Evaluation of Spatial Distribution Pattern of Brown Bear (<i>Ursus arctos</i>) in Northern Primitive Forest Region of Inner Mongolia

内蒙古大兴安岭北部原始林区处于我国北部边境，其保存了原始森林资源，具有重要生态价值。近年来棕熊频繁造访管护站和边防站等人类聚居区，致使人与棕熊冲突加剧。为探明该地区棕熊的空间分布格局，为缓解人熊冲突提供科学依据。2021年9月~2023年12月采用相机陷阱法及样线法，结合多种环境变量，axent模型分析在内蒙古大兴安岭北部原始林区棕熊的空间分布格局。结果表明北部原始林区大部分区域均适宜棕熊分布，可利用资源丰富。本研究首次揭示了原始林区棕熊的空间分布特征，为棕熊种群保护恢复规划提供了原始森林生态系统参照。The northern primitive forest area of the Greater Hinggan Mountains in Inner Mongolia has important ecological value. In recent years, the conflict between human and bear has intensified due to environmental reasons. In order to investigate the spatial distribution pattern of brown bears in this region and alleviate the human-bear conflict, field data were collected by camera trap method and transline method. Maxent model was adopted to analyze the spatial distribution pattern of brown bears in the northern primitive forest area of the Greater Khingan Mountains in Inner Mongolia based on multiple environmental variables. The results show that brown bears are distributed in most of the northern primeval forest areas, and the available natural resources are rich, which is very suitable for brown bears to survive.