TY - Acta Geographica Sinica A1 - LIU Ai-xia, LU Jin-fa T1 - Relations between Grain-size of Suspended Sediments and River Basin Environment in the Middle Yellow River Y1 - 2002-03-25 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 232 EP - 237 VL - 57 IS - 2 UR - {https://www.geog.com.cn/EN/10.11821/xb200202014} N1 - 10.11821/xb200202014 ER -