TY - Tropical Geography A1 - GU Wenjuan,OU Xiangjun,YE Lei,YANG Baobao T1 - Spatial Structure of Urban Agglomeration in the Yangtze River Delta Based on the Analysis of Element Flow Y1 - 2015-11-05 00:00:00.0 JF - Tropical Geography JO - Tropical Geography SP - 833 EP - 841 VL - 35 IS - 6 UR - {https://www.rddl.com.cn/EN/10.13284/j.cnki.rddl.002758} N1 - 10.13284/j.cnki.rddl.002758 ER -