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土壤重金属污染对蔬菜生长的抑制作用及其生态毒性
引用本文:宋玉芳,许华夏,任丽萍,宋雪英,龚平.土壤重金属污染对蔬菜生长的抑制作用及其生态毒性[J].农业环境科学学报,2003,22(1):13-15.
作者姓名:宋玉芳  许华夏  任丽萍  宋雪英  龚平
作者单位:1. 中国科学院应用生态研究所,辽宁沈阳,110016
2. 加拿大国家研究院生物技术研究所,蒙特利尔魁北克,H4P2R2
基金项目:国家自然科学基金(20077029),中国科学院沈阳应用生态研究所知识创新重大项目,973项目(G1999011808)
摘    要:采用室内生长箱盆栽试验方法,进行了4种重金属铜、锌、铅、镉与蔬菜(株高、根伸长及株干重)生长的抑制-响应关系研究。结果表明,蔬菜株高与重金属浓度有较好的负相关性(r^2Cu=0.77,r^2Zn=0.96,r^2Pb=0.88,r^2Cd=0.98);根长抑制率与重金属浓度相关性其次(r^2Cu=0.61,r^2Zn=0.88,r^2Pb=0.85,r^2Cu=0.78)。重金属对根伸长抑制作用最明显。蔬菜对铜的毒性响应比其它重金属敏感。蔬菜在重金属严重污染土壤中良好的生长状态,表明重金属通过蔬菜吸收可对人体健康造成潜在影响。

关 键 词:重金属污染  蔬菜  生长  抑制作用  生态毒性  土壤污染
文章编号:1672-2043(2003)01-0013-03
修稿时间:2002年4月29日

Inhibition and Eco-Toxicity of Heavy Metals Pollution on Vegetable Growth in Soils
SONG Yu-fang ,XU Hua-xia ,REN Li-ping ,SONG Xue-ying ,GONG Ping.Inhibition and Eco-Toxicity of Heavy Metals Pollution on Vegetable Growth in Soils[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2003,22(1):13-15.
Authors:SONG Yu-fang  XU Hua-xia  REN Li-ping  SONG Xue-ying  GONG Ping
Institution:SONG Yu-fang 1,XU Hua-xia 1,REN Li-ping 1,SONG Xue-ying 1,GONG Ping 2
Abstract:Dose -response relable between heavy metals(Cu,Zn,Pb and Cd)and inhibition rates(plant size,root elongation,and biomass in dry weigh)of vegetable growth(Chinese cabbages,tomatoes,turnip)was studied.The results indicated t hat a significant negative relationship was found between contents of heavy metals and the plant size r 2Cu =0.77,r 2Zn =0.96,r 2Pb =0.91,r 2Cd =0.98,followed by that of the content s of heavy metals and the root elongations(r 2Cu =0.61,r 2Zn =0.88,r 2Pb =0.79,r 2Cd =0.77).The heavy metals used in the present study exhibited a very obvious inhib ition on root elongations.It has als o discovered that the vegetable were more sensible tow ards copper than other heavy metals.It was shown by the growing status of v egetable in such heavy metals contaminated soil that uptake of heavy metals by vegetable c ould resulted in a potential impact on human health.
Keywords:soil pollution  heavy metal  vegetable  inhibition rate
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