大青沟自然保护区大型真菌对沙地环境的适应与气候条件的相关性

大青沟自然保护区与其周边地区相比具有极其丰富的种类多样性，生境异质性较丰富，具木生、土生、粪生、虫生和菌根菌等5种类型，以木生和土生为主；真菌对沙地环境的适应性强，表现在子实体小型化，浅色种类居多，草原沙漠特有种类占一定比例；5至10月真菌大量发生，其中以8、9月份的种类最多，与其上一个月份的气温和降水量有密切的关系，并出现‘滞后现象’；自然干扰和人为干扰共同影响着大青沟的生态环境，前者以风蚀，干旱、沙为为主，后者以旅游，砍采、放牧、耕种为主，适度干扰可增加物种多样性；应注意真菌的就地保育。

Adaptation to Desert Environment of Macrofungi and Relativity with Climate Conditions in Daqinggou Natural Reserve

The species diversity of Daqingou nature reserve is extremely richer than its Surrounding areas. Habitat heterogeneity is richer, there a re 5 habitat types: Lignicolous, Geophilous, Coprophilous, Entomophilous and Ect omycorrhizal, Lignicolous and Geophilous play a major role in them. The fungi ha ve a better adaptation to the desert environment. The sporocarps trend towards m iniaturization and their main colors are light. There are a lots of the endemic of grassland or desert; from May to October occur many fungi, on August and Sept ember the species are the most, this has a close relation to temperature and pre cipitation of last month, and appear “lap phenomenon”. The natural disturbance and human disturbance all affect the ecological environment of Daqinggou; the f ormer are wind erosion, drought and desert; the later are tourism, over collecti ng, raising live-stock, cultivation, collection of fire wood. The appropriate di sturbance can increase the biodiversity of fungi， it is noted that fungi should be in situ conservation.