TY - Journal of Yangtze River Scientific Research Institute A1 - XU Ping, HONG Xiao-feng T1 - Field Scientific Observation and Investigation by Yangtze River Scientific Research Institute: Retrospect and Prospect Y1 - 2021-10-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 76 EP - 81 VL - 38 IS - 10 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20210572 ER -