@article{徐树林:62, author = {徐树林, 那平山}, title = {毛乌素沙地柳湾林死亡原因的研究}, publisher = {中国沙漠}, year = {1989}, journal = {中国沙漠}, volume = {9}, number = {4}, eid = {62}, numpages = {11}, pages = {62}, keywords = {}, url = {http://www.desert.ac.cn/CN/abstract/article_3604.shtml}, doi = {} }