四川白河自然保护区大熊猫对生境的利用

HABITAT EXPLOITATION BY PANDA IN THE BAIHE NATURE RESERVE

利用路线法在野外调查了四川九寨沟县白河自然保护区 10 9个样点的大熊猫粪便等痕迹及其所处生境的特征 ,共发现有 2 9个大熊猫活动样点 ,其中 ,大熊猫粪便样点 2 7个、食迹样点 2个 .把各样点的各种生境特征作为因素 ,把每一因素的不同情况设置为水平 ,进行独立性检验 .检验的结果表明白河的大熊猫 :1)主要在halt2 6 0 0～ 312 0m取食 ;2 )偏好在有水源的生境活动 ;3)对坡向有明显的选择性 ;4 )对华西箭竹有明显的偏好 ,且在生长良好、盖度较高的生境活动频繁 ;5 )明显回避有挖药活动的生境 ,偏好在没有人类干扰的生境活动 .表 5参

The droppings of giant pandas and their habitats were invertifated by the route method in the Baihe Nature Reserve. Among 109 sampling spots, 27 dropping spots and 2 gnawing spots were recorded. Totally, at 29 sampling spots panda traces were recorded. The results from chi-square test of independence show that the giant pandas in the Baihe Nature Reserve forage mostly at the places between 2 600～3 120 m; prefer the habitats with water sources; have obvious selectivity of aspect; prefer Fargesia nitida and particularly like the habitats where bamboo grows better and denser; avoid the habitats where herb-collection exists and prefer the habitats with no human disturbance. Tab 5, Ref 13