水土保持学报2025，Vol.39Issue(5)：1-12,12.DOI:10.13870/j.cnki.stbcxb.2025.05.010
盐碱土与非盐碱土团聚体差异、改良影响及启示
Comparative Analysis of Differences,Improvement Effects,and Implications of Aggregates in Saline-Alkali Soils and Non-Saline-Alkali Soils
摘要
Abstract
[Objective]Soil aggregates serve as crucial indicators of soil fertility,with their stability directly governing the physical,chemical,and biological characteristics of soil.Under saline-alkali conditions,however,aggregates are adversely impacted by high salinity and strong alkalinity,leading to structural degradation and functional deterioration,which severely constrains agricultural productivity.This article aims to summarize the disparities in aggregates between saline-alkali and non-saline-alkali soil and elucidate the factors influencing aggregate formation and stability under saline-alkali conditions.[Methods]The study explored methods and strategies for improving the saline-alkali soil aggregate structure,and the implications of non-saline-alkali soil aggregate research for saline-alkali soil.[Results]Comprehensive analysis indicated that saline-alkali conditions undermined soil structure,diminished microbial diversity and activity,and ultimately led to a decrease in the quantity of macro-aggregates,an increase in the proportion of micro-aggregates,and weakened aggregate stability.In contrast,non-saline-alkali soil exhibited higher quantities of both macro-aggregates and micro-aggregates,a well-defined hierarchical distribution,rich biodiversity,and enhanced aggregate stability,mainly attributed to abundant organic matter content and more dynamic microbial activities.[Conclusion]To improve the aggregate structure of saline-alkali soil,an integrated approach combining hydraulic,physical,chemical,and biological measures is essential.This comprehensive strategy needs to focus on reducing soil salinity and alkalinity levels,regulating soil pH,improving soil structure,enhancing water retention capacity,and increasing nutrient availability.Future research should prioritize developing innovative techniques for aggregate structure assessment,optimizing soil amendment technologies,and integrating multi-scale data to facilitate progressive improvement of saline-alkali soil properties and support sustainable agriculture development.关键词
土壤团聚体/盐碱土/非盐碱土/改良措施/稳定性Key words
soil aggregates/saline-alkali soil/non-saline-alkali soil/soil improvement measures/stability分类
农业科技引用本文复制引用
蔡婧晖,黄立华,刘伯顺,黄广志,梁燕萍,蒋小曈..盐碱土与非盐碱土团聚体差异、改良影响及启示[J].水土保持学报,2025,39(5):1-12,12.基金项目
国家重点研发计划项目(2022YFD1500502-7) （2022YFD1500502-7）
国家自然科学基金面上项目(41977148) （41977148）
吉林省重大科技专项(20230302009NC) （20230302009NC）
