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为揭示盐碱地秸秆还田改良中土壤真菌群落结构及其多样性变化,以未开垦盐碱地(ZH1)、非盐碱连作玉米田(ZH2)和秸秆还田盐碱玉米田(ZH3)为材料,在玉米吐丝期,利用高通量测序技术与相关生物信息学分析结合,研究表层土壤真菌群落丰富度、多样性和群落结构的变化。结果表明,3个处理土壤真菌群落结构和丰度差异大,已知菌属中ZH1的优势属为马拉色菌,ZH2优势属为暗球腔菌属,ZH3优势属为链格孢属。玉米秸秆还田对盐碱地土壤真菌多样性的影响较大,两年玉米秸秆还田盐碱土壤真菌多样性和物种丰度与未开垦盐碱地比较均有所下降。
In order to reveal the change of soil fungal community structure and its diversity during the improvement of saline-alkali soil straw returning, we studied the changes of soil fungal community structure and its diversity in saline- Corn silking period, the use of high-throughput sequencing technology and related bioinformatics analysis of surface soil fungal community richness, diversity and community structure changes. The results showed that there were significant differences in the structure and abundance of fungi among the three treatments. The dominant genus of ZH1 was Malassezia, the dominant genus of ZH2 was Actinococcus and the dominant genus of ZH3 was Alternaria. Corn straw returning had a great influence on the diversity of soil fungi in saline-alkali soil. The fungal diversity and species abundance of saline-alkali soil in two years of corn stalks return decreased compared with those in saline-alkali soil without reclamation.