论文部分内容阅读
高吸水性树脂掺入土壤中,可使土壤在低吸力范围内增加含水量。此点以长春 IAC-13效果最好。一般施用量为土壤的0.5%时,可增加含水量1.5倍左右。高吸水性树脂掺入土壤后,土面蒸发速率增高。由于增加了土壤含水量,可延长高蒸发速率蒸发的时间。混有高吸水性树脂的土壤阻滞水的入渗,饱和导水率降低1～2个数量级,阻滞时间并不长。高吸水性树脂对粗质地土壤效果最为明显。大田施用高吸水性树脂并不经济,对不计成本的固沙植草造林,盆栽名贵花卉等事业可能有一定意义。
Incorporation of superabsorbent resins into the soil can increase the soil moisture content in the low suction range. This point to Changchun IAC-13 the best. The general application of 0.5% of the soil, it can increase the water content of about 1.5 times. After the superabsorbent resin is incorporated into the soil, the evaporation rate of the soil surface is increased. Due to the increase of soil moisture, the evaporation time of high evaporation rate can be prolonged. Soil mixed with superabsorbent resists the infiltration of water and the saturated hydraulic conductivity is reduced by 1 to 2 orders of magnitude and the block time is not long. Superabsorbent resin has the most obvious effect on the coarse soil. Field application of superabsorbent resin is uneconomical, and may be of some significance to the afforestation of afforestation, potted rare flowers and the like regardless of cost.