摘要
本文报道滇西北宁蒗县的三尖杉天然森林群落的特征和树种。这种森林分布于海拔2300—2500米的喀斯特河谷。具有两个乔木层,其中乔木亚层是优势层,由三尖杉组成。林内共有58科84属95种维管束植物。主要是喜钙的和湿润生的生态类型。森林生态的和植物群落的特征反映出森林从亚热带向暖温带的过渡性。同时,该林具有较好的自然更新能力。
Cephalotaxus fortunei is archaic and endemic tree species in China. At the same time it is important resource of medicinal plant to prevent carcimoma. It come into existence scattered growing in natural coniferous and broad-leaf mixed forests. It is meagre in the quantity resource. This paper reports the community characters and the trees of Ce phalotaxus fortunei natural forest in Ninglang county of NW. Yunnan province. This forest is dispersed with the valley of Karstland and over there, occupying the altitude 2300-2500 m above sea level.
There arc two tree layers in Cephalotaxus foriunei community, the high tree sub-layer therein is a dominant tree layer. Cephalotaxus fortunei is all in all to predomination of the- forestry plants. There are 95 species of 84 genera amang 58 families in the forest. Thus plants are mainly calciphytcs and hygrophytes or mesophytcs. The characteristics of the forest ecology and the plant community showed the transitional character of forests from sub-tropical to warm-tcmpcratc. In the meantime forest has better energy of natural regeneration.
出处
《云南植物研究》
CSCD
1989年第4期423-432,共10页
Acta Botanica Yunnanica
关键词
三尖杉
森林生态
小凉山
Cephalotaxus fortunei
Endcmic
Transition
Protection
