Abstract: Habitat selection by the giant panda was studied in 1992 in Mabian Dafengding Reserve.Habitat selection was quantified by estimating the droppings and feeding sites in 20× 2 m transect strip．Habitat parameters were measured along transect strip (slope， aspect, forest canopy cover)and in bamboo plots assimilated with the transects(bamboo cuIm density，basal diameter，proportion of young stoms)．V anderloeg and Seavia selectivity index was used to asses panda 's selection for different habitat parameters. The resuits were as follows．
1．Pandas preferred to select the evergreen and deciduous broadleafed forest．
2．Pandas showed strong habitat preference for gentle slope(< 30° )facing east and with dense forest canopy (> 50 ﹪)．
3·Pandas preferred to select following口． macropl*yllo stands with moderato bamboo density (10~ 30 culms／m )，thick basal diameter(> l0 mm)and high proportion of young stems (> 5 ﹪)．

Key words: Liangshan Mountains, Giant panda (Ailuropoda malanileuca ), Habitat selection, Microhabitat

摘要： 作者通过设置167个20×2m的样方，采用Vanderloeg和Scavia选择指教对马边大风顶自然保护区大熊猫生境选择进行了研究。结果表明，大熊猫喜欢选择在常绿落叶饲叶林和针阔混交林， 厦东、南坡向，坡度平缓(小于10°)，上层乔木郁闭度较大(大于50%)的大叶筇竹林中觅食．并且对于基径较粗(大于10 mm)、幼竹比例较高(大于5%)、密度适中(1O～30株／m²)的大叶筇竹林更加青睐。

关键词: 凉山山系, 大熊猫, 生境选择, 微生境