Apparently there is some research saying that because they have not used a diverse set of trees this will eventually be a disaster. Archive: https://archive.today/wIJxv From the post: >>China has a new Great Wall, but this one isn't built of stone and mortar to repel marauding invaders from the north. Instead, the “Great Green Wall” is a vast belt of trees and shrubs lining the bottom of its northern deserts, designed to halt the steady creep of desertification. New research suggests this massive megaproject is already functioning as a vital carbon sink, helping to stabilize the local environment. Located in northwest China’s Xinjiang Uyghur Autonomous Region, the Taklamakan Desert is one of the driest places on Earth and the largest desert in the country. It’s sometimes called the “Sea of Death” and “The Place of No Return” because of its desolate landscape, defined by towering dunes and a scarcity of wildlife.