聚丙烯酰胺的理化特征及在黄土区减流减蚀应用前景

在阐述聚丙烯酰胺(polyacrylamide,简称PAM)的合成工艺、理化特征及在土壤改良中的应用基础上,详细描述了PAM和土壤粘粒及团聚体间的相互作用,并深入探讨了PAM增加团聚体稳定性、减少土壤结皮形成、增加降雨入渗、减少径流和土壤侵蚀的机理。从机理上概括了PAM的特性、土壤特征及施放方法对其改良效果的影响。

Physical and chemical properties of polyacrylamide and its application to soil amelioration

This work briefly reviewed synthesis processes,production routes,and chemical and physical characteristics of polyacrylamide(PAM),as well as its application to soil amelioration.The interactions between PAM and soil materials,especially with soil clay fraction,were presented in detail.The mechanisms that PAM can increase soil aggregate stability,control surface sealing formation,improve water infiltration,and reduce runoff and soil erosion were examined in depth.The effects of PAM and soil properties as well as PAM application protocols on the effectiveness of soil amelioration were elucidated at the fundamental process level.