遗弃导致森林结构和土壤有机碳库存在莫索竹林的变化
Yaowen Xu1,2,3, Jiejie Jiao2, Chuping Wu2
1Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China.
Plants (Basel, Switzerland)
|August 29, 2024
概括
森林被遗弃增加了莫索竹生物质和土壤有机碳 (SOC) 库存. 土壤的特性,特别是总,在地表土壤和地下土壤中不同地驱动SOC积累.
科学领域:
- 林业和土壤科学 林业和土壤科学
- 气候变化缓解缓解 气候变化缓解
背景情况:
- 土壤碳池对于气候变化适应至关重要.
- 由于经济和政策压力,中国南部的莫索竹林面临着被遗弃的风险.
- 了解废弃对森林结构和土壤有机碳 (SOC) 的影响至关重要.
研究的目的:
- 调查莫索竹林放弃对森林结构和SOC库存的影响.
- 确定废弃的莫索竹林中SOC库存的关键驱动因素.
主要方法:
- 密集管理与废弃的莫索竹林的比较,废弃时间不同.
- 测量森林结构特征 (高度,直径,山顶密度,生物质).
- 对土壤属性的分析,包括矿物成分,营养素 (总) 和SOC.
主要成果:
- 废弃导致了高峰密度,生物质和SOC库存的增加.
- SOC驱动因素因土壤深度而异:矿物保护和土壤表层的总,地下的总.
- 地下土壤在SOC库存监管中起着至关重要的作用.
结论:
- 莫索竹林的废弃对生物质和SOC库存产生了积极的影响.
- 土壤特性,特别是总,是SOC的关键调节者,具有深度依赖的机制.
- 地下管理对于优化废弃的莫索竹林中SOC封存至关重要.
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