灌溉水质对草坪土壤化学性质的影响

Effect of irrigation water quality on the chemical properties of lawn soil

对用不同矿化度井水灌溉后的草坪土壤中全盐及离子组成、不同灌溉井水的矿化度和有关离子的含量进行了测定。结果表明,灌溉水质对草坪土壤的化学性质有很大影响。栽草前,土壤的全盐量为0.783g/kg。1年后,用矿化度为1.122g/kg的1号井水灌溉的草坪,土壤全盐量上升到2.450和2.180g/kg;用矿化度为1.362g/kg的2号井水灌溉的草坪,土壤全盐量上升到3.110和2.942g/kg;用此类井水灌溉,还会使土壤的pH值不断升高。

Determination was made of the total-salt, ionic composition and pH value in the soil before and after irrigation with different wells water. The results indicate that irrigation water quality has great effect on the chemical properties of lawn soil. Before the lawn was planted, the total salt content of the soil was (0.783) (g/kg). Using No.1 well water, which had a mineralization degree of 1.122 g/kg, to irrigate the lawn, the total salt content of the soil reached 2.450 and (2.180) g/kg after a year. Using No.2 well water with a mineralization degree of 1.362 g/kg, the total salt content of the soil reached 3.110 and 2.942 g/kg. At the same time, using water from these wells, the soil pH also continually increased.