CAJ | 학술논문

通过采集野外数据，采用聚集度指标法及回归分析法对短毛切梢小蠹蛀梢期成虫的空间分布格局进行测定，运用SPSS分析软件对普洱市宁洱县短毛切梢小蠹的发生规律及空间分布型进行分析。结果表明，6个环境因子中，坡位、树木长势及树龄未被引入方程，说明其对虫口密度影响不显著，坡向、受害梢直径及林分郁闭度为影响短毛切梢小蠹虫口密度的关键环境因子；短毛切梢小蠹蛀梢期成虫在宁洱县思茅松枝梢空间分布格局为聚集分布，聚集现象是由其本身的特性与环境的异质性两因素共同作用所引起。
통과채집야외수거，채용취집도지표법급회귀분석법대단모절소소두주소기성충적공간분포격국진행측정，운용SPSS분석연건대보이시저이현단모절소소두적발생규률급공간분포형진행분석。결과표명，6개배경인자중，파위、수목장세급수령미피인입방정，설명기대충구밀도영향불현저，파향、수해소직경급림분욱폐도위영향단모절소소두충구밀도적관건배경인자；단모절소소두주소기성충재저이현사모송지소공간분포격국위취집분포，취집현상시유기본신적특성여배경적이질성량인소공동작용소인기。
Based on the field data collection,aggregation indices and regressive analysis method,the spatial distribution pattern of Tomicus brevipilosus adult in treetops of Ninger County Puer city was tested,and then the occurrence and spatial distribution pattern were analyzed further by SPSS.The results showed that,among 6 envi-ronmental factors,slope position,trees growth and age had not been introduced to equation.It suggested that the key environmental factors affecting the Tomicus brevipilosus population density were slope direction,‘victim’tree-tops′diameter and canopy,and slope position,while tree growth and age had not significant effect on density.The results of analysis indicated that,in Pinus kesiya var.langbianensis forest of Ninger County,the spatial distribution patterns of Tomicus brevipilosus adult in treetops was aggregated distribution,and the causes of the phenomenon were believed to be both characteristic itself and environment heterogeneity.