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准确估算药剂蘸浆造林经济效益是制定林木鼠(兔)害治理和蘸浆造林方案的前提。为了估算纳米型植物抗逆剂(NPA)蘸浆造林的经济效益,以多效抗旱驱鼠剂(RPA)为参照进行了异地蘸浆造林试验。在造林成本估算和林木产值分析的基础上,采用效益评价方法,结合林木害鼠(兔)治理特性,进行了药剂蘸浆造林经济效益研究。结果表明,药剂效益包括林木产值增量和经济损失减少量,可用总效益、净效益、纯效益和净效益现值等指标估算;同时,可用贡献率指标分析药剂效益构成。总效益、净效益和纯效益NPA处理>RPA处理,油松>侧柏,地区间差异明显,具有显著的时间滞后性和增长性。药剂干旱预防作用对总效益贡献最大,鼢鼠预防作用是油松总效益贡献的主要因素,草兔预防作用对侧柏总效益贡献较大。
Accurately estimating the economic benefits of pesticide dip in afforestation is a prerequisite for establishing forest tree (rabbit) pest control and dip dip afforestation programs. In order to estimate the economic benefit of nano-plant NPA in dip-afforestation, the multi-effect drought-resistant rat repellent (RPA) was used as a reference to conduct the off-site dip dip afforestation experiment. Based on the estimation of afforestation cost and the analysis of forest output value, this paper studied the economic benefits of pesticide dip in afforestation by using the method of benefit evaluation and combining with the governance characteristics of tree pests (rabbit). The results showed that the benefit of medicament includes the increment of forest output and the decrease of economic loss, which can be estimated by the indexes of total benefit, net benefit, pure benefit and present value of net benefit. At the same time, the available contribution rate index is used to analyze the benefit of medicament. Total benefit, net benefit and net benefit NPA treatment> RPA treatment, Pinus tabulaeformis> Platycladus orientalis, regional differences were significant, with significant time lag and growth. The preventive effect of medicinal plants on drought contributed most to the total benefit. The prevention of zokor was the main factor contributing to the overall benefit of P. tabulaeformis, and the preventive effect of rabbits contributed more to the overall benefit of P. orientalis.