Development of Forest Resources for Environmental Protection and Food Security in Arid and Semiarid Areas of the Near East and North Africa. Work plans for field demonstration and trial activities in Syria

aclareo afforestation agroforesteria agroforesterie agroforestry arboreta arboretos arboretum arbre forestier especies field experimentation forest plantations forest trees multipurpose trees production de plants de semis production de semences seed production seedling production siria site factors species syria syrie thinning