论文部分内容阅读
水溶性阴离子聚丙烯酰胺 (PAMs) ,因其影响土壤的分散、结絮和团聚作用 ,稳定土壤的结构和提高土壤的渗流 ,使得土壤地表水的径流、土壤侵蚀和板结程度降低到最小 ,已被应用于不同的农业目标来有效地控制土壤侵蚀、保护地下水水质和显著地降低动物废弃水中的细菌和养分含量。对影响PAM在土壤和水分管理应用的因素 ,从土壤和水特性包括土壤质地、溶解盐的浓度、有机质含量对PAM吸附的影响 ,PAM分子量及其电荷在土壤渗透作用中的作用等两方面进行了评述 ,介绍了PAM在土壤和水中降解与环境安全问题和今后研究的某些方向。参 36。
Water-soluble anionic polyacrylamides (PAMs), because of their impact on soil dispersion, flocculation and agglomeration, stabilize the soil structure and improve soil seepage, making the surface runoff of soil water, soil erosion and consolidation to a minimum, Is applied to different agricultural objectives to effectively control soil erosion, protect groundwater quality and significantly reduce bacteria and nutrient content in animal waste water. Factors influencing the application of PAM in soil and water management range from soil and water characteristics including soil texture, dissolved salt concentration, the effect of organic matter content on PAM adsorption, the effect of PAM molecular weight and its charge on soil infiltration Reviews the progress of PAM in soil and water degradation and environmental safety issues and some future research directions. Participation 36.