沃特多功能保水剂保水性能研究

Study on water-conserving ability of multifunctional water absorbant

通过室内实验对沃特多功能保水剂在黄土高原主要类型土壤持水性能及保水作用的研究,结果表明:该保水剂在土壤持水方面,对黑垆土效果最明显,持水性均高于对照。而对土和黄绵土来讲,效果不太明显。但在土壤导水方面,黄绵土的改善效果最明显,饱和导水率随保水剂用量的增多而增大;对黑垆土导水率的提高也有一定的作用;对于土来讲饱和导水率在施入保水剂后反而降低。在土壤抗蒸发方面,保水剂抗蒸发作用明显,随用量的增多而各土壤的蒸发量减少。

The experiment was conducted to study the water-conserving ability of multifunctional water absorbant in different soils on Loess Plateau. The results indicated that, in the aspect of soil water holding capability, the absorbant was most effective to Heilu soil, but not clearly effective to Lou soil and loessial soil. In the aspect of soil water conducting capability, the absorbant was most effective to loessial soil, and the saturated hydraulic conductivity increased with the increase of dosage of the absorbant; it was also somewhat effective to loessial soil; but when it was applied to Lou soil, the saturated hydraulic conductivity was reduced. In the aspect of soil evaporation resistance, the absorbant was clearly effective to all kinds of soil, and the evaporation rate tended to reduce with the increase of its dosage.