Soil properties and not plant factors affect both abundant and rare microbial taxa after thinning in a mixed stand of Cunninghamia lanceolata and Sassafras tzumu  

作　　者：Wanxia Peng Tongqing Song Hu Du Feng Wang Fuping Zeng Yang Wang Shulin Chen Yinzhu Chen 

机构地区：[1]Key Laboratory of Agro‑Ecological Processes in Subtropical Region,Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,People’s Republic of China [2]Guangxi Industrial Technology Research Institute for Karst Desertification Control,Nanning 530001,People’s Republic of China [3]Huanjiang Observation and Research Station for Karst Ecosystems,Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410125,People’s Republic of China [4]Hubei Ecology Polytechnic College,Wuhan 430200,People’s Republic of China [5]Hubei Tongshan Damushan State Forest Farm,Tongshan 437652,People’s Republic of China

出　　处：《Journal of Forestry Research》2024年第2期81-94,共14页林业研究（英文版）

基　　金：the Sino-German Cooperation Forestry Major Scientific Research Project(zdczhz2021ky09);the National Natural Science Foundation of China(31971487 and 42277245).

摘　　要：Thinning is an effective management step for sustainable forest development,yet less attention is paid to the restoration of soil microbiota after thinning.In this study,both abundant and rare soil microbial communities(i.e.,bacterial,fungal),were evaluated under various thinning treatments in a mixed stand of Cunninghamia lanceolata and Sassafras tzumu using Mi Seq sequencing.Thinning did not significantly change either abundant or rare bacterial and fungal community composition,but affected their alpha diversity.The Shannon–Wiener indexes of rare fungal taxa under medium thinning were significantly lower than in the light thinning(P<0.05 level).Xanthobacteraceae dominated the abundant bacterial taxa,and Saitozyma and Mortierlla the abundant fungal taxa.The most common rare bacterial taxa varied;there was no prevalent rare fungal taxa under different thinnings.In addition,soil available nitrogen,total phosphorus,and p H had significant effects on rare bacterial taxa.Nutrients,especially available phosphorus,but not nitrogen,affected abundant and rare soil fungi.The results indicate that soil properties rather than plant factors affect abundant and rare microbial communities in soils of mixed stands.Thinning,through mediating soil properties,influences both abundant and rare bacterial and fungal communities in the mixed C.lanceolata and S.tzumu stand.

关 键 词：Diversity Abundant taxa Rare taxa THINNING Mixed stand 

分 类 号：S714[农业科学—林学]