中国农业大学学报2025，Vol.30Issue(4)：179-191,13.DOI:10.11841/j.issn.1007-4333.2025.04.15
基于微塑料生态风险值的畜禽粪便农田承载力估算
Estimation on farmland bearing capacity of animal manure based on microplastic ecological risk value
摘要
Abstract
To prevent microplastic pollution in farmland soil,the agriculture and animal husbandry production system of Xinjiang Production and Construction Corps(XPCC)was taken as the research object.A soil microplastics toxicity database was established,and the species sensitivity distribution method was employed to determine the predicted no-effect concentration of soil microplastics(PNECsoil).The risk quotient method and soil environmental impact prediction method were used to assess the environmental capacity of microplastics in farmland soil quantitatively.Additionally,the material flow analysis method was utilized to estimate farmland bearing capacity of animal manure.The results showed that:1)The farmland bearing capacity of animal manure of swine,dairy cattle,beef cattle,broiler and layer in XPCC was 79.7 heads,0.7 heads,1.9 heads,476.2 birds and 69.9 birds per hectare,respectively.Due to the relatively high mass fraction of microplastics in animal manure,microplastics became the factor limiting the application of manure.2)When the amount of microplastics in manure and agricultural film was reduced by 30.0％,the farmland bearing capacity of animal manure could be increased by 42.8％and 8.5％.In terms of farmland soil ecological risk prevention and control,microplastics was emerged as one of the limiting factors for the safe application of animal manure and the bearing capacity of farmland.It is recommended to enhance the monitoring of microplastics animal feed and drinking water,to prevent and control microplastic pollution in the breeding process and ensure the safe return of manure to the fields and healthy soil.关键词
畜禽粪便农田承载力/微塑料/生态风险评估/土壤环境/新疆生产建设兵团Key words
farmland bearing capacity of animal manure/microplastics/ecological risk assessment soil environment/Xinjiang Production and Construction Corps分类
环境科学引用本文复制引用
楚天舒,陆远,杨宇辰,贺雪妮,赵智强,任杰,蒲胜海,吴湘琳,马兴旺..基于微塑料生态风险值的畜禽粪便农田承载力估算[J].中国农业大学学报,2025,30(4):179-191,13.基金项目
"天山英才"培养计划(2022TSYCLJ0050) （2022TSYCLJ0050）
农业科技创新稳定支持项目(xjnkywdzc-2023005-1) （xjnkywdzc-2023005-1）
农业农村部西北绿洲农业环境重点实验室开放基金(XBLZ-20225) （XBLZ-20225）
