TY - Acta Geographica Sinica A1 - ZHAO Rongqin, HUANG Xianjin, PENG Buzhuo T1 - Research on Carbon Cycle and Carbon Balance of Nanjing Urban System Y1 - 2012-06-20 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 758 EP - 770 VL - 67 IS - 6 UR - {https://www.geog.com.cn/EN/10.11821/xb201206004} N1 - 10.11821/xb201206004 ER -