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首页> 外文期刊>Plant and Soil >The uptake of copper by plants dominantly growing on copper mining spoils along the Yangtze River, the People's Republic of China
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The uptake of copper by plants dominantly growing on copper mining spoils along the Yangtze River, the People's Republic of China

机译：中华人民共和国长江沿岸的铜矿开采土壤中主要生长的植物对铜的吸收

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摘要

Elsholtzia haichowensis, Commelina communis, and Rumex acetosa are the dominant species growing on the copper mining spoil heaps and copper-contaminated soil along the middle and lower reaches of the Yangtze River. Each has its own ecological habits. Chemical analytical data show that these plants can accumulate copper to various extents, depending on the copper content of the supporting soils and plant species. The highest concentration copper was found in R. acetosa with the leaf copper concentration ranging from 340 to 1102 mg/kg and averaging 601 mg/kg (dry weight basis). C. communis also contained high copper concentration in its leaves ranging from 19 to 587 mg/kg and averaging 157 mg/kg. E. haichowensis has the lowest copper concentration in its leaves from 18 to 391 mg/kg and averaging 102 mg/kg. The copper content of the soils supporting all the species varied to a great extent from place to place. The evidence suggests that E. haichowensis, C. communis, and R. acetosa can serve as pioneer species for reclamation of copper mined land and can be used as model plants for investigation of plant tolerance mechanisms, and geochemical prospecting.
机译：沿河中下游的铜矿渣堆和被铜污染的土壤上生长的主要物种是Elsholtzia haichowensis，Commelina communis和Rumex acetosa。每个人都有自己的生态习惯。化学分析数据表明，这些植物可以根据支持土壤和植物物种的铜含量在不同程度上积累铜。在醋栗中发现最高浓度的铜，叶中铜的浓度范围为340至1102 mg / kg，平均为601 mg / kg（以干重计）。 C. communis的叶子中铜含量也很高，从19到587 mg / kg，平均为157 mg / kg。大肠杆菌中叶片中的铜浓度最低，为18至391 mg / kg，平均为102 mg / kg。支撑所有物种的土壤中的铜含量在各地之间有很大的差异。证据表明，haichowensis，C。communis和R. acetosa可以作为开垦铜矿土地的先驱物种，并且可以用作模型植物来研究植物的耐受机制和地球化学勘探。

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