中国生态农业学报（中英文）2025，Vol.33Issue(7)：1275-1288,14.DOI:10.12357/cjea.20240800
基于微生物矿化的生态修复措施下边坡土壤理化特性与微生物群落的协同演变研究
The synergistic evolution of soil physicochemical properties and microbial com-munities in slope soils with the ecological restoration measures based on microbi-ally induced carbonate precipitation
摘要
Abstract
This study focused on the impact of ecological restoration measure of MICP-TBS(microbial induced carbonate precipita-tion-thick-layer basematerial spraying)on slope soils,with an emphasis on elucidating the synergistic evolutionary mechanisms between soil physicochemical properties and microbial communities.The findings revealed that ecological restoration measure of MICP-TBS(XF treatment)improved the soil physicochemical characteristics.Compared to the control group,soil pH increased from 4.30 to 5.20,organic matter content increased from 8.06 to 15.67 g·kg-1,total nitrogen content increased from 0.32 to 0.53 g·kg-1,al-kali-hydrolyzable nitrogen content increased from 24.37 to 43.60 mg·kg-1,available phosphorus content increased from 0.27 to 15.88 mg·kg-1,and available potassium content increased from 70.00 to 110.67 mg·kg-1,indicating a significant enhancement in soil fertil-ity.α diversity indices demonstrated that XF treatment resulted in higher species richness in the microbial community.β diversity analysis further confirmed significant differences in microbial community composition between the XF and control treatments.The XF treatment showed enrichment of Actinobacteriota,γ-Proteobacteria,Cyanobacteria,and Bacteroidota.Notably,the relative abund-ances of beneficial microorganisms,such as Bradyrhizobium,Burkholderia-Caballeronia-Paraburkholderia,and Sinomonas signific-antly increased,thereby enhancing organic matter decomposition and carbon-nitrogen nutrient cycling.In contrast,the control group was dominated by indigenous microorganisms such as Chloroflexi and Acidobacteriota,which maintain basic soil functions.Avail-able phosphorus content was determined to be the most crucial environmental factor through distance-based redundancy analysis,with explanatory power as high as 98.34％.Correlation analysis between microbial species and environmental factors revealed that unclassified genera in the B12-WMSP1 order were extremely significantly negatively correlated with alkali-hydrolyzable nitrogen,whereas Mycobacterium showed extremely significant positive correlations with alkali-hydrolyzable nitrogen and organic matter con-tent.Unclassified genera under the JG30-KF-CM45 family were significantly positively correlated with available phosphorus.These findings clarify the synergistic evolutionary patterns of soil physicochemical properties and microbial communities under ecological restoration measures,while also provide important theoretical foundations and practical guidance for slope ecological restoration projects.This study has significant implications for advancing the optimization and application of ecological restoration technologies.关键词
微生物诱导碳酸盐沉积技术/生态修复/边坡土壤/土壤理化性质/微生物群落Key words
microbially induced carbonate precipitation/ecological restoration/slope soil/soil physicochemical properties/microbial communities分类
资源环境引用本文复制引用
连进禄,罗立津,傅志森,余芳,苑华臻,丁聪,聂毅磊,郑军荣..基于微生物矿化的生态修复措施下边坡土壤理化特性与微生物群落的协同演变研究[J].中国生态农业学报（中英文）,2025,33(7):1275-1288,14.基金项目
福建亿力集团有限公司研究开发项目(ZYSSDL20240523014)资助 This study was supported by the Research and Development Project of Fujian Yili Group Co.,Ltd.(ZYSSDL20240523014). （ZYSSDL20240523014）
