Take Action
If each of us makes the commitment and ensures that just one tree is planted in a degraded part of the drylands and that the tree survives through the year, we could have well over two billion trees in the drylands by the end of the year. That is a tree for every inhabitant of the drylands. So let us forest the drylands to keep them working for present and future generations.
UNCCD delineation of drylands
Forests within drylands
dry subhumid: P/PET 0.50 - 0.65
semiarid: P/PET 0.20 - 0.50
arid: P/PET 0.05 - 0.20
Non-forest drylands
dry subhumid: P/PET 0.50 - 0.65
semiarid: P/PET 0.20 - 0.50
arid: P/PET 0.05 - 0.20
Sources: ESRI, 1993; UNEP/GRID, 1991