土壤2023，Vol.55Issue(6)：1316-1322,7.DOI:10.13758/j.cnki.tr.2023.06.019
三种森林土壤中莠去津对蚯蚓的毒性效应
Toxic Effects of Atrazine on Earthworms in Three Forest Soils
摘要
Abstract
The responses of earthworms to atrazine in different concentrations in three kinds of forest soils were quantitatively determined by laboratory test.In the toxicity test,40,80,160,320 and 480 mg/kg were used as exposure concentrations of atrazine,and the fresh weight,body width and mortality of earthworms were measured at 0,7,14,21,28 and 35 d after exposure.The results showed that lethal effect and inhibitory effect of atrazine on the fresh weight and body width of earthworms increased with the exposure concentration and time with obvious time-effect and dose-effect relationship.At the same concentration,the effect of atrazine on earthworms in the three soils was expressed as typical yellow brown soil>weakly developed yellow brown soil>lime soil.The toxic effect of atrazine on earthworms was negatively correlated with the content of organic matter in soil,and positively correlated with the content of total phosphorus and available phosphorus.The results of the study revealed that the toxic effects of atrazine on earthworms in different types of soil differed significantly,and correlated well with soil fertility,which could provide basic reference data for assessing the environmental risks of atrazine use in agriculture and forestry.关键词
莠去津/蚯蚓/森林土壤/剂量效应/土壤性质Key words
Atrazine/Earthworm/Forest soil/Dose effect/Soil properties分类
农业科技引用本文复制引用
苗桓,许加明,虞悦,卜元卿,王艮梅,周蓉..三种森林土壤中莠去津对蚯蚓的毒性效应[J].土壤,2023,55(6):1316-1322,7.基金项目
国家重点研发计划项目(2018YFC1801105)资助. （2018YFC1801105）
