摘要
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 changes of soil fungal community structure and diversity in saline alkali soil, soil samples were taken from the surface of uncultivated saline alkali land（ZH1）,non-saline continuous cropping maize field （ZH2）and straw returning to saline field （ZH3） and the changes of community richness, diversity and structure were analyzed by combing the high-throughput sequencing with bioinformaticstechnology during corn silking stage. The results showed that the differences in soil fungal different treatments. The dominant genus in ZH1, community structure and abundance were significant between ZH2 and ZH3 were Malassezia, Phaeosphaeria, andAltemaria, respectively. The diversity and abundance of fungi after corn straw returning insaline alkali soil for two years decreased compared with that in uncultivated saline alkali soil.
出处
《土壤通报》
CAS
北大核心
2017年第4期937-942,共6页
Chinese Journal of Soil Science
基金
内蒙古自治区饲用作物工程技术研究中心资助项目(MDK2016028)
内蒙古民族大学博士科研启动基金(BS329)
内蒙古自治区高等学校科学研究项目(NJZY16187)资助
关键词
玉米秸秆还田
盐碱地
真菌多样性
高通量测序
Maize straw returning to field
Saline alkali land
Fungal diversity
High-throughput sequencing
