Table 1.
Main reasons why people from different socio-ecological zones of the Tehuacán-Cuicatlán Valley, central México, let standing trees and shrubs in their agroforestry systems (AFS)
| Reasons | Temperate zones | Arid zones | Tropical dry and wet zones | |
|---|---|---|---|---|
| Utilitarian | Edible product | X | X | X |
| Firewood | X | X | X | |
| Fodder | X | X | X | |
| Edible fruit | X | X | ||
| Tools | X | X | X | |
| Medicine | X | X | X | |
| Timber | X | |||
| Construction | X | |||
| Beverages | X | X | ||
| Ecosystem benefits | Shade | X | X | X |
| Maintenance of fertility | X | X | ||
| Erosion control | X | X | ||
| Water control | X | |||
| Windbreaks | X | X | ||
| Attractor of rain | X | |||
| Boundary | X | X | ||
| Crop management | Support climbing crops | X | ||
| Habitat of useful species | X | X | ||
| Storing straw | X | |||
| Conforming the terrain | ||||
| Ethics | Part of nature | X | X | |
| Ornamental | X | |||
| Ceremonial | X | X | ||
| Does not affect | X | X | ||
| Use regulations | X |