Research on Vegetation Cycle Change of Three Rivers'Headwater Area of Northwest Sichuan Based on the Wavelet Analysis
ZHAI Yun, XIAN Wei, LUO Xiang, YANG Jie
HUBEI AGRICULTURAL SCIENCES . 2018, (5): 43 -48 .  DOI: 10.14088/j.cnki.issn0439-8114.2018.05.011