黄河上中游地区的青海、甘肃、宁夏、陕西、山西、内蒙古 6省区沙棘资源面积占我国沙棘资源总量的80 %以上 ,作为我国沙棘资源建设与开发利用的主战场具有十分重要的战略地位。产生于该地区的沙棘文献在全国沙棘文献中占有相当的比例 ,为我国沙棘开发利用事业作出了巨大的贡献 Seabuckthorn resources in Qinghai, Gansu, Ningxia, Shaanxi, Shanxi and Inner Mongolia provinces in the upper and middle reaches of the Yellow River account for more than 80% of the total seabuckthorn resources in China, and are of great strategic importance as the main battlefield for the construction, development and utilization of seabuckthorn resources in China . Seabuckthorn literature originating in the area occupies a considerable proportion of the national seabuckthorn literature and has made a tremendous contribution to the development and utilization of seabuckthorn in China