大型树木的基于树木的属性更有效地调节地面碳库存,而不是温带树叶森林中的基于特征的属性
Maryam Kazempour Larsary1, Hassan Pourbabaei1, Ali Salehi1
1Department of Forestry, Faculty of Natural Resources, University of Guilan, Somehsara 43619-96196, Iran.
Plant diversity
|July 30, 2025
概括
大型树木 (L型树木) 通过采用资源获取策略,比小型树木 (S型树木) 更多地调节森林碳库存. 森林管理应优先考虑高功能的L树,以实现碳中和和减缓气候变化.
科学领域:
- 森林生态 森林生态
- 碳封存是一种碳封存技术.
- 植物功能特征 植物功能特征
背景情况:
- 大型树木 (L型树木) 通常被认为是关键的碳储存库,但物种在树木大小上的功能策略的作用尚不清楚.
- 了解树木的大小和功能特征如何影响地面碳库存 (AGCS) 对森林管理和气候变化缓解至关重要.
研究的目的:
- 为了研究不同大小的树木 (L树与S树) 中树木物种的功能策略如何调节温带树叶森林中的AGCS.
- 在不同的环境条件下,模拟基于树的和基于特征的属性对AGCS的影响.
主要方法:
- 利用来自99个森林地块的数据,对L型树和S型树的树属性 (多样性,密度,大小不平等) 和特征属性 (多样性,主导) 的多变量效应进行建模.
- 采用四种不同的L树值大小方法来预测沿地形和土壤梯度的AGCS.
主要成果:
- 发现L-树比S-树和非生物因素更有效地调节AGCS (31.29-93.20%).
- 在L型树木中,占主导地位的资源获取策略 (高特定叶面积,低叶干物质含量) 与S型树木的资源节约策略相比,促进了更高的AGCS.
结论:
- 树种的功能策略,特别是L型树的功能策略,是温带树叶森林中AGCS的关键调节者.
- 森林管理和恢复应优先考虑功能主导的树种来捕获碳,同时保持多特征的多样性.
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