请按照nature发文推送翻译下面句子的语法结构和表达：土壤改良剂中添加PAM有效增加了改良剂对微团聚体的吸附作用从而有效增加大团聚体含量和孔隙度降低土壤容重有效吸附土壤水分含量减少水分蒸发和渗透损失。

The addition of PAM to soil amendments effectively enhances the adsorption of the amendments on micro-aggregates, thereby increasing the content of macro-aggregates and porosity, reducing soil bulk density, effectively adsorbing soil moisture content, and reducing water evaporation and infiltration losses. This process leads to improved soil quality.