TY - Wetland Science A1 - T1 - Spatial-temporal Variation Characteristics of Baiyangdian from 1990 to 2017 Y1 - 2019-08-30 JF - Wetland Science JO - Wetland Science SP - 436 EP - 444 VL - 17 IS - 4 UR - http://wetlands.neigae.ac.cn N1 - 10.13248/j.cnki.wetlandsci.2019.04.008 ER -