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通过对大兴安岭新林、富裕、齐齐哈尔3处樟子松红斑病不同病害等级样地的生长量系统调查研究,摸清了不同病情造成的生长量损失及病情与高、径、材积生长量关系,在考虑各地不同的立木材积生长量、木材价格、防治费用、防治效果的基础上,根据防治成本与经济允许水平,建立了应用范围广泛的防治指标动态模型:X=ln(87.7-CD·J·E×100)-4.93998-0.02101,同时给出了不同药剂、不同防治效果、不同密度樟子松林分的防治指标。
Based on the systematic investigation on the growth of different disease grade plots of Pinus sylvestris var. Mongolica in Xinlin, Fuyu and Qiqihar in the Greater Xing’an Mountains, the relationship between the growth loss and the disease, the growth of volume, Based on the prevention and control costs and economic allowable levels, a dynamic model of prevention and control index with a wide range of applications was established based on the consideration of the growth of timber volume, timber price, prevention and control costs and the prevention and control of timber in different places: X = ln (87.7-CD · J · E × 100) -4.93998-0.02101. At the same time, the control indexes of Pinus sylvestris var. Mongolica different stands, different control effects and different densities were given.