Agriculture Reference
In-Depth Information
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Figure 1. Example of field pattern used for the landscape scale study: 10 percent
GM maize adoption.
The economic effects of non-GM buffer zones were analyzed in a
landscape with GM maize production (Figure 1). Based on the simu-
lations of the level of adventitious presence of GM pollen in different
fields, big variations can be observed in the additional costs of non-GM
buffer zones, depending on the sizes of the GM fields, the width of the
buffer zones as well as the underlying assumptions concerning the eco-
nomic performance of GM maize in France: in the case of a 10 percent
GM adoption rate in the region, the per-hectare costs of non-GM buffer
zones range between around 4
/ha and 17
/ha for a 9-m wide buffer
zone and between around 7
/ha in the case of an 18-m
wide buffer zone (Table 3). Significant cost savings (of up to 29 per-
cent) can be achieved if the fields producing GM crops are clustered
in the region under investigation, in particular if small GM fields are
concerned.
/ha and 30
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