纳米型植物抗逆剂油松蘸浆造林效果分析
Benefit Analysis on Root-dipping Afforestation of Pinus tabulaeformis with NPA

采用药剂蘸浆造林的方法比较了纳米型植物抗逆剂（NPA）和多效抗旱驱鼠剂（RPA）的油松造林效果。结果表明，定植当年干旱、鼢鼠和草兔致死率占总致死的比例为85.8%～87.9%、10.4%～11.9%和0.7%～1.4%；定植3 a三者分别占65.5%～77.7%、12.8%～22.5%和7.9%～10.7%。NPA蘸浆造林定植当年对干旱、鼢鼠和草兔的预防效果为65.2%～73.0%、95.3%～100.0%和100.0%，RPA为52.9%～55.9%、91.1%～100.0%和100.0%。定植3 a时，NPA的预防效果为76.0%～78.2%、94.0%～98.8%和92.8%～100.0%，RPA为65.7%～67.5%、90.6%～93.9%和91.0%～93.6%。说明使用150倍NPA和RPA蘸浆造林能显著提高油松的抗旱能力，降低鼢鼠和草兔的危害，且NPA的整体效果优于RPA。
Drought and rodent (hare) damage were the key issues affecting the construction of forestry ecological project in Northern China. Two reagents, NPA and RPA were used in the afforestation of Pinus tabulaeformis by dipping the seedling roots in the mud slurry containing the reagents. The results showed that drought and the rodent damage were lethal key factors for the seedlings planted. The proportions of the rate of lethality of the seedlings caused by drought, zokor and rabbit (Lepus capensis) were 85.8%-87.9%, 10.4%-11.9% and 0.7%-1.4% of the total in the first year of field planting. Three years after field planting, the proportions were 65.5%-77.7%, 12.8%-22.5% and 7.9%-10.7%. The rate of preventive effects of NPA to drought, zokor, and rabbit in the first year of planting were 65.2%-73.0%, 95.3%-100.0% and 100.0%, and 52.9%-55.9%, 91.1%-100% and 100% for RPA. Three years after field planting, preventive effects for NPA were 76.0%-78.2%, 94.0%-98.8% and 92.8%-100.0%, 65.7%-67.5%, 90.6%-93.9% and 91.0%-93.6% for RPA. The results indicated that by using 150 times of NPA and RPA in the root-dipping slurries for P. tabulaeformis afforestation could significantly improve seedlings’ drought resistance, and reduce the damages caused by zokor and rabbit. The overal preventive effect of NPA was better than RPA