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An example of ecogeochemical assessment for agroecosystems: a study of Cd in Chengdu economic region
YANG Zhong-Fang HOU Jing-Xie TU Chao CHEN Jia-Wei JIA Hua-Ji HUANG Yong LI Kuo
Earth Science Frontiers . 2008, (
5
): 23 -35 .
