沙柳历来是沙区固沙造林的先锋树种之一,在我国“三北”防护林建设和沙区人民的生产、生活中占有相当重要的位置。据查,我省榆林地区共有天然林和人工林约600万亩,其中沙柳林380万亩,占63%左 Salix has always been one of the pioneer tree species for sandification and afforestation in sandy areas. It occupies a very important position in the construction of the “Three North” shelterbelt in our country and the production and livelihood of people in the sand area. According to the investigation, there are altogether 6 million mu of natural forests and plantations in Yulin area in our province, including 380 mu of Salix forests, accounting for 63% of the total