植物抗逆剂蘸浆造林经济效益评价(Ⅱ)——林木产值分析

Estimation on the Economic Benefit of Afforestation by Dippingthe Seedling Roots into Slurry with Plant Stress-resistance Agents(Ⅱ) —— Estimation of the Benefits from Timber

准确估测新造林林木产值是评价药剂蘸浆造林经济效益的基础。为此通过对异地试验跟踪调查,采用林木估价法对药剂蘸浆造林林木产值进行了研究。结果表明,药剂处理林木保存率比对照显著提高,差异极显著。苗高价格与苗高符合指数函数模型。定植当年对照与药剂处理区林木净产值和纯收益均为负值,产值小于造林成本。与对照相比,药剂处理区经济效益明显提高,林木产值、净产值和纯收益NPA>RPA>CK,差异极显著。

Dipping the seedling roots into slurry which contains the stress resistant chemical agents is an effective way in afforestation.In this paper,we estimated the economic benefits of the timber by using this method.The seedling preserving rate increased significantly compared with the control.The difference was most significantly different.The net output and pure income of the timber in the first year of afforestation were negative,the output value was less than the cost both in chemical treated area and control area.However,compared with the control,the economic benefits from the chemical treated area significantly increased compared with the control.Forestry output value,net output and pure income were in the order of NPARPAcontrol,the difference was most significant.