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J Integr Plant Biol, 1992, 34 (10): -, Research Article
Characteristics of Phytogeochemistry in Naomuhong Copper Mine Area at the Alasan of Nei Monggol
Kong Ling-shao,Gao Ping, Ren Tian-xiang, Zhang Hua and Yang Shao-ping
doi:
Abstract
Characteristics of element contents(in ash) for 13 plant species in Naomuhong Cu mine area are disscussed. Results show that the level of element contents in sequence is: Mn>Cu> Zn > Cr > Ni>Pb>Co > Cd > Ag. Cu contents exhibit the greatest difference between species, with a 20 fold difference or more oetween maximum and minimum contents. Cu content is maximal in Potaninia mongolica, being from 209 ppm to 1543 ppm at various sites, with a mean of 735.2 ppm; whereas Cu content is minimal in Salsola passerina, being from 18 ppm to 54 ppm at various sites, with a mean of 31.01 ppm. Cu, Zn contents in skarn are more than in granite and those in limestone are mole than in sandstone. Correlation coefficients of linear regression between elements in the plants are of positive values. However, they are not significant between Cd, Ag and other eight elements, and between Cu, Cr et al. six elements are significant respectively. The correlative coefficients between elements in plants and soils are positive, Zn and Pb contents between P. mongolica and soils, and Pb content between Zygophyllum xanthoxylum and soils, and Cu content between Reaumuria soongorica and soils and significant, It is found that Cu phytogeochemical anomalies in P. mongolica and Reaumuria soongorica correlate closely with Cu ore deposit, and the anomalies were found not only in the outcropping ore, but also in the blind ore deposits.
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