In the central hardwood forest region of the US, increasing numbers of land owners are converting crop land marginally into a forest. This is being done to decrease the pressure on the use of existing hardwood species of the forest like black cherry, black walnut, and northern red oak.
In South Africa, about 0.5 percent of land is covered with indigenous forests, and 1.1 percent by forests formed by Total Commercial Afforestation (TCA) and containing trees like pine, gum trees, black wattle, and so forth. This has helped provide wood to be used for charcoal, poles, mining timber, paper pulp, and other commercial applications.
The advantage of planting a tree species, like pine, is it helps check infections the tree is prone to in its native country and climate, thus producing higher production. Pursuant to better growth and higher yields due to afforesting of these alien species, South Africa can produce and export close to two million tons of wood and wood products.
In China, the government has earmarked a bulk amount equivalent to almost 300 billion US dollars that would be completely utilized for afforesting schemes the country is planning. To combat soil erosion in Central and West China, the government has already started the process of converting farmland back to woodland.