In order to ascertain arbuscular mycorrhizal fungal(AMF) resources in the rhizosphere of Caragana in Oerhtossu Plateau, we surveyed the rhizosphere of 8 kinds of Caragana. We had isolated 34 species in six genera of AMF. Glomus showed the highest rela- tive abundance in every site, and the followed is Acaulospora. The composition of Caragana had important influences on species diversity of AMF, and Shannon index in C. intermedia was relatively the highest(2.85 ), while Simpson index in C. korshinskii was relatively the highest(0.93). The two indices in C. stenophylla were relatively the lowest (1.64 and 0.78 ). In Zhuozishan, Glomus etunicatmn was the dominant species; while Acaulospora undulate was the dominant species in Qianlishan;The rhizosphere spore density of C. roborovsk)i in north area Mu Us Sandyland is 8.8 cfu/50g,which is more lower than that of 14.2 cfu/50g in Mu Us Sandyland hinterland. The results showed that symbiotic relationship is excellent between Caragana and AMF, and AMF diversity in Caragana is rich in Oerhtossu Plateau.
NETL
NSTL
维普
万方数据
