They are all involved, by decisions of the President and/or the Government, in the work of planting trees and tending seedlings and young plantations, mainly in their respective forest park zone. An increase in wildlife population can be observed in some areas of forest park zone. Regular irrigation has improved watering places and feed stock for wildlife, enhancing the potential for diversity preservation in forest ecosystems. Such a wide-scale effort at the State level requires the realization of a series of preparatory measures. Some difficulties arose at the beginning of forest planting works, including a lack of irrigation water, necessary technical equipment and forestry specialists. Methodical support, control and instruction have been carried out by the Department of Forestry.