本文通过流沙面积调查,沙丘移动和有关的气象观测,结合五十年代观测资料,对比分析了沙井子地区近四十年来风沙活动状况,认为本区风沙活动从整体上是逐渐减弱的,但并不排除沙丘活化,风沙再起的可能性,并探讨了治沙造林控制风沙活动的生态效益。 Based on the investigation of quicksand area, the movement of sand dunes and the related meteorological observations, and combining with the observation data in the 1950s, the paper analyzes the status of sand blown sand movement in Shajingzi area in recent forty years, and considers that the sand blown sand movement in this area is gradually weakened, Do not rule out the possibility of activating sand dunes and re-aerating, and discuss the ecological benefits of sand control and afforestation activities.