Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aan4399 |
Convergent evidence for widespread rock nitrogen sources in Earth's surface environment | |
Houlton, B. Z.1; Morford, S. L.1,2; Dahlgren, R. A.1 | |
2018-04-06 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 360期号:6384页码:58-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Nitrogen availability is a pivotal control on terrestrial carbon sequestration and global climate change. Historical and contemporary views assume that nitrogen enters Earth's land-surface ecosystems from the atmosphere. Here we demonstrate that bedrock is a nitrogen source that rivals atmospheric nitrogen inputs across major sectors of the global terrestrial environment. Evidence drawn from the planet's nitrogen balance, geochemical proxies, and our spatial weathering model reveal that-19 to 31 teragrams of nitrogen are mobilized from near-surface rocks annually. About 11 to 18 teragrams of this nitrogen are chemically weathered in situ, thereby increasing the unmanaged (preindustrial) terrestrial nitrogen balance from 8 to 26%. These findings provide a global perspective to reconcile Earth's nitrogen budget, with implications for nutrient-driven controls over the terrestrial carbon sink. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429263100045 |
WOS关键词 | ORGANIC-CARBON ; RATES ; CYCLE ; ECOSYSTEMS ; PHOSPHORUS ; LIMITATION ; ATMOSPHERE ; BIOSPHERE ; FIXATION ; ISOTOPES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/198355 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA; 2.Terra Analyt, Helena, MT USA |
推荐引用方式 GB/T 7714 | Houlton, B. Z.,Morford, S. L.,Dahlgren, R. A.. Convergent evidence for widespread rock nitrogen sources in Earth's surface environment[J]. SCIENCE,2018,360(6384):58-+. |
APA | Houlton, B. Z.,Morford, S. L.,&Dahlgren, R. A..(2018).Convergent evidence for widespread rock nitrogen sources in Earth's surface environment.SCIENCE,360(6384),58-+. |
MLA | Houlton, B. Z.,et al."Convergent evidence for widespread rock nitrogen sources in Earth's surface environment".SCIENCE 360.6384(2018):58-+. |
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