Mediterranean silvoarable systems in France

Description of system

The high seasonal variability of rainfall in the Mediterranean areas of southern France limits arable yields. There are periods of high rainfall in the autumn, and periods of water shortage in the spring and summer. In this situation, in areas where there are deep soils, that are able to retain water, silvoarable agroforestry (tree lines within the field) can improve water infiltration, limit soil evaporation, and limit crop water requirements.

Initial stakeholder meeting

The first meeting of the stakeholder group was help on 2 October 2014, and included visits to INRA Mauguio experimental station and the silvoarable systems at Restinclières. The research at Mauguio includes varietal selection of cereals. The systems at Restinclières include combinations of cereals with walnut, cereals with poplar and vineyard systems. The farmers who attended perceived that the key positive aspects of silvoarable agroforestry were income diversity, crop production, enhancement of biodiversity and wildlife habitats, and soil conservation. Key negative issues related to the business opportunity, cash flow, and crop losses from slugs, and wild deer and boars. A potential area for research is the selection of durum wheat varieties suited to agroforestry conditions.

If you would like to know about the activity of this group, please contact Dr Marie Gosme ( at INRA.

Download the initial stakeholder report

An initial report was produced in October 2014.

Download the initial research and development protocol

This stakeholder group has produced two protocols: the first is focused on the selection of durum wheat varieties for agroforestry and the second is focused on weed management in silvoarable systems.

Download the system descriptions

Two system description reports providing an update on the selection of durum wheat varieties and weed management were produced in January 2016.

Lesson learnt

Marie Gosme and Dominique Desclaux describe the lessons learnt from screening durum wheat cultivars for their suitability in agroforestry systems in Mediterranean France.  Up to 45 cultivars were compared in control and agroforestry conditions in up to three sites for up to three seasons. Crops under agroforestry conditions received between 40 and 75% of the light available in unshaded areas. Mean yields were low in 2015, were about 1.9 t/ha in 2016 and 2.7 t/ha in 2017.  The cultivars showed large variability in their suitability for agroforestry conditions with yield differences in agroforestry compared to full sun conditions ranging from -62% to +77 %. Old varieties and varieties based on populations were not systematically more adapted to agroforestry than newer or pure-line cultivars.