Table 2. The number of landowners with PSA (payment for environmental services) contracts for forest protection or reforestation, compared to the number of landowners eligible for these PSA programs. Landowners with more than 2 ha of forest land were considered eligible for the forest protection PSA program, and landowners with more than 1 ha of pasture or charral were considered eligible for the reforestation PSA program. Data are further broken down by the primary factor dividing PSA participants from nonparticipants as determined by decision tree analyses. The “break point” for farm dependence, i.e., the percentage of landowner income from agricultural activities on the farm, in each PSA program is determined through the analysis and, as a result, varies between programs. AI stands for agricultural income. PSA program           Primary decision tree division Forest protection < 66% AI > 66% AI   PSA 72     61 11   No PSA 37 8 29 Reforestation < 25% AI > 25% AI   PSA 38 29 9   No PSA 96 21 75