德夯风景区蕨类植物的生态类型

本文以生态因子为依据，采用比较生态学的方法，对德夯风景区蕨类植物的生态类型进行研究，结果表明该区的蕨类植物可以划分为阳生植物、阴生植物、耐阴植物、旱生植物、中生植物、湿生植物、水生植物．附生植物、土生植物、石生植物、喜钙植物、嫌钙生植物共12种生态类型，其特点是阴生植物和中生植物居多，附生植物比较丰富，旱生植物与石生植物种类少。最后作者分析了形成此特征的原因，并就如何进行生态类型划分的问题进行了讨论。

THE ECOLOGICAL TYPES OF FERNS IN DEHANG REGION

This paper deals with the ecological types of ferns of Dehang region. It shows, the ferns in Dehang region can be divided into 12 ecological types according to the effects of ecological factors, heliophytes, sciophytes, tolerophytes, yeyophytes mesophytes hygmphytes, hydrophytes epiphytes terraphytes, lithophytes, acidophytes and caliciphytes, It's features in this region are: (1) Rich in the species of sciophytes and mesophytes ; (2) High proportion of the species of epiphytes; (3) Few proportion of the species of xerophytes and lithophytes, Finally, a preliminary analysis of the reason for the features and a preliminary discuss about how to divide ecological type have been reported.