Return the burn

IF 29.6 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES Nature Climate Change Pub Date : 2024-11-05 DOI:10.1038/s41558-024-02188-8
Alyssa Findlay
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返回烧伤
木本植物已经扩展到许多草原,部分原因是人类活动抑制了自然火灾。在草原上恢复用火是保护战略的一个转变,旨在改善这些依赖用火的生态系统的健康状况。然而,火的排斥会改变生态系统的特征,尤其是在经历过树木大面积扩张的地区,重新引入火会对碳循环(例如由于树木死亡)以及其他营养循环产生重要影响。蒙大拿大学的贾斯汀-盖伊及其同事在美国大平原北部进行的实验中就是这样做的。他们评估了木材覆盖梯度上土壤碳、热原碳和氮浓度的变化,发现火灾两年后土壤碳有所增加。此外,考虑到存在的两种主要针叶树,他们发现刺柏的死亡率高于松柏。与碳相比,这导致了更大的相对氮损失,因为刺柏作为地上生物量储存的碳较少,但含有更多的氮。这些结果表明,火灾对生态系统碳动态的影响将取决于存在的树木类型,这也是火灾管理计划需要考虑的一个方面。
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来源期刊
Nature Climate Change
Nature Climate Change ENVIRONMENTAL SCIENCES-METEOROLOGY & ATMOSPHERIC SCIENCES
CiteScore
40.30
自引率
1.60%
发文量
267
审稿时长
4-8 weeks
期刊介绍: Nature Climate Change is dedicated to addressing the scientific challenge of understanding Earth's changing climate and its societal implications. As a monthly journal, it publishes significant and cutting-edge research on the nature, causes, and impacts of global climate change, as well as its implications for the economy, policy, and the world at large. The journal publishes original research spanning the natural and social sciences, synthesizing interdisciplinary research to provide a comprehensive understanding of climate change. It upholds the high standards set by all Nature-branded journals, ensuring top-tier original research through a fair and rigorous review process, broad readership access, high standards of copy editing and production, rapid publication, and independence from academic societies and other vested interests. Nature Climate Change serves as a platform for discussion among experts, publishing opinion, analysis, and review articles. It also features Research Highlights to highlight important developments in the field and original reporting from renowned science journalists in the form of feature articles. Topics covered in the journal include adaptation, atmospheric science, ecology, economics, energy, impacts and vulnerability, mitigation, oceanography, policy, sociology, and sustainability, among others.
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