柴草沙障在我国的治沙实践中有着悠久的历史,是工程固沙的主要措施。然而长期以来,设置这类沙障多以麦草作材料,由于麦草的纤维结构和化学组成所致,沙障有效期甚短,实际效益较低。为此,从1983年起,我们改以胡麻秆作材料,在民勤治沙站设置沙障75,000米,压沙25公顷。几年来的试验表明,它比麦草沙障有效期长、固沙效果好,和粘土 Firewood sand barrier in our practice of sand control has a long history, the project is the main sand fixation. However, for a long time, such sand barriers are mostly made of wheat straw. Due to the fiber structure and chemical composition of wheat straw, the sand barrier has a short effective period and low practical benefits. To this end, since 1983, we changed the use of flax straw as material and set up a sand barrier of 75,000 meters and a pressure of 25 hectares at Minqin Desert Control Station. Experiments over the years have shown that it is more effective than straw barriers and has a good effect on sand fixation and clay