Land manager preferences for outcome-based payments for environmental services in oak savannahs

Land managers' preferences towards practice- and outcome-based payments for environmental services are analysed using a labelled choice experiment applied to a Mediterranean oak savannah (dehesa or montado) as a case study. Results indicate that land managers prefer outcome- to practice-based payments, equivalent in terms of environmental targets, most probably because they are opposed to the restrictive practices included as requirements in the latter. This preference strongly depends on the environmental policy objective, with land managers being more willing to participate when the outcome-based payment targets carbon sequestration rather than biodiversity. Willingness to accept (WTA) significantly increases when the payment involves a remote-sensing monitoring system, but only for practice-based payments, hinting at differing views of the monitoring system depending on the scheme type. However, a complementary analysis focusing on acreage decision shows non-significant WTA values for the use of remote-sensing monitoring systems in practice-based payments when the requirement of the area enrolled is relaxed. This suggests that land managers may be trading off monitoring intensity against the probability of defaulting. Significant preference heterogeneity is observed, mostly explained by farms' structural and management characteristics. Results point to strong potential for the use of outcome-based payments with remote-sensing monitoring systems in oak savannahs.