From: Tree diversity and carbon stocks in agroforestry systems in northern Ethiopia
Characteristics | Lowland | Midland | Highland |
---|---|---|---|
Altitude (m a.s.l) | 1300–1500 | 1930 to 2500 | 1,800 to 3,250 |
Mean annual rain falls (mm) | 400 to 600 | 397 to 903 | 478 to 956 |
Average minimum and maximum To (oC) | 14.3 to 29.9 | 11.1 to 28.0 | 10.2 to 22.5 |
Dominant soil type | Cambisols | Leptosols | Leptosols |
Textural Class | Sandy loam | Sandy loam | Sandy loam |
Average pH ± sd | 7.9 ± 0.4 | 7.3 ± 0.5 | 7.3 ± 0.4 |
Mean size of farms studied (ha) ± sd | 1.62 ± 0.76 | 0.89 ± 0.78 | 0.76 ± 0.49 |
Major trees | Ziziphus spina-christi, Acacia etbaica; Acacia seyal | Faidherbia albida, Eucalyptus camaldulensis, Faidherbia albida, Acacia saligna | Eucalyptus globulus, Acacia abyssinica, Acacia saligna, Olea a fricana, Psidium guajava, |
Major food and cash crops | Zea mays, Sorghum bicolour, Eragrostis teff, Linum usitatissimum and Eleusine coacan | Triticum aestivum, Eragrostis teff, Zea mays, Eleusine coacana | Hordeum vulgare, Triticum aestivum and Zea mays |