土壤微生物社区的结构,功能和网络沿着红树林恢复时间序列
Dangge Sun1, Yiyi Huang1, Zhangming Wang2
1Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems/Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
The Science of the total environment
|January 1, 2024
概括
种植Sonneratia apetala可以改善恢复的红树林中的土壤肥力和微生物生物量. 然而,植树可能会随着时间的推移增加土壤微生物网络的脆弱性.
科学领域:
- 生态生态学 生态生态学
- 微生物学 微生物学
- 环境科学 环境科学
背景情况:
- 红树林在生态和经济上是有价值的,但在全球范围内面临着退化.
- 由于其适应能力,Sonneratia apetala被广泛用于中国南部的红树林恢复.
- 了解土壤微生物对S. apetala植树的反应对于有效的恢复至关重要.
研究的目的:
- 调查土壤特性和微生物群落在S. apetala植树阶段的变化.
- 为了比较森林覆盖的红树林中的微生物网络与自然森林和裸露区域.
- 评估植树年龄对土壤微生物结构,功能和网络稳定性的影响.
主要方法:
- 对土壤物理化学特性和微生物生物质的分析.
- 使用测序技术检查土壤微生物群落的结构和功能.
- 构建和分析土壤微生物共发生网络.
主要成果:
- 土壤盐度,有机碳,总和微生物生物量随着S. apetala森林化年龄的增加而增加.
- 细菌α多样性和土壤pH值随着植树的年龄而下降.
- 微生物社区结构受到土壤特性的影响;细菌社区更敏感.
- 空气性化学异质营养素增加,而硫酸盐降解细菌随着植树年龄的增长而减少.
- 微生物网络的模块化程度增加,但稳定性和强度随着时间的推移而下降.
结论:
- 索纳拉提亚 (Sonneratia apetala) 的植树增加了土壤的肥力和微生物生物质.
- 森林植被改变了土壤微生物社区的结构和功能.
- 增加的植树年龄导致更复杂但不太稳定的土壤微生物网络,表明潜在的脆弱性.
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