A unified explanation for the morphology of raised peatlands
A unified explanation for the morphology of raised peatlands
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DOI：
10.1038/s41586-023-06807-w
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发表时间：
2023-12
期刊：
影响因子：
64.8
通讯作者：
A. Cobb;R. Dommain;Kimberly Yeap;Hannan Cao;N. Dadap;Bodo Bookhagen;Paul H Glaser;Charles F Harvey
中科院分区：
文献类型：
--
作者：
A. Cobb;R. Dommain;Kimberly Yeap;Hannan Cao;N. Dadap;Bodo Bookhagen;Paul H Glaser;Charles F Harvey
隆起的泥炭地，或沼泽，是完全由有机物组成的平缓隆起的地貌，在任何陆地生态系统中，单位面积储存的碳最多。沼泽的形状是至关重要的，因为它们的圆顶形态，占大部分的碳沼泽存储，并决定他们将如何应对干预，停止温室气体排放和火灾后，人为排水，。然而，目前还缺乏一个普遍的理论来推断沼泽的形态。在这里，我们表明，一个方程的基础上通用的沼泽的过程解释了它们的形态在整个生物群落，从阿拉斯加，通过热带地区，新西兰。与早期的沼泽形态模型，试图描述只有长期平衡的形状，，因此，不适用于大多数沼泽，-，我们的方法没有这样的假设，并使得它可以推断完整的形状沼泽从一个样本的海拔，如一个单一的海拔样带。我们的研究结果为定量推断地球历史上沼泽的形态，水文和碳储存提供了基础，也为通过重新润湿世界各地受损沼泽来规划自然气候解决方案提供了基础。
Raised peatlands, or bogs, are gently mounded landforms that are composed entirely of organic matter, , –and store the most carbon per area of any terrestrial ecosystem. The shapes of bogs are critically important because their domed morphology,,accounts for much of the carbon that bogs store and determines how they will respond to interventions,to stop greenhouse gas emissions and fires after anthropogenic drainage, , –. However, a general theory to infer the morphology of bogs is still lacking,,. Here we show that an equation based on the processes universal to bogs explains their morphology across biomes, from Alaska, through the tropics, to New Zealand. In contrast to earlier models of bog morphology that attempted to describe only long-term equilibrium shapes,,and were, therefore, inapplicable to most bogs, –, our approach makes no such assumption and makes it possible to infer full shapes of bogs from a sample of elevations, such as a single elevation transect. Our findings provide a foundation for quantitative inference about the morphology, hydrology and carbon storage of bogs through Earth’s history, as well as a basis for planning natural climate solutions by rewetting damaged bogs around the world.