新疆阿尔泰山天然林区云杉八齿小蠹防控区划

Control and Division of Ips typographus Linnaeus in Natural Forest of Aertai Mountain in Xinjiang Region

新疆阿尔泰山天然林区云杉八齿小蠹(Ips typographus Linnaeus)主要分布于阿勒泰、哈巴河、布尔津、福海、富蕴、青河6个林管分局,依据海拔、地形、郁闭度等不同因子,选定调查样地、样株进行危害情况调查、监测;根据危害情况区划出重点防控区面积6 441.46 hm2,148个林班,占总区划面积的1.35%;一般防控区面积54 139.22 hm2,200余个林班,占总区划面积的11.37%;生态自控区面积为415 559 hm2,占总区划面积的87.28%。

Ips typographus Linnaeus in natural forest of Aertai Mountain was mainly located in the six forest management branches, including Aletai,Habahe, Buerjin,Fuhai, Fuyun and Qinghe branch. Based on factors of altitude, topography, canopy density and others, the place and strains were sampled to conduct survey and monitoring. Based on hazard zoning area of 6 441.46 hm2 of a focus on prevention and control, 148 forest compartments were divided, accounting for 1.35% of the total area of zoning. In General prevention area 54 139.22 hm2, there were more than 200 forest compartments, accounting for 11.37% of the total area of zoning. Eco-controlled area of 41.5559 × 104 hm2 was accounted for 87.28% of the total area of zoning.