粉煤灰施用对土壤肥力影响的Meta分析  

Meta-Analysis of the Effect of Fly Ash Application on Soil Fertility

作　　者：焦彦举 李泽宇 贾亚敏[1] 赵喜萍 JIAO Yan-ju;LI Ze-yu;JIA Ya-min;ZHAO Xi-ping(College of Water Conservancy Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,Shanxi Province,China)

机构地区：[1]太原理工大学水利科学与工程学院,山西太原030024

出　　处：《节水灌溉》2025年第4期31-37,共7页Water Saving Irrigation

基　　金：吕梁市校地合作重点研发专项(2022XDHZ13);山西省基础研究计划(自由探索类)(202203021221075)。

摘　　要：为探讨工业固体废弃物粉煤灰施用对土壤肥力的影响,采用Meta分析方法对截至2024年的相关文献进行了检索,综合分析了粉煤灰施加量、施加方式、配施物质等因素对土壤理化性质的影响。结果显示:①粉煤灰施用可显著提升土壤的田间持水量、有效养分以及孔隙度,降低受施土壤的容重,其中质量分数大于10%的粉煤灰施用量更有利于土壤田间持水量、有效磷、孔隙度的提高和容重的降低,田间持水量、有效磷、孔隙度分别提高20.9%、144.1%、18.1%,容重降低19.8%,但不利于土壤有效氮含量的提高。②单独施用粉煤灰更有利于土壤孔隙度提高和容重降低。具体而言,孔隙度增加了12.8%,土壤容重降低了7.9%;与有机物料配施相比在提升土壤肥力方面更有优势。③粉煤灰的施用效果受土壤pH和质地影响,酸性土壤中施加粉煤灰更利于有效养分的提升,中性土壤更利于孔隙度的提升和容重的下降;在砂土中施加粉煤灰更利于有效养分的提升,在黏土中更利于孔隙度的提升和容重的下降。综上所述,固体废弃物粉煤灰可作为低产土壤肥力提升的改良剂,综合提升土壤肥力,与有机物料配施对酸性砂土的有效养分含量有较大的提升效果;中性黏土中单独添加10%以上的粉煤灰可改善孔隙结构。To explore the impact of industrial solid waste fly ash application on soil fertility,this study conducted a Meta-analysis of relevant literature up to 2024,and systematically analyzed the effects of factors such as fly ash application rate,application method,and auxiliary materials on soil physicochemical properties.The results showed that:①The application of fly ash can significantly improve the field water holding capacity,available nutrients and porosity of the soil,and reduce the bulk density of the applied soil.The application rate of fly ash with a mass fraction greater than 10%is more effective in improving of soil field water holding capacity,available phosphorus,porosity and reducing bulk density,and the field water holding capacity,available phosphorus and porosity are increased by 20.9%,144.1%and 18.1%,respectively,and the bulk density is reduced by 19.8%,but it is not conducive to the improvement of soil available nitrogen content.②The application of fly ash alone is more conducive to the improvement of soil porosity and the reduction of bulk density.Specifically,the porosity increased by 12.8%and the soil bulk density decreased by 7.9%.Combining fly ash with organic materials has more advantages in improving soil fertility.③The effectiveness of fly ash application is influenced by soil pH and texture.The application of fly ash in acidic soil is more conducive to the increase of available nutrients,whereas in neutral soil,it is more effective in increasing of porosity and the decrease of bulk density;The application of fly ash in sandy soil is more conducive to the improvement of available nutrients,while in clay,it is more conducive to the increase of porosity and the decrease of bulk density.In summary,solid waste fly ash can be used as an improver for the fertility of low yield soil,comprehensively enhancing soil fertility.When combined with organic materials,it has a significant effect on improving the available nutrient content of acidic sandy soil;Applying more than 10%fly ash alone to ne

关 键 词：粉煤灰 土壤改良 低产土壤 土壤肥力 META分析 

分 类 号：S2[农业科学—农业工程] S156.2