量化管理行动对森林种植园中地表碳库存的影响大小
Cyril H Melikov1,2, Jacob J Bukoski3,4, Susan C Cook-Patton5
1Environmental Defense Fund, New York, NY USA.
Current forestry reports
|July 10, 2023
概括
森林管理实践,如施肥,插入植被和稀释,会影响地面的碳库存. 场地条件和物种选择显著影响这些影响,对气候缓解战略至关重要.
科学领域:
- 林业科学 林业科学
- 减缓气候变化减缓气候变化减缓
- 生态系统的碳动力学
背景情况:
- 有效的森林管理是缓解气候变化的关键.
- 了解管理对森林碳库存的影响对于气候解决方案至关重要.
- 缺乏关于常见做法如何影响相关规模的碳库存的定量数据.
研究的目的:
- 量化评估和审查无机NPK肥料,与N固定物种交叉种植,以及在种植森林中对地面碳库存的稀释的影响.
- 为设计基于森林的气候解决方案提供基准.
主要方法:
- 现场级经验研究的元分析.
- 常见森林管理实践的定量评估.
主要成果:
- 无机肥料增加了碳库存,但随着时间的推移,效应会减弱,可以通过排放来抵消.
- 与N-固定物种交叉种植对碳储存产生延迟的积极影响.
- 稀释最初会减少碳库存,随着时间的推移,效应会减弱.
- 影响因物种,降水,土壤水分和土地使用历史而受到缓解.
结论:
- 森林管理实践对碳库存有显著的定向影响,但高度取决于环境.
- 必须考虑特定地点的因素,以通过森林管理有效地减缓气候变化.
- 量化效应大小可以指导开发基于森林的气候解决方案.
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