Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-019-12566-y |
Global patterns of nitrate storage in the vadose zone | |
Ascott, M. J.1; Gooddy, D. C.1; Wang, L.2; Stuart, M. E.1; Lewis, M. A.1; Ward, R. S.2; Binley, A. M.3 | |
2019-10-11 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Global-scale nitrogen budgets developed to quantify anthropogenic impacts on the nitrogen cycle do not explicitly consider nitrate stored in the vadose zone. Here we show that the vadose zone is an important store of nitrate that should be considered in future budgets for effective policymaking. Using estimates of groundwater depth and nitrate leaching for 1900-2000, we quantify the peak global storage of nitrate in the vadose zone as 605-1814 Teragrams (Tg). Estimates of nitrate storage are validated using basin-scale and national-scale estimates and observed groundwater nitrate data. Nitrate storage per unit area is greatest in North America, China and Europe where there are thick vadose zones and extensive historical agriculture. In these areas, long travel times in the vadose zone may delay the impact of changes in agricultural practices on groundwater quality. We argue that in these areas use of conventional nitrogen budget approaches is inappropriate. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414869900002 |
WOS关键词 | UNSATURATED ZONE ; TIME-LAG ; SPATIALLY EXPLICIT ; MAJOR AQUIFERS ; NITROGEN-CYCLE ; WATER ; GROUNDWATER ; POLLUTION ; BENEATH ; LAND |
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/204590 |
专题 | 资源环境科学 |
作者单位 | 1.British Geol Survey, Maclean Bldg, Crowmarsh OX10 8BB, Oxon, England; 2.British Geol Survey, Environm Sci Ctr, Nicker Hill, Keyworth NG1 5GG, Notts, England; 3.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England |
推荐引用方式 GB/T 7714 | Ascott, M. J.,Gooddy, D. C.,Wang, L.,et al. Global patterns of nitrate storage in the vadose zone[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Ascott, M. J..,Gooddy, D. C..,Wang, L..,Stuart, M. E..,Lewis, M. A..,...&Binley, A. M..(2019).Global patterns of nitrate storage in the vadose zone.NATURE COMMUNICATIONS,8. |
MLA | Ascott, M. J.,et al."Global patterns of nitrate storage in the vadose zone".NATURE COMMUNICATIONS 8(2019). |
条目包含的文件 | 条目无相关文件。 |
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