Distribution and Variation of Spring Snow Cover in Laohugou Watershed of the Qilian Mountains
YANG Jun-hua, QIN Xiang, WU Jin-kui, DU Wen-tao, SUN Wei-jun, ZHANG Ming-jie, ZHANG Xue-yan, CHEN JI-zhu
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2012, (5): 1091 -1098 .  DOI: 10.7522/j.issn.1000-0240.2012.0133