In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called

Shelterbelts are linear plantations of trees and shrubs designed to reduce wind erosion and protect soil from desiccation. The strategic arrangement with shorter trees on the desert side creates a gradual wind barrier that effectively prevents sand encroachment. Windbreaks and social forestry are related but distinct concepts.