A case for addressing the unresolved role of permeable shelf sediments in ocean denitrification
A case for addressing the unresolved role of permeable shelf sediments in ocean denitrification
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DOI：
10.1002/lol2.10218
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发表时间：
2021-10
影响因子：
7.8
通讯作者：
Emily J. Chua;M. Huettel;K. Fennel;R. Fulweiler
中科院分区：
文献类型：
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作者：
Emily J. Chua;M. Huettel;K. Fennel;R. Fulweiler
海洋氮循环是海洋生产力的主要驱动力，并影响全球气候。尽管经过几十年的研究，我们仍然对海洋氮循环在地球系统中的作用有不完全的了解。虽然海洋沉积物在海洋氮循环中发挥着重要作用，但其规模和机制在很大程度上不受限制。最近的研究表明，高能量和动态大陆架上的渗透性桑迪沉积物是海洋氮循环的关键组成部分，但缺乏量化其贡献的数据。在这里，我们使用的见解，从测量和建模研究，以证实这一假设，即陆架沉积物是一个被忽视的驱动程序的海洋氮循环。具体来说，我们提出，可渗透的陆架沉积物是激烈的氮转化的网站，并提出了一个三管齐下的方法来解决悬而未决的争议。
The marine nitrogen cycle is a main driver of ocean productivity and affects global climate. Despite decades of study, we still have an incomplete understanding of the role of the marine nitrogen cycle in the Earth system. While marine sediments play a major role in nitrogen cycling in the ocean, magnitudes and mechanisms are largely unconstrained. Recent research suggests that permeable sandy sediments on the highly energetic and dynamic continental shelf are key components of the marine nitrogen cycle, but data to quantify their contribution are lacking. Here, we use insights from measurements and modeling studies to substantiate the hypothesis that shelf sediments are an overlooked driver of the marine nitrogen cycle. Specifically, we propose that permeable shelf sediments are sites for intense nitrogen conversions and suggest a three‐pronged approach to address unresolved controversies.