TY - Acta Geographica Sinica A1 - Zhang Chaosheng, Zhang Shen, He Jianbang T1 - SPATIAL DISTRIBUTION CHARACTERISTICS OF HEAVY METALS IN THE SEDIMENTS OF CHANGJIANG RIVER SYSTEM ——SPATIAL AUTOCORRELATION AND FRACTAL METHODS Y1 - 1998-01-15 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 87 EP - 96 VL - 53 IS - 1 UR - {https://www.geog.com.cn/EN/10.11821/xb199801011} N1 - 10.11821/xb199801011 ER -