农业科学研究2025，Vol.46Issue(4)：38-46,9.DOI:10.13907/j.cnki.nykxyj.2025.04.005
表面活性剂类土壤改良剂对盐碱地不同含盐量毛管上升水的抑制作用
Inhibitory Effects of Surfactant-base Soil Amendments on Capillary Rise Water in Saline-Alkaline Soils with Different Salinity Levels
摘要
Abstract
Surfactants can significantly modify the surface tension and interfacial properties of solutions,presenting potential appli-cations in regulating soil water movement.This study investigates the effects of various surfactant-based soil amendments on the inhibition of capillary rise water in saline-alkali soils.Indoor simulation experiments were conducted,wherein capillary water absorp-tion tests were performed using salt solutions of NaCL,CaCl2,MgCl2,and Na2SO4 at concentrations of 0,5,10,and 15 g∙L-1.Four surfactants were added:alkyl polyglycoside(APG),dodecyl dimethyl betaine(BS-12),lipid(LIP),and sodium lignosulfo-nate(SL),resulting in a total of 16 treatments.The stability of the surfactants in different concentrations and types of salt solutions and their inhibitory effects on capillary water rise were measured and analyzed.Additionally,soil column experiments were con-ducted to assess the inhibitory patterns of the surfactants on capillary rise in soils with different salt contents.The results show that:① As salt content increases,the transmittance of the surfactant solutions decreases to varying extents,with a more pronounced reduction observed in CaCl2 and MgCl2 solutions.Among the surfactants,APG exhibits relatively high transmittance(90.94%～97.54%),while SL shows lower transmittance(44.87%～57.94%).② In the capillary water rise experiments,all surfactants show inhibitory effects on capillary water rise,with BS-12 showing the most significant inhibition across various salt concentrations(0～15 g∙L-1),achieving an inhibition rate of 21.65%～33.54%.APG follows with an inhibition rate of 9.23%～19.40%,LIP exhibits a rate of 7.07%～18.35%,and SL has the lowest inhibition effect(2.20%～8.54%).③ In the soil column experiments,surfactant treatments significantly reduce the height of the soil wetting front and inhibit capillary water rise,with inhibition rates ranking as BS-12,APG,LIP,SL,with inhibition rates of 27.16%,21.96%,18.39%,and 14.01%,respectively.Overall,the BS-12 treat-ment demonstrates the most substantial inhibitory effect on capillary water rise,indicating its potential for improving saline-alkali soils.关键词
表面活性剂/盐碱地/毛管上升水/土柱试验/抑制率Key words
surfactant/saline-alkali soil/capillary rise water/soil column experiment/inhibition rate分类
农业科技引用本文复制引用
杨添吉,韩建均,郑天存,胡灿民,贺凯强,朱海..表面活性剂类土壤改良剂对盐碱地不同含盐量毛管上升水的抑制作用[J].农业科学研究,2025,46(4):38-46,9.基金项目
国家自然科学基金项目(42207414) （42207414）
湿地生态与农业利用教育部工程研究中心开放基金(KF202115) （KF202115）
