Carbon in river floodplains

IF 29.6 1区地球科学 Q1 ENVIRONMENTAL SCIENCES

Nature Climate Change Pub Date : 2025-05-09 DOI:10.1038/s41558-025-02341-x

Bronwyn Wake

引用次数: 0

Abstract

Rivers play an important role in the transport and alteration of sediment and organic carbon. Yet, the role of floodplains in terrestrial carbon storage is poorly quantified as rivers vary in their erosion rates, transport and deposition of sediment, influenced by meanders, width and depth, among others.

To better understand what controls the timescales for carbon and sediment storage in river floodplains, Emily Geyman of the California Institute of Technology and co-authors used simulations, along with geomorphic mapping and dating techniques, applied to three Alaskan field sites with diverse characteristics. They show that the storage timescales can be predicted from the channel migration rate, channel width and the floodplain width.

查看原文本刊更多论文

河漫滩中的碳

河流在沉积物和有机碳的搬运和蚀变中起着重要作用。然而，洪泛平原在陆地碳储存中的作用很难量化，因为河流受曲流、宽度和深度等因素的影响，其侵蚀速率、沉积物的输送和沉积各不相同。为了更好地理解是什么控制着河漫滩中碳和沉积物储存的时间尺度，加州理工学院的艾米丽·盖曼和合著者利用模拟、地貌测绘和年代测定技术，对阿拉斯加三个具有不同特征的野外地点进行了研究。结果表明，可以通过河道迁移速率、河道宽度和河漫滩宽度来预测河道蓄水的时间尺度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

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.