甘肃麦积山风景名胜区土壤肉鞭虫群落特征

Community characteristics of soil sarcodinids and flagellates in the Scenic Spots and Historic Sites of Maijishan,Gansu

用"非淹没培养皿法"和活体观察法对甘肃麦积山风景名胜区土壤肉鞭虫群落特征进行了研究。共鉴定到肉鞭虫90种,其中包括5个未定名种和29个国内新纪录种,隶属于2亚门5纲14目27科46属。结果表明,风景名胜区土壤肉鞭虫群落物种丰富,特有和稀有物种繁多,群落结构复杂,物种组成具有独特性;物种分布呈现高度的空间异质性;土壤和水生肉鞭虫群落物种组成极不相似,土壤和水生肉鞭虫群落是不同的2个独立群落。

Community characteristics of soil sarcodinids and flagellates in the Scenic Spots and Historic Sites of Maijishan, Gansu were studied by using ＂ non-flooded petri dish method＂ and observation in vivo. Ninety species were totally identified, including 5 unnamed species and 29 new records in China, which belongs to 2 subphylums, 5 classes, 14 orders, 27 families and 46 genera. Results demonstrated the following features： there are abundant species in these areas, including a large number of endemic and rare forms; the community structures are complex and the species composition is unique, and the species distribution was highly heterogenetic. Compared with that of aquatic community, the species composition of soil community of sarcodinids and flagellates in the Scenic Spots and Historic Sites is quite dissimilar, which indicates that the soil and aquatic communities belong to two independent ones.