不同农作物对镉污染土壤富集情况的研究
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摘要
对四川省某矿山镉污染地区进行实地考察和样本采集,测定土壤中镉总量、土壤中镉有效态含量、不同种类农作物可食用部分镉含量、不同农作物的镉富集系数,并对测定结果进行比较和分析。测定结果表明,土壤中镉总量和有效态含量均与农作物可食用部分镉含量不成正相关关系,不同种类的农作物对镉的富集情况相差较大,同一作物不同部分镉富集情况亦不相同。
With field investigation and sample collection of a cadmium-contaminated mine areas in Sichuan province, the total amount of cadmium in the soil,the available cadmium in the soil, the cadmium in the edible part of different crops and the cadmium concentration coefficient of different crops were gauged. Then, the results were compared and analyzed. The results show that the total amount of cadmium and the available cadmium in the soil are not in positive correlation to the cadmium content in edible parts of crops. The cadmium concentration in different crops varies greatly and the concentration in different parts of the same crop is also different.
With field investigation and sample collection of a cadmium-contaminated mine areas in Sichuan province, the total amount of cadmium in the soil,the available cadmium in the soil, the cadmium in the edible part of different crops and the cadmium concentration coefficient of different crops were gauged. Then, the results were compared and analyzed. The results show that the total amount of cadmium and the available cadmium in the soil are not in positive correlation to the cadmium content in edible parts of crops. The cadmium concentration in different crops varies greatly and the concentration in different parts of the same crop is also different.
引文
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[2] 环境保护部,国土资源部.全国土壤污染状况调查公报[J].中国环保产业,2014,36(5):10-11.
[3] MANZ M,WEISSFLOG L,KüHNE R,et al.Ecotoxicological hazard and risk assessment of heavy metal Contents in agricultural soils of central Germany[J].Ecotoxicology & Environmental Safety,1999,42(2):191-201.
[4] 唐文浩,岳平,陈恒宇.海南岛砖红土壤中铅、隔的化学形态与转化[J].中国生态学农业学报,2009,17(1):145-149.
[5] 钱进,王子健,单孝全,等.土壤中微量金属元素的植物可给性研究进展[J].环境科学,1995,16(6):73-75.
[6] 魏树和,周启星.重金属污染土壤植物修复基本原理及强化措施探讨[J].生态学杂志,2004,23(1):65-72.
[7] 刘霞,刘树庆,王胜爱,等.河北主要土壤中重金属镉形态与土壤酶活性的关系[J].河北农业大学学报,2002,25(1):5-8.
[8] 代允超.土壤中镉、砷生物有效性影响因素及评价方法研究[D].咸阳:西北农林科技大学,2018.
[9] 怀俊晟,沈艳.土壤重金属形态分析质量控制研究[J].广东化工,2018,45(12):104-106.