Arbuscular mycorrhizal fungi diversity and its relationship with soil environmental factors in oasis alfalfa planting of Shihezi

The aim of this study was to measure soil nutrient content,the diversity of alfalfa rhizosphere AM fungi and its relationship with soil factors in each sample site.The results showed that there were 3genera and 21 species of AM fungi in the vegetation rhizosphere soil of total sample areas,including 6species of Acaulospora,14 species of Glomus,4species of Scutellospora.Glomus appeared as the dominant species which was present at all research sites.Spore density significantly and negatively correlated to the soil available phosphorus and alkali-hydrolysis nitrogen(P0.01),and did not correlate with soil available potassium,pH and organic matter.