Welcomes the Declaration adopted by the Summit of Central African Heads of State on the Conservation and Sustainable Management of Tropical Forests, held at Yaoundé from 12 to 17 March 1999, encourages the countries of Central Africa to implement to the fullest extent possible the undertakings set out in the Declaration, and recognizes the efforts made by those countries in this respect, in particular with regard to policy coherence and coordination, with a view to the sustainable management and conservation of the forest ecosystems of the Central African subregion;