不同施肥措施对重金属污染农田土壤-水稻重金属含量的影响
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摘要
为探索基于现有种植制度下,不同施肥措施对重金属污染农田土壤修复治理效果,本研究通过田间试验,分析化肥单施、化肥配施石灰、化肥和有机肥配施、化肥有机肥和石灰配施对农田土壤镉、汞、砷、铅和铬5种重金属含量的影响。结果表明,土壤重金属镉和砷含量超标的污染农田中,以上四种施肥措施可以使当季土壤镉、砷、铅和铬含量分别降低0.22～0.31mg/kg、7.6～13.8mg/kg、15.17～24.23mg/kg和1.53～5.93mg/kg。成熟期水稻籽粒重金属镉含量下降0.539～0.816mg/kg,汞、砷和铅分别降低0.001～0.002 mg/kg、0.021～0.032 mg/kg和0.022～0.061 mg/kg。
In order to explore the effect of different fertilization measures on remediation of Heavy Metal Contaminated Farmland Soil under the existing cropping system. In this study,Analysis of effects of 5 heavy metals on cadmium,mercury,arsenic,lead and chromium in farmland soil by different fertilization measures on chemical fertilizer single application,chemical fertilizer combined with calcium lime,chemical fertilizer and organic fertilizer application,chemical fertilizer and organic fertilizer and calcium lime combined application. The result shows that,The above four agronomic measures can reduce the content of 0.22-0.31 Cd mg/kg,7.6-13.8 As mg/kg,15.17-24.23 Pb mg/kg and 1.53-5.93 Cr mg/kg in the soil,respectively. The cadmium content in mature rice grain decreased by 0.539-0.816 mg/kg. Mercury,arsenic and lead decreased0.001-0.002 mg/kg,0.021-0.032 mg/kg and 0.022-0.061 mg/kg,respectively.
In order to explore the effect of different fertilization measures on remediation of Heavy Metal Contaminated Farmland Soil under the existing cropping system. In this study,Analysis of effects of 5 heavy metals on cadmium,mercury,arsenic,lead and chromium in farmland soil by different fertilization measures on chemical fertilizer single application,chemical fertilizer combined with calcium lime,chemical fertilizer and organic fertilizer application,chemical fertilizer and organic fertilizer and calcium lime combined application. The result shows that,The above four agronomic measures can reduce the content of 0.22-0.31 Cd mg/kg,7.6-13.8 As mg/kg,15.17-24.23 Pb mg/kg and 1.53-5.93 Cr mg/kg in the soil,respectively. The cadmium content in mature rice grain decreased by 0.539-0.816 mg/kg. Mercury,arsenic and lead decreased0.001-0.002 mg/kg,0.021-0.032 mg/kg and 0.022-0.061 mg/kg,respectively.
引文
[1]孙涛,陆扣萍,王海龙.不同淋洗剂和淋洗条件下重金属污染土壤淋洗修复研究进展[J].浙江农林大学学报,2015,32(1):140-149.SUN Tao,LU Kouping,WANG Hailong.Advance in washing technology for remediation of heavy metal contaminated soils:effect of eluants and washing conditions[J].Journal of Zhejiang A&F University,2015.32(1):140-149.
[2]朱雅兰.重金属污染土壤植物修复的研究进展与应用[J],湖北农业科学,2010,49(6):1495-1499.ZHU Ya-lan.Research Progress and Application of Phytoremediation for Heavy Metal Contaminated Soil.Hubei Agricultural Sciences.2010,49(6):1495-1499.
[3]杨海征.鸡粪堆肥对重金属污染土壤茼蒿品质、土壤Cu、Cd形态和酶活性影响[D].武汉:华中农业大学,2009.YANG Hai-zheng.Effects of chicken manure compost on the quality of chrysanthemum,soil Cu、Cd fractions and enzymes activities in heavy metal contaminated soils[D].Wuhan:Huazhong Agricultural University,2009.
[4]张青.改良剂对镉锌复合污染土壤修复作用及机理研究[D].北京:中国农业科学院,2005.ZHANG Qing.Effects and mechanism of remediation of amendments in Cd-Zn contaminated[D].Wuhan:Chinese Academy of Agricultural Sciences Master Thesis.2005,6.
[5]农业部办公厅关于印发《全国农产品产地土壤重金属安全评估技术规定》的通知(农办科[2015]42号).
[6]中华人民共和国国家标准《食品安全国家标准食品中污染物限量》(GB2762-2017),中华人民共和国国家卫生和计划生育委员会国家食品药品监督管理总局发布,2017(9):2-9.
[2]朱雅兰.重金属污染土壤植物修复的研究进展与应用[J],湖北农业科学,2010,49(6):1495-1499.ZHU Ya-lan.Research Progress and Application of Phytoremediation for Heavy Metal Contaminated Soil.Hubei Agricultural Sciences.2010,49(6):1495-1499.
[3]杨海征.鸡粪堆肥对重金属污染土壤茼蒿品质、土壤Cu、Cd形态和酶活性影响[D].武汉:华中农业大学,2009.YANG Hai-zheng.Effects of chicken manure compost on the quality of chrysanthemum,soil Cu、Cd fractions and enzymes activities in heavy metal contaminated soils[D].Wuhan:Huazhong Agricultural University,2009.
[4]张青.改良剂对镉锌复合污染土壤修复作用及机理研究[D].北京:中国农业科学院,2005.ZHANG Qing.Effects and mechanism of remediation of amendments in Cd-Zn contaminated[D].Wuhan:Chinese Academy of Agricultural Sciences Master Thesis.2005,6.
[5]农业部办公厅关于印发《全国农产品产地土壤重金属安全评估技术规定》的通知(农办科[2015]42号).
[6]中华人民共和国国家标准《食品安全国家标准食品中污染物限量》(GB2762-2017),中华人民共和国国家卫生和计划生育委员会国家食品药品监督管理总局发布,2017(9):2-9.