云南省元江县干热河谷土壤小型真菌生态区系研究

The Study on the Flora of Small Fungi in the Soil of YuanJiang County, Yunnan

本文对云南省元江县干热河谷地区土壤小型真菌区系生态分布、组成和数量进行了研究．结果表明：在该地区共出现小型真菌４目、８科、２０个属，其中丛梗孢目（Ｍｏｎｉｌｉａｌｅｓ）占总数的８８．７％，为绝对优势类群．小型真菌在土壤各剖层的垂直分布，枯枝落叶层数量最高，其次为淋溶层，但各剖层中出现的真菌属数差别不大．

Was on the ecological distribution, composition and the amount of small fungi in the soil of hot dry river valley of Yuanjiang county, Yunnan. The results show that there are four orders, eight families and twenty genera of small fungi in this place,among them, the fungi of oder Moniliales are 88. 7% of all fungi found, and are predominant group. The quantity of small fungi located in the various layers in the order of mollic epipedon, luvisols horizon, lithic contact and liiuvial horizon. But the number of genera is almost the same in the various layers.