膨润土改良土壤技术的研究进展

Research Progress on Bentonite as Soils Modifier

膨润土具有较强的吸水性、膨胀性、吸附性、粘着性等一系列优良的理化性质,对土壤有很好的改良和修复作用。概述了膨润土作为土壤改良剂对土壤理化性质、肥料利用效率及污染土壤修复的研究进展,总结了膨润土作为土壤改良剂在应用研究中存在的问题,并对其应用潜力进行展望。

Bentonite has the advantages of strong hygroscopicity, expansibility, adsorptivity and adhesivity. It can ameliorate and reclaim soils. The research progress was reviewed on bentonite as soil modifier to improve the physicalchemical properties of soils, to improve the fertilizer utilizing efficiency and to reclaim the polluted soils. The problems existing in the research and applications of bentonite as soils modifier was summarized and its prospects were discussed.