浅析土壤重金属形态转化与土壤污染治理
|
摘要
土壤重金属的环境有效性、生物毒性、迁移性与重金属的形态密切相关,不同形态的重金属在土壤中的环境行为不同,从而导致各形态的重金属对于土壤植被和作物的毒性不同。本文综述了土壤中常见的重金属形态,对比了不同形态重金属的生物活性和可迁移性,总结了不同重金属形态之间转化的主要影响因素。本文从改变土壤重金属形态、降低重金属毒性的角度,分析了土壤重金属污染治理与土壤重金属形态转化之间的联系,对寻找更为合理有效的重金属土壤污染治理方法具有一定的指导意义。
The environmental availability, biological toxicity and migration of heavy metals in soils are closely related to the speciation of heavy metals. Different speciation of heavy metals have different environmental behaviors in soil, resulting in different speciation of heavy metals having different toxicity to soil vegetation and crops. The common speciation of heavy metals in soils were reviewed in this paper. At the same time, the bioactivity and migrability of different heavy metals were compared and its main influencing factors were summarized. In order to find more reasonable and effective methods to control heavy metals contaminated soil, from the perspective of reducing the toxicity of heavy metals by changing the speciation of heavy metals, the relationship between soil pollution control and conversion of heavy metals speciation was analyzed.
The environmental availability, biological toxicity and migration of heavy metals in soils are closely related to the speciation of heavy metals. Different speciation of heavy metals have different environmental behaviors in soil, resulting in different speciation of heavy metals having different toxicity to soil vegetation and crops. The common speciation of heavy metals in soils were reviewed in this paper. At the same time, the bioactivity and migrability of different heavy metals were compared and its main influencing factors were summarized. In order to find more reasonable and effective methods to control heavy metals contaminated soil, from the perspective of reducing the toxicity of heavy metals by changing the speciation of heavy metals, the relationship between soil pollution control and conversion of heavy metals speciation was analyzed.
引文
[1] 韩春梅,王林山,巩宗强,等.土壤中重金属形态分析及其环境学意义[J].生态学杂志,2005,24(12):1499- 1502.
[2] 高芳蕾,董岩翔,王世纪.矿区土壤重金属元素的形态分布及生物活性[J].安徽农业科学,2009,37(12):5614- 5616.
[3] 吴丽娟,任兰,陆喜红,等.南京市农用地土壤中重金属形态特征分析[J].环境监测管理与技术,2018,30(4):57- 64.
[4] 林琦,郑春荣,陈怀满.根际环境中镉的形态转化[J].土壤学报,1998,35(4):461- 467.
[5] 莫争,王春霞,陈琴,等.重金属Cu、Pb、Zn、Cr、Cd在土壤中的形态分布和转化[J].农业环境保护,2002,21(1):9- 12.
[6] 杨秀敏,任广萌,李立新,等.土壤pH值对重金属形态的影响及其相关性研究[J].中国矿业,2017,26(6):79- 83.
[7] 李宗利,薛澄泽.污灌土壤中Pb、Cd形态的研究[J].农业环境保护,1994,13(4):152- 157.
[8] ZHOU D M,WANG Y J,CANG L,et al.Adsorption and cosorption of cadmium and glyphosate on soils with different characteristics[J].Chemosphere,2004,57(10):1237- 1244.
[9] 王翠红,周清,黄启为,等.不同类型水稻土上外源镉对玉米生产发育影响的研究[J].农业环境保护,2001,20(5):293- 296.
[10] 钟晓兰,周生路,黄明丽,等.土壤重金属的形态分布特征及其影响因素[J].生态环境学报,2009,18(4):1266- 1273.
[11] 王豪吉,江滔,苏淑敏,等.水稻秸秆用于修复Cr(VI)污染土壤的研究[J].环境影响评价,2017,39(3):79- 83.
[12] 胡星明,袁新松,王丽平,等.磷肥和稻草对土壤重金属形态、微生物活性和植物有效性的影响[J].环境科学研究,2012,25(1):77- 82.
[2] 高芳蕾,董岩翔,王世纪.矿区土壤重金属元素的形态分布及生物活性[J].安徽农业科学,2009,37(12):5614- 5616.
[3] 吴丽娟,任兰,陆喜红,等.南京市农用地土壤中重金属形态特征分析[J].环境监测管理与技术,2018,30(4):57- 64.
[4] 林琦,郑春荣,陈怀满.根际环境中镉的形态转化[J].土壤学报,1998,35(4):461- 467.
[5] 莫争,王春霞,陈琴,等.重金属Cu、Pb、Zn、Cr、Cd在土壤中的形态分布和转化[J].农业环境保护,2002,21(1):9- 12.
[6] 杨秀敏,任广萌,李立新,等.土壤pH值对重金属形态的影响及其相关性研究[J].中国矿业,2017,26(6):79- 83.
[7] 李宗利,薛澄泽.污灌土壤中Pb、Cd形态的研究[J].农业环境保护,1994,13(4):152- 157.
[8] ZHOU D M,WANG Y J,CANG L,et al.Adsorption and cosorption of cadmium and glyphosate on soils with different characteristics[J].Chemosphere,2004,57(10):1237- 1244.
[9] 王翠红,周清,黄启为,等.不同类型水稻土上外源镉对玉米生产发育影响的研究[J].农业环境保护,2001,20(5):293- 296.
[10] 钟晓兰,周生路,黄明丽,等.土壤重金属的形态分布特征及其影响因素[J].生态环境学报,2009,18(4):1266- 1273.
[11] 王豪吉,江滔,苏淑敏,等.水稻秸秆用于修复Cr(VI)污染土壤的研究[J].环境影响评价,2017,39(3):79- 83.
[12] 胡星明,袁新松,王丽平,等.磷肥和稻草对土壤重金属形态、微生物活性和植物有效性的影响[J].环境科学研究,2012,25(1):77- 82.