高山栎

硬叶常绿高山栎类植物是指壳斗科栎亚属中的高山栎组（QuercussubgenusQuercussect.Brachylepides）的8种植物和1个存疑种植物，以及巴东栎组（QuercussubgenusQuercussect.Engleriana）的7种植物。

The alpine sclerophyllous oak plants refer to a kind of plants in Quercus subgenus Quercus sect . Brachylepides ( 8 species and 1 impeach species ) and Quercus subgenus Quercus sect . Engleriana ( 7 species ) .

中国硬叶常绿高山栎类植物的起源与演化

The Origin and Evolvement of Alpine Sclerophyllous Oak Plants in China

滇西北的川滇高山栎具有很强的萌生能力。

The Quercus forest in the Northwest of Yunnan Province showed a strong sprouting ability .

因此，含高山栎岩系的地质时代不会早于上新世中晚期。

The geological age of the present sandstone series is not earlier than the middle-late Pliocene .

高山栎组分布区的形成和喜马拉雅的隆起、横断山的形成有密切关系。

Relationships between the distributions of the section and uplift of Himalayas are discussed in the present paper .

川滇高山栎广泛分布于横断山地区，属于亚高山硬叶栎林，是中国植被非常特殊的类型。

As a very special vegetation type in china , Quercus aquifolioides , a type of sub-alpine sclerophyllous oak forest , distributes widely in Hengduanshan mountain in Wolong Natural reserve .

环境的异质性越高，高山栎类的变异越大，种群变异和物种进化与气候、生境、地形地貌和土壤等环境的异质性密切相关。

It suggested the more heterogeneous the environments the more variable the sclerophyllous oaks . Population variability and species evolution associated with the environmental heterogeneity such as climate , local dominant current , habitat , topography and soil .

高山栎林型随着海拔高度的增加，土壤上层（0~20cm）菌根侵染率增高、下层（20~40cm）菌根侵染强度指数增大，土壤上下层有效磷浓度都明显减少；

In the alpine oak ( Quercus aquifolioides ) forests , infection rate of mycorrhizae in upper soil layer ( 020cm ) and infection intensity index of mycorrhizae in lower layer ( 2040cm ) increased but the concentration of available P decreased in both layers with the increase of attitude .