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Metal accumulation by plants growing in China: Capacity, synergy, and moderator effects
Ecological Engineering ( IF 3.8 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.ecoleng.2020.105790 Meifang Zhao , Suping Zeng , Shuguang Liu , Zhiqiang Li , Lei Jing
Ecological Engineering ( IF 3.8 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.ecoleng.2020.105790 Meifang Zhao , Suping Zeng , Shuguang Liu , Zhiqiang Li , Lei Jing
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Abstract Plant accumulation of heavy metals (HMs) has become a global concern, however, the bio-accumulation distributions, their inter-correlations, and relationships with influencing factors remain unknown at the national scale in China. Here, we investigate the bio-accumulation capacity, as indicated as bio-concentration factors (BCFs), for chromium (Cr), cadmium (Cd), lead (Pb), copper (Cu), and Zinc (Zn) across plants growing on China (span 22 provinces) and their relationships, based on national meta-analysis of 46 publications (210 species, and 66 families). Results showed that: (1) Plants show diverse capacity of HM accumulation. About 20.6% of the plant tissue cases indicates strong phytoremediation ability for HMs (i.e., Ln BCF > 0), including 38.5% of Cd, 28.5% of Cr, 11.9% of Cu, 7.6% of Pb, and 16.6% of Zn. The families with the greatest numbers of published strong HMs phytoremediation cases are Poaceae, Asteraceae, and Brassicaceae. (2) The capacity to uptake and accumulation one of these HMs is significantly correlated with the ability to absorb the others (p
更新日期：2020-04-01
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