ORIGINAL RESEARCH
Structure of Microbial Communities of Castanopsis hystrix Plantations at Different Stand-Ages
Han Sheng 1,2,3,4,5
,
 
,
 
Juxiu Liu 1,2,3,4
,
 
Zhiqi Li 4,6
,
 
Xu Li 1,2,3,4
 
 
 
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1
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 723 Xingke Road, Guangzhou 510650, China
 
2
National Ecological Science Data Center Guangdong Branch, 723 Xingke Road, Guangzhou 510650, China
 
3
Guangdong Province Data Center of Terrestrial and Marine Ecosystems Carbon Cycle, 723 Xingke Road, Guangzhou 510650, China
 
4
Guangzhou Collaborative Innovation Center on Science-tech of Ecology and Landscape, 723 Xingke Road, Guangzhou 510650, China
 
5
College of Forestry & Architecture, South China Agricultural University, Guangzhou, 510642, China
 
6
Guangzhou Forestry and Landscape Research Institute, Guangzhou 510650, China
 
 
Submission date: 2025-05-07
 
 
Final revision date: 2025-07-13
 
 
Acceptance date: 2025-08-31
 
 
Online publication date: 2025-11-17
 
 
Corresponding author
Xu Li   

Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, 723 Xingke Road, Guangzhou 510650, China
 
 
 
KEYWORDS
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ABSTRACT
Soil microorganisms play an important role in nutrient cycling in forest ecosystems, so it is important to investigate the changes in soil microorganisms with forest age. We collected soil at different soil depths (0-10 cm, 10-20 cm, and 20-30 cm) to investigate the microbial phospholipid fatty acids (PLFAs) and the effects of soil properties and plant diversity on soil microbial PLFAs. The results showed that: (1) with the increase of forest age, the total PLFAs, fungi, and bacteria content of the 0-10 cm soil layer showed a decreasing, increasing, and then decreasing trend. (2) Soil fungi and bacteria showed significant correlations with soil organic carbon, pH, available phosphorus, nitrate nitrogen, available nitrogen, total nitrogen, β-glucosidase activity, acid phosphomonoesterase activity, phenol oxidase activity, peroxidase activity, and microbial biomass phosphorus. (3) The total PLFAs, fungi, and bacteria contents in the 0-10 cm soil layer were higher than those in the 10-20 cm soil layer and the 20-30 cm soil layer. It should also be noted that the microbial PLFAs declined as the stand age increased to 10 years, and fertilizers should be reasonably applied to improve soil fertility in future C. hystrix plantation forest management.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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