不同形态微塑料对粪源重金属在土壤中迁移的影响  

Effect of Different Forms of Microplastic Fibers on Migration of Heavy Metals from Manure in Soil

作　　者：李林菲 刘朔 牛世华 廖新俤[1,2,3] 邢斯程 LI Linfei;LIU Shuo;NIU Shihua;LIAO Xindi;XING Sicheng(College of Animal Science,South China Agricultural University,Guangzhou,Guangdong 510642,China;Guangdong Engineering Technology Research Center of Livestock and Poultry Waste Treatment and Resource Utilization,Guangzhou,Guangdong 510642,China;Key Laboratory of Chicken Genetics,Breeding and Reproduction,Ministry of Agriculture,Guangzhou,Guangdong 510642,China)

机构地区：[1]华南农业大学动物科学学院,广东广州510642 [2]广东省畜禽废弃物处理与资源化利用工程技术研究中心,广东广州510642 [3]农业部鸡遗传育种与繁殖重点实验室,广东广州510642

出　　处：《家畜生态学报》2024年第8期53-61,共9页Journal of Domestic Animal Ecology

基　　金：国家自然科学基金项目(32002221);国家现代农业产业技术体系项目(CARS-40)。

摘　　要：为探究不同形态微塑料(Microplastics,MP)对土壤中的粪源重金属迁移的影响,选用了不同形态大小的聚丙烯(Polypropylene,PP)作为微塑料原料,以蛋鸡粪便作为粪源模型。将两种不同尺寸的微塑料碎片和两种不同直径的微塑料纤维以1%的添加量添加至土壤,同时粪便添加量为10%。结果表明,不同形态微塑料对不同重金属的迁移产生了不同程度的影响。具体而言,土壤中的微塑料对铜(Cu)的迁移具有抑制作用,而且微塑料尺寸越小,抑制作用越强,小尺寸碎片状塑料对Cu的吸附效果最显著。另外土壤中的微塑料对锌(Zn)和镉(Cd)的迁移则呈现出促进作用,但对铅(Pb)的迁移影响微弱。土壤电导率受到纤维状微塑料的影响而减缓降低速度。In order to study the effects of different forms of Microplastics(MP)on the migration of heavy metals from livestock and poultry manure in soil,different forms of Polypropylene(PP)were selected as raw materials for Microplastics,and layer hen's manure was taken as the manure source model.Two kinds of micro-plastic fragments with different sizes and two kinds of micro-plastic fibers with different diameters were added into the experimental soil with the proportion of 1%and 10%respectively.The results showed that different forms of microplastics had different effects on the migration of different heavy metals.The microplastics in soil inhibited the migration of Cu,and the smaller the form,the stronger the inhibition.The optimal absorption effect of Cu was observed in small fragmented plastics.Additionally,the microplastic in soil accelerated the migration of Zn and Cd,but exerted little impact on the migration of Pb.The soil electrical conductivity was slowed down under the influence of fibrous microplastics.

关 键 词：微塑料 土壤 蛋鸡粪 重金属 迁移 

分 类 号：S811.5[农业科学—畜牧学]