华中农业大学学报2025，Vol.44Issue(4)：11-21,11.DOI:10.13300/j.cnki.hnlkxb.2025.04.002
生物炭对酸性土壤改良效果及机制的研究进展
Progress on effects and mechanism of biochar on amelioration of acidified soils
摘要
Abstract
The problem of acidification in soil is widespread in China,causing serious impacts on the agricultural production and environmental safety.Biochar,as an excellent material for ameliorating acidic soils,has received extensive attention in recent years.However,there is relatively few studies on the effects and mechanism of biochar on ameliorating acidic soils.This article reviewed the research status of biochar in ameliorating acidic soil from three aspects including reducing acidity,improving the physical and chemical properties and biological characteristics of soil,and promoting the growth of crops.The mechanism of bio-char reducing the acidity in soil including the binding of alkaline substances in biochar with H+,the esterifi-cation,adsorption and complexation of oxygen-containing function groups with exchangeable A13+in soil was clarified.The activities of microorganisms in soil were promoted by changing the environment in soil to regulate the growth of microorganisms in soil.The environment for the growth of crop roots was improved to increase the abundance of microbial communities of rhizosphere and regulate the development of root.The studies on the effects and mechanism of biochar on the amelioration of acidified soils were prospected to provide theoretical basis for alleviating the acidification in soils and promoting sustainable utilization of acidic soils.关键词
生物炭/酸性土壤改良/土壤微生物/铝毒Key words
biochar/amelioration of acidic soils/microorganisms in soil/toxicity of aluminum分类
农业科技引用本文复制引用
胡仁,龙巧玲,王力敏,胡红青,谭文峰,伍玉鹏,林杉..生物炭对酸性土壤改良效果及机制的研究进展[J].华中农业大学学报,2025,44(4):11-21,11.基金项目
国家重点研发计划项目(2021YFD1901202) （2021YFD1901202）
