At that rate China could add 10% to the world's total area of planted forest-which the FAO puts at 264m hectares, about 7% of the total forested area-in just five years.

In the stage of the biological reclamation, I have studied the soil improvement method, the planted forest technology and the farming and forestry multiplexed system.

The degenerated ecosystem was transformed into the fine ecosystem obviously, and the degenerated land can be used reasonably by building the planted forest of Tamarindus indica.