日本四大森林种植物种的碳库存预测
Tomohiro Egusa1, Ryo Nakahata2, Mathias Neumann3
1Faculty of Agriculture, Shizuoka University, Shizuoka, Japan.
The Science of the total environment
|April 6, 2024
概括
积极的森林管理,包括采伐和造林,大大提高了日本种植园的碳封存. 这种方法最大限度地提高了森林碳储量,并有助于缓解全球变暖.
科学领域:
- 林业科学 林业科学
- 气候变化缓解减缓 气候变化缓解减缓
- 生态生态学 生态生态学
背景情况:
- 森林的碳捕获对于缓解全球变暖至关重要.
- 准确的森林生长和碳库存数据对于预测未来影响和优化林业实践至关重要.
- 日本的国家森林库存 (NFIs),特别是直接现场观测 (m-NFIs),为森林碳库存估计提供可靠的数据.
研究的目的:
- 为日本主要种植园物种开发森林年龄-碳密度函数.
- 估计过去和现在森林碳库的变化.
- 评估到2061年各种林业管理情景下的碳捕获潜力.
主要方法:
- 使用了m-NFI数据 (2009-2013) 对四种关键物种进行了分析:Cryptomeria japonica,Chamaecyparis obtusa,Pinus spp.和Larix kaempferi.
- 开发的森林年龄-碳密度函数用于估计碳库存.
- 模拟了五个林业实践场景,采伐和植树率各不相同.
主要成果:
- 估计的增长率和过去的森林碳储量高于之前考虑的水平.
- 一个经过密集管理的场景 (100%的采摘碳保留率,两倍的采摘率,100%的植树) 显示碳捕获率比没有采摘的场景高3-4倍.
- 日本种植的森林在积极管理下显示出重要的碳捕获潜力.
结论:
- 积极的森林管理,包括采伐和造林,最大限度地减少植树林中的碳排放.
- 延长碳在木制品中的停留时间的技术进步可以进一步增强封存.
- 优化林业实践是利用日本森林缓解气候变化的关键.
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