基于MAXENT模型的唐家河自然保护区大熊猫生境适宜性评价

Giant panda habitat suitability assessment in Tangjiahe Nature Reserve based on MAXENT model

基于MAXENT模型,依据保护区已知的大熊猫分布点信息和保护区影响大熊猫生境的12个环境要素,对唐家河国家级自然保护区大熊猫生境进行了适宜性评价和预测.结果表明大熊猫偏好在远离人类活动干扰、海拔2 000~2 500 m、靠近河流的针叶林和针阔混交林中活动;保护区最适宜、较适宜和不适应生境面积分别为56、148、196 km^2,分别占保护区总面积的14%、37%、50%.为更好地保护大熊猫,必须加强大熊猫适宜生境的保护;控制人为干扰,以提高大熊猫生境的连通性和适宜性.

According to species trace points and 12 environmental factors, the MAXENT model was ap- plied to assess the habitat suitability for the giant panda in Tangjiahe Nature Reserve and the results showed that the giant panda prefer the needle forest, and also needle and broad leaf mixed forest with a high elevation （2 000-2 800 m） near a river and far away from human activity. The unsuitable, suitable and the most suitable habitat areas were 56, 148 and 196 km^2, accounting for 14%, 37% and 50% of the total area of the reserve, respectively. For better protection of the giant panda, the suitable habitat protec- tion must be strengthed, the connectivity improved, suitable habitat expanded and human disturbance con- trolled.