Study on Microbial Flora and Diversity in Saline-alkali Soil Improved for Different Years in Yinchuan Plain
KE Ying
LI Feng-xia
Abstract：Microflora and microbial diversity in saline-alkali soil improved for ten years (A ) ,five years(B) ,two years(C) ,zero year(CK) were studied using the plate dilution method and Biolog microbial identification system in Yinchuan plain .The results showed that the improvement of saline-alkali soil effectively increased the microbial quantity , the number order of bacteria and total microorganism was A>B>C>D ;the number order of actinomycete was A>C>B >D ;the number order of fungi was B>C>A>D .The soil microbial structure was changed significantly , the soil environment was improved ,and the microbial community structure was changed from single bacteria group structrue to multiple microbial groups structure .The improvement of saline-alkali soil increased total carbon source utilization ability of microbial community ,the order was C>A>B>D .The polymer and carbohydrate utilization ability of microbial community in saline-alkali soil improved for ten years were highest ,the carboxylic acid ,amine ,amino acids ,phenols carbon source utilization ability of microbial community in saline-alkali soil improved for two years were highest .
Keywords：Yinchuan plainsaline-alkali soilmicrofloramicrobial diversity
Publication Date：2014-06-02
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 75-79 )