【摘要】 通过含铜废水对土壤污染的调查,研究了水稻产量与土壤有效铜(0.1000N盐酸萃取)、总铜及总铜占土壤阳离子交换量百分比之间的关系,从对作物毒性和健康安全两方面考虑,得出土壤铜的最高容许浓度为:土壤总铜不得超过土壤阳离子交换量的5%,即每毫克当量阳离子交换量/100g干土,铜的最高容许浓度为15ppm。更多还原

【Abstract】 This paper studied the relation between the rice yield & available copper, total copper, and total copper to cation exchange capacity (CEC)% of soil, respectively, through investigation of the effect of copper-containing waste water on soil pollution. From considerations of both phytotoxicity of copper in soil and rice copper level for healthy safety, we concluded that soil total copper level must not exceed 5% of soil CEC, i. e. every mmol/L of CEC per 100 gram soil, and maximum allowable, concentration of copper in soil is 15ppm.更多还原