms (OF) versus 6.8 ha in conventional farms (CF)). But the farm size goes from 0.05 ha to 34 ha. The average size of the parcels is similar in OF and CF : 0.7 ha in OF versus 0.8 ha in CF.

Last change: 09.11.2012, 12:29 h | Contents (sitemap) | Imprint and legal notices

Case study contact

Gerardo Moreno

Universidad de Extremadura
Spain

Spain