文献类型：期刊文献

英文题名：Effects of forest age and season on soil microbial communities in Chinese fir plantations

作者：Hu, Yuxin[1,2] Zhang, Xiongqing[1,2] Chen, Hanyue[1] Jiang, Yihang[1] Zhang, Jianguo[1]

第一作者：Hu, Yuxin

通信作者：Zhang, XQ[1];Zhang, XQ[2]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Efficient Prod Forest Resources, Key Lab Tree Breeding & Cultivat Natl Forestry & G, Beijing, Peoples R China;[2]Nanjing Forestry Univ, Collaborat Innovat Ctr Sustainable Forestry Southe, Nanjing, Peoples R China

年份：2024

卷号：12

期号：8

外文期刊名：MICROBIOLOGY SPECTRUM

收录：;Scopus(收录号：2-s2.0-85201609342);WOS:【SCI-EXPANDED(收录号:WOS:001270914900007)】；

基金：The authors highly appreciate the support of the National Key Research and Development Program of China (No. 2021YFD2201304).

语种：英文

外文关键词：Chinese fir plantations; soil microbial community; age-related changes; seasonal variations; high-throughput sequencing

摘要：Understanding changes in the distribution patterns and diversity of soil microbial communities from the perspectives of age-related changes, seasonal variations, and the interaction between the two factors can facilitate the management of plantations. In Chinese fir plantations, we collected soils from different depths in over-mature forests, mature forests, near-mature forests, middle-aged forests, and young forests in summer, autumn, and winter in China's subtropical regions. As the forests developed, bacterial and fungal communities' diversity changed, reached a minimum value at near-mature forests, and then increased in mature forests or over-mature forests. Near-mature forests had the lowest topological properties. The Shannon index of microbial communities varied with seasonal changes (P < 0.05). Bacterial and fungal community composition at genus level was more closely related to temperature indicators (including daily average temperature, daily maximum temperature, and daily minimum temperature) (P < 0.01, 0.5554 < R-2 <0.8185) than daily average precipitation (P > 0.05, 0.0321 < R-2 <0.6773). Bacteria were clustered by season and fungi were clustered by forest age. We suggested that extending the tree cultivation time of plantations could promote microbial community recovery. In addition, we found some species worthy of attention, including Bacteroidetes in autumn in over-mature forests, and Firmicutes in summer in young forests. IMPORTANCE Chinese fir [Cunninghamia lanceolata (Lamb.) Hook] is an important fast-growing species with the largest artificial forest area in China, with the outstanding problems of low quality in soil. Soil microorganisms play a crucial role in soil fertility by decomposing organic matter, optimizing soil structure, and releasing essential nutrients for plant growth. In order to maintain healthy soil quality and prevent nutrient depletion and land degradation, it is crucial to understand the changes of soil microbial composition and diversity. Our study determined to reveal the change of soil microbial community from stand age, season, and the interaction between the two aspects, which is helpful to understand how interannual changes in different years and seasonal changes in one year affect soil fertility restoration and sustainable forest plantation management. It is a meaningful exploration of soil microbial communities and provides new information for further research.