Study of NDVI and Climate Change in Maqu County,Upstream of Yellow river
CHEN Shi-qiang, WEN Li-juan, LÜ Shi-hua, CHEN Changping, AO Yin-huan, ZHANG Yü, BAO Yan
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2007, (1): 131 -136 .  DOI: 10.7522/j.issn.1000-0240.2007.0020