Table 5. Forest clearance typologies.

Trajectory Description of land-use change and relative clearance rates Proportion of farms (as %) following this trajectory in Community:
1 Coca cultivated throughout period researched; slow clearance 0 6.3 7.7
2 Coca never cultivated, other crops cultivated; fast clearance [illustrated in Fig. 3] 57.2 0 15.4
3 Coca never cultivated, dominated by a rice–pasture rotation; fast clearance 14.3 31.2 0
4 Coca cultivated, then abandoned in favor of substitute crops: slow clearance replaced by fast clearance [illustrated in Fig. 4] 21.4 0 76.9
5 Predominantly ranching, but coca cultivated for part of period researched, then abandoned in favor of ranching; generally fast clearance 0 62.5 0
6 Commerical and subsistence cultivation prior to a period dominated by coca cultivation, after which coca abandoned in favor of substitute crops;: slow clearance during the coca period, fast clearance at other times 7.1 0 0

We suggest that the low proportion of farmers admitting to growing coca is under-reported in Community I for two reasons. First, closer proximity to the main military base for narcotics control (Chimore) than the other two communities may have increased the farmers’ sensitivity to coca growing—even in the past. Second, the presence our field assistant may have inhibited farmers because, even though he lives in the city of Cochabamba, he was known to people in this community through a church exchange.