Effects of Cinnamomum camphora coppice planting on soil fertility, microbial community structure and enzyme activity in subtropical China

Frontiers in Microbiology

Microbiology

Han Liu¹  Yanli Li¹  Ting Zhang²  Changlong Xiao³  Yueqi Gu³  Jie Zhang³  He Sun³  Xianghui Lu³  Jiao Zhao³  Zufei Xiao³  Luyuan Sun⁴ 

[1] College of Agriculture, Yangtze University, Jingzhou, China;Jiangxi Academic of Forestry, Nanchang, China;Jiangxi Provincial Engineering Research Center for Seed-Breeding and Utilization of Camphor Trees, School of Hydraulic and Ecological Engineering, Nanchang Institute of Technology, Nanchang, China;Jiangxi Provincial Engineering Research Center for Seed-Breeding and Utilization of Camphor Trees, School of Hydraulic and Ecological Engineering, Nanchang Institute of Technology, Nanchang, China;College of Agriculture, Yangtze University, Jingzhou, China;

关键词: Cinnamomum camphora;    soil fertility;    bacterial community structure;    fungal community structure;    enzyme activity;   

DOI  :  10.3389/fmicb.2023.1104077

 received in 2022-11-21, accepted in 2023-01-10,  发布年份 2023

来源: Frontiers

【 摘 要 】

Cinnamomum camphora (C. camphora) is a broad-leaved evergreen tree cultivated in subtropical China. Currently, the use of C. camphora clonal cuttings for coppice management has become popular. However, the effects of C. camphora coppice planting on soil abiotic and biotic variances remained unclear. In this study, we collected soil from three points in the seven-year C. camphora coppice planting land: under the tree canopy (P15), between trees (P50), and abandoned land (Control) to investigate the effects of C. camphora coppice planting on soil fertility, microbial community structure and enzyme activity. The results revealed that C. camphora coppice planting significantly increased soil fertility in the point under the tree canopy (P15) and point between trees (P50), and P15 had more significant effects than P50. Meanwhile, in P15 and P50, soil bacterial, fungal alpha-diversity were improved and microbial community structures were also changed. And the changes of soil organic carbon and total nitrogen promote the transformation of soil bacterial, fungal community structures, respectively. In addition, C. camphora coppice planting significantly (p < 0.05) increased soil urease (UE), polyphenol oxidase, and peroxidase activities, while significantly decreased soil ACP activity. This study demonstrated that the C. camphora coppice planting could improve soil fertility in subtropical China, which promoted the transformation of soil microbial community from oligotrophs (K-strategist) to copiotrophs (r-strategist). Thus, this work can provide a theoretical basis for soil nutrient variation and productive management of C. camphora coppice plantation in subtropical China.

【 授权许可】

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Copyright © 2023 Sun, Zhang, Zhao, Lu, Xiao, Xiao, Zhang, Gu, Sun, Liu and Li.