[1]Gao Wei,Ye Gongfu,Yue Xinjian,et al.Soil Microbial Communities in Different Protection Forest Types in Coastal Sand Dunes of Fujian Province[J].Research of Soil and Water Conservation,2024,31(03):204-212.[doi:10.13869/j.cnki.rswc.2024.03.029]
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Soil Microbial Communities in Different Protection Forest Types in Coastal Sand Dunes of Fujian Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 03
Page number:
204-212
Column:
Public date:
2024-04-30
- Title:
- Soil Microbial Communities in Different Protection Forest Types in Coastal Sand Dunes of Fujian Province
- Keywords:
- coastal sand dune; protection forest; soil microbial community; phospholipids fatty acid; subtropical China
- CLC:
- S154.3; S714.3
- DOI:
- 10.13869/j.cnki.rswc.2024.03.029
- Abstract:
- [Objective] The aims of this study are to understand the soil microbial communities in different protection forests in coastal sand dune ecosystem, and to provide theoretical basis for sustainable management of the protection forests. [Methods] A study was conducted to compare the effects of different forests on soil microbial composition and the relationship between soil microorganism and environmental factors by phospholipid fatty acid method(PLFA)in 5 forests including secondary forest, and plantations of Casuarina equisetifolia, Pinus elliottii, Acacia crassicarpa and Eucalyptus urophylla×E. grandis. [Results](1)18 kinds of PLFA biomarkers were detected in the soils of different protection forests in coastal sand dune ecosystem, which were most in Eucalyptus urophylla×E. grandis plantation and secondary forest, and least in Pinus elliottii and Acacia crassicarpa plantations.(2)The contents of total PLFA, gram-positive bacteria and gram-negative bacteria were all higher in Eucalyptus urophylla×E. grandis plantation and secondary forest, and lower in Acacia crassicarpa and Casuarina equisetifolia plantations. In addition, the fungi content was significantly higher in Eucalyptus urophylla×E. grandis plantation than in other forest types, the content of soil fungi in Eucalyptus urophylla×E. grandis plantation was the highest, and that of arbuscular mycorrhizal in secondary forest was the highest, no significant difference was found among other protection forests.(3)The soil microbial diversity and evenness of the secondary forest were higher than those of the four plantations.(4)The soil pH, fine root carbon and nitrogen contents had the greatest impact on soil microbial community, followed by soil total nitrogen and nitrate nitrogen contents, litter lignin/nitrogen and fine root carbon nitrogen ratio. [Conclusion] The effects of protection forests on soil microbial community are significantly different. The introduction of Eucalyptus urophylla×E. grandis and native trees in the coastal Casuarina equisetifolia protection forest can increase soil microbial diversity and improve forest ecological functions.
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Last Update:
2024-04-30