为揭示盐碱地改良过程中土壤细菌群落结构及其多样性变化。以通辽典型的盐碱地玉米田为材料,在玉米吐丝期,利用高通量测序技术对盐碱地土壤细菌进行测序,结合相关生物信息学分析,研究未开垦盐碱地(ZH1)、非盐碱地连作玉米田(ZH2)和玉米秸秆还田盐碱地种植玉米田 (ZH3)3个处理下,耕层土壤细菌群落丰富度、多样性和群落结构的变化。结果表明,三个处理土壤细菌群落结构和丰度差异大,已知菌属中鞘氨醇单胞菌属(Sphingomonas)和pontibacter是ZH1与ZH3的优势菌属；ZH2的优势菌属为链霉菌属(Streptomyces)、鞘氨醇单胞菌属和类诺卡氏属(Nocardioides)。玉米秸秆还田对盐碱地土壤细菌多样性的影响较大,细菌菌群Alpha及样品群落组成丰度分析可知,两年玉米秸秆还田盐碱地土壤细菌多样性和物种丰度与未开垦盐碱地比较均有所上升；并出现了能降解有机物料和农药的功能菌属。
英文摘要:
In order to reveal the changes of soil bacterial community structure and diversity in saline soil. Using high-throughput sequencing technology, combined with relevant biological information analysis, study on soil bacterial community richness, diversity and community structure of virgin saline (ZH1), non saline continuous cropping of maize field (ZH2) and maize straw returning saline planting corn field (ZH3) 3 treatments. TheSresultsSshowedSthatS
;
