| Autor: |
Yu, Mengjie, Yue, Xinrui, Wang, Ting, Shen, Qunli, Wang, Xianting, Wu, Yuhuan |
| Předmět: |
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| Zdroj: |
Plant & Soil; Feb2024, Vol. 495 Issue 1/2, p271-285, 15p |
| Abstrakt: |
Background and Aims: Critical peatland functions are intricately linked to biogeochemical processes mediated by soil microbes. The belowground microbial activities are associated and interacted with aboveground vegetation types. Vegetation shifts from Sphagnum mosses to vascular plants in peatlands may alter soil microbial community, leading to changes in ecological functions. However, our knowledge in this area is still limited. Methods: We selected four sites (two core areas and two marginal areas) in the Sphagnum-dominated wetland in Zhejiang Hynobius amjiensis National Nature Reserve. At each site, peat soils under three common peatland vegetation communities (OW: only Sphagnum; HW: herbaceous plants with Sphagnum carpet; SW: shrubs with Sphagnum carpet) were collected at two depths. A high-throughput sequencing method was adopted to investigate the alteration in soil bacterial and fungal communities. Results: Vascular plant did not significantly alter soil properties and microbial α-diversity, given that mosses are still the dominant plants and have higher resistance levels to multiple environmental-changes than vascular plants. The features of bacterial co-occurrence network in HW revealed higher stability than that in OW and SW, indicating that herbaceous plants may contribute to the stable coexistence with Sphagnum. The microbial diversity, community structure and putative functions differed between core and marginal areas of the peatland. Conclusion: The results demonstrated that the spatial heterogeneity of environmental factors may play a more important role in microbial activities than vegetation types at the early successional stages. These insights provide a novel perspective for development of management practices to preserve subtropical peatlands. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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