[1]Yan Hualing,Lin Gengen,Yang Qiaoqiao,et al.Effects of different vegetation restoration measures on soil carbon sequestration functional bacteria in eroded areas of South China[J].Research of Soil and Water Conservation,2025,32(04):92-99.[doi:10.13869/j.cnki.rswc.2025.04.044]
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Effects of different vegetation restoration measures on soil carbon sequestration functional bacteria in eroded areas of South China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
32
Number of periods:
2025 04
Page number:
92-99
Column:
Public date:
2025-07-10
- Title:
- Effects of different vegetation restoration measures on soil carbon sequestration functional bacteria in eroded areas of South China
- CLC:
- S154.3
- DOI:
- 10.13869/j.cnki.rswc.2025.04.044
- Abstract:
- [Objective] This study aims to explore the patterns of change in soil carbon sequestration functional bacteria during vegetation restoration in eroded areas, providing a scientific basis for accurately estimating the microbial carbon sequestration potential of global terrestrial ecosystems. [Methods] Sample plots were selected in severely eroded areas of Changting County, with three vegetation restoration measures(small-hole grass sowing, contour grass-shrub strips, and grass-shrub-tree mixed planting) as experimental treatments, and untreated sample plots as the control. Fluorescent quantitative PCR and cbbL high-throughput sequencing were used to analyze the effects of vegetation restoration on soil carbon sequestration bacterial communities. [Results] Compared with the untreated plots, the vegetation restoration plots exhibited a higher abundance of carbon sequestration functional bacteria and a greater diversity of carbon sequestration bacterial communities. Specifically, in the small-hole grass sowing and the contour grass-shrub strips, the abundance of carbon sequestration bacteria increased significantly by 149.71 times and 225.61 times, respectively, compared to the untreated plots. The Shannon index of carbon sequestration bacteria in the small-hole grass sowing, contour grass-shrub strips, and grass-shrub-tree mixed planting plots increased significantly by 33.52%, 26.61%, and 54.18%, respectively, compared to the untreated plots. Vegetation restoration measures also changed the composition of the carbon sequestration bacterial communities by increasing the total soil organic carbon content(48.30%, p=0.002). In addition, all three vegetation restoration measures shifted the dominant carbon sequestration bacteria in the eroded areas from Rhodovastum to Nocardia. [Conclusion] Vegetation restoration significantly improves soil fertility in eroded areas and has a positive impact on the soil carbon sequestration functional bacterial communities.
- References:
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Last Update:
2025-07-20