农业资源与环境学报2024，Vol.41Issue(4)：826-834,9.DOI:10.13254/j.jare.2023.0454
生物炭对土壤无机氮含量影响的Meta分析
A Meta-analysis of the effects of biochar on soil inorganic nitrogen content
摘要
Abstract
To explore the effect of biochar on soil inorganic nitrogen(SIN)content in farmland,375 sets of data of 65 published literatures from 2013 to 2023 were employed to analyze the response of biochar application to soil inorganic nitrogen content by Meta analysis.The results showed that biochar significantly increased SIN content in the area with an average annual rainfall of 600-1 000 mm,and the increase was obvious when the rainfall was 957 mm.When annual average temperature was more than 8℃,the enhanced SIN was also noticed.Further the influences of biochar on SIN content were also regulated by soil texture.It was increased by 21.85% and 11.05% for sandy soil and loam,respectively.In field,less than 120 kg·hm-2 N application rate promoted SIN content;whereas for culture experiment,the increased SIN content was induced when N was not applied.Substantially,when biochar application rate was less than 0.5%,SIN was increased significanty by 17.70% under conditions of field.The duration of biochar application also modulated the effects of biochar on SIN.The enhanced influence of biochar on SIN was observed when biochar was applied more than one year.In summary,the factors average annual rainfall,annual temperature,soil textures,nitrogen application rate,and biochar application rate along with biochar returning years impact the influences of biochar on SIN.关键词
生物炭/土壤无机氮/年均降雨量/年均气温/Meta分析Key words
biochar/soil inorganic nitrogen/average annual rainfall/average annual temperature/Meta analysis分类
农业科技引用本文复制引用
罗灏程,刘秋霞,王劲松,董二伟,黄晓磊,王媛,焦晓燕..生物炭对土壤无机氮含量影响的Meta分析[J].农业资源与环境学报,2024,41(4):826-834,9.基金项目
山西省基础研究计划项目(202103021223126) （202103021223126）
山西农业大学科研专项(SXBYKY2022012) （SXBYKY2022012）
国家现代农业产业技术体系项目(CARS-06-14.5-A20) Shanxi Basic Research Program(202103021223126) （CARS-06-14.5-A20）
Research Project of Shanxi Agricultural University(SXBYKY2022012) （SXBYKY2022012）
China Agriculture Research System(CARS-06-14.5-A20) （CARS-06-14.5-A20）
