TY - Journal of Yangtze River Scientific Research Institute A1 - SUN Zhi-wei, LIANG Yue, NIU Xin-qiang T1 - Spatiotemporal Variation Characteristics of Baseflow in the Upper Yangtze River Based on Digital Filter Method Y1 - 2023-11-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 23 EP - 28 VL - 40 IS - 11 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20230043 ER -