The carbon reservoir
in trees is much greater than that in herbacious plants. Thus planting
trees in former treeless land will increase the reservoir of carbon
in vegetation. Sequestration ceases when the trees are mature. Growing
trees for energy, as a substitute for fossil fuels, gives a continuous
offset benefit, in addition to the one-time benefit of carbon sequestration.
Trees planted
in Africa generally grow quickly and hence start to sequester carbon
over a shorter time span than trees planted in cold climates. Most
Africans still use charcoal and wood as their main source of cooking
fuel and trees play an important economic role in sustainable rural
development. Hence supporting tree planting helps to relieve the
poverty of the world's poorest people, mainly living in rural areas
of Africa.
For the purpose
of this sequestration programme the trees planted will be new trees,
not replacements of existing trees and will be replaced with new
trees upon reaching maturity.