| Variables | Type of variable | Measurement | Sign | Related empirical studies |
| Dependent | Continuous | Proportion of land allocated for AD tree planting |
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| Intensity of AD adoption |
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| Independent |
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| Sex | Dummy | 1 if head is male, 0 female | + | [35] [36] |
| Age | Continuous | Years | +/− | [10] [37] |
| Family size | Continuous | Number | −/+ | [38] [39] |
| Dependency ratio | Continuous | Number | − | [40] |
| Educational level | Continuous | Years | + | [23] [36] [41] |
| AD Farm experience | Continuous | Years | + | [10] [42] |
| Land acquisition | Dummy | 1 landowned, 0 otherwise | + | [42] [51] |
| Training access | Dummy | 1 if there is access, 0 otherwise | + | [42] |
| Off farm income | Continuous | Birr | + | [10] [39] |
| Livestock holding size | Continuous | Total livestock unit | − | [37] [39] |
| Land holding size | Continuous | Hectares | +/− | [37] [38] |
| Cooperative | Dummy | 1 if member, 0 otherwise | + | [26] |
| Extension access | Dummy | 1 if there is access, 0 otherwise | + | [39] [43] [44] |
| Market distance | Continuous | Kilometers | − | [45] |
| Road Distance | Continuous | Kilometers | − | [38] [42] |
| Access to credit | Dummy | 1 if there is access, 0 otherwise | + | [42] |
| Seedling access | Dummy | 1 if there is access, 0 otherwise | + | [37] [38] |
| Soil fertility status | Categorical | 1 = low, 2 = medium, 3 = high | − | [38] [42] |