Analysis of the ecological benefits of improving the hilly and sandy land in Qian'an County

Achievements in eco-agricultural construction in semi-sandy and semi-hilly areas by implementing engineering and biological measures were studied and analysed in the paper.Construction of contour ridge around mountains,plantation of fast growing trees and protective belt in sandy areas,etc. are effective measures in improving hilly and sandy land.Thus natural resources can be fully utilized and eco-environment improved with tangible results in ecology,society and economy.