文献类型：期刊文献

英文题名：Effects of microplastics exposure on soil inorganic nitrogen: A comprehensive synthesis

作者：Xiang, Yangzhou[1] Penuelas, Josep[2,3] Sardans, Jordi[2,3] Liu, Ying[4] Yao, Bin[5] Li, Yuan[6]

第一作者：Xiang, Yangzhou

通信作者：Yao, B[1];Li, Y[2]

机构：[1]Guizhou Educ Univ, Sch Geog & Resources, Guiyang 550018, Peoples R China;[2]UAB, Global Ecol Unit, CSIC, CREAF, Bellaterra 08193, Catalonia, Spain;[3]CREAF, Ecol & Forestry Applicat Res Ctr, Cerdanyola Del Valles 08193, Catalonia, Spain;[4]Guizhou Educ Univ, Sch Biol Sci, Guiyang 550018, Peoples R China;[5]Chinese Acad Forestry, Inst Ecol Conservat & Restorat, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[6]Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Herbage Improvement & Grassland Agro, Natl Field Sci Observat & Res Stn Grassland Agroec, Lanzhou 730020, Peoples R China

年份：2023

卷号：460

外文期刊名：JOURNAL OF HAZARDOUS MATERIALS

收录：;EI(收录号：20233714724839);Scopus(收录号：2-s2.0-85170699045);WOS:【SCI-EXPANDED(收录号:WOS:001080427300001)】；

基金：This work was supported by Guizhou Province Ordinary Colleges and Universities Youth Science and Technology talent growth project (QJHKYZ [2021] 246) , Scientific Research Fund Project of Guizhou Education University (2020BS019) , Fundamental Research Funds for the Guizhou Provincial Science and Technology Projects (QKHJC-ZK [2022] YB335) , Natural Science Foundation of China (32101431; 32260725) , Natural Science Foundation of Gansu Province (22JR5RA455) , TED2021-132627B-I00 grant funded by the Spanish MCIN, AEI/10.13039/European Union Next Generation EU/PRTR, Fundacion Ramon Areces project CIVP20A6621, and the Catalan Government grant SGR221-1333.r 10.13039/European Union Next Generation EU/PRTR, Fundacion Ramon Areces project CIVP20A6621, and the Catalan Government grant SGR221-1333.

语种：英文

外文关键词：Ammonium nitrogen; Microplastics pollution; Nitrate nitrogen; Meta-analysis; Soil health; Soil nitrogen dynamics

摘要：Microplastics, a growing environmental concern, impact soil inorganic nitrogen (N) transformation, specifically affecting water-extractable nitrate N (NO -3 -N) and ammonium N (NH+ 4 -N). However, inconsistencies among relevant findings necessitate a systematic analysis. Accordingly, the present meta-analysis addresses these dis-crepancies by evaluating the effects of microplastics on soil inorganic N and identifying key influencing factors. Our meta-analysis of 216 paired observations from 47 studies demonstrates microplastics exposure causes an overall significant reduction of 7.89% in soil NO -3 -N concentration, but has no significant impact on NH+4 -N concentration. Subgroup analysis further revealed effects of microplastics on soil inorganic N were modulated by microplastics characteristics, experimental conditions (exposure time, experimental temperature, plant effects), and soil properties (soil texture, initial soil pH, initial soil organic carbon, soil total N concentration). We found that microplastics exposure above 27 celcius enhances soil NO -3- Nconcentration, a finding linked to specific soil properties and conditions, underscoring the impacts of global warming. Importantly, the microplastics polymer type was the most influential predictor of effects on soil NO -3 -N concentration, while soil NH+4 -N concen-tration was primarily affected by soil texture and microplastics type. These findings illuminate the complex effects of microplastics on soil inorganic N, informing soil management amid increasing microplastics pollution.