陕西榆林城东北郊有一个名叫红山的高地,又叫“七里沙”。记者来到这里,看到的是一派松涛阵阵、郁郁葱葱的盎然生机。想不到20多年前,这里还是一块黄沙滚滚、植被稀疏的荒凉不毛之地。从70年代开始,当地干部、群众奋起与沙魔抗争,在流动沙丘上植树种 Yulin City, northeastern outskirts of Shaanxi Province has a hill called Hongshan Highlands, also known as “seven miles of sand.” Reporter came here to see is a school of bursts of waves, lush vitality. Think of more than 20 years ago, here is a yellow sand billowing, sparse vegetation in desolate barren land. Since the 1970s, local cadres and the masses have risen to fight the evil spirits and planted trees on mobile sand dunes