北京林业大学学报2026，Vol.48Issue(9)：60-68,9.DOI:10.12171/j.1000-1522.20260082
新疆哈密林区天山重齿小蠹发生规律与空间分布特征
Spatiotemporal distribution characteristics and occurrence patterns of Ips hauseri in the Hami forest region,Xinjiang of northwestern China
摘要
Abstract
[Objective]This study aimed to clarify the occurrence patterns and damage dynamics of Ips hauseri in the Hami forest region,Xinjiang of northwestern China and to provide a scientific basis for monitoring and control.[Method]From 2024 to 2025,field investigations were conducted in natural Picea schrenkiana forests in the Hami region.A combination of plot surveys,pheromone trapping and bark-peeling surveys was used to investigate the flight activity patterns and life history of I.hauseri adults,and to compare the distribution of adults on the trunks of spruce trees with different damage types.In addition,the health condition of spruce trees within the plots was recorded,and frequency distribution fitting and aggregation indices were applied to analyze the spatial distribution patterns of damaged spruce trees in plots with different infestation levels.[Result](1)Under natural conditions in the Hami forest region,I.hauseri completed one generation per year.Overwintered adults began to emerge from the soil and become active in late April,while newly emerged adults entered the soil for overwintering from mid-August to early September.(2)Adult flight activity occurred from May to September.The flight period of overwintered adults extended from May to June,peaking around June 10,whereas that of newly emerged adults lasted from July to September,with a peak around July 16.Marked differences were observed in daily flight rhythms among different periods:a single-peak pattern was recorded in late May,while a double-peak pattern occurred in late July.(3)Adults on damaged spruce trees were mainly distributed in the middle sections of trunk,with lower densities in the upper and lower sections.(4)Analysis based on frequency distribution fitting and aggregation indices showed that,with increasing damage severity,the spatial distribution of damaged spruce trees shifted from a highly aggregated pattern to a weakly aggregated pattern,and eventually approached a random distribution.[Conclusion]This paper clarifies the flight activity patterns and life history of adult I.hauseri in the Hami forest region of Xinjiang,and reveals the distribution patterns of adults on spruce trunks with different damage types,as well as the spatial pattern changes of damaged spruce trees in plots with different infestation levels.关键词
天山重齿小蠹/雪岭云杉/生活史/扬飞规律/空间分布格局Key words
Ips hauseri/Picea schrenkiana/life history/flight activity rhythm/spatial distribution pattern分类
农业科技引用本文复制引用
石冰杰,葛舒悦,郭添祎,吴照晨,唐光辉..新疆哈密林区天山重齿小蠹发生规律与空间分布特征[J].北京林业大学学报,2026,48(9):60-68,9.基金项目
天东林管局哈密分局云杉天山重齿小蠹关键防控技术研究(NO.2025006). （NO.2025006）
