Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR024139 |
Impacts of Subsurface Tile Drainage on AgeConcentration Dynamics of Inorganic Nitrogen in Soil | |
Woo, Dong K.1,2; Kumar, Praveen1,3 | |
2019-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:2页码:1470-1489 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We explore the impacts of tile drains in agricultural fields on the coupled age and concentration dynamics of nitrate, immobile ammonium, mobile ammonia and ammonium, and nonreactive tracers such as chloride. We implement two mobile interacting pore domains to capture matrix and preferential flow paths in a coupled ecohydrology and biogeochemistry model, Dhara. We apply this model to an agricultural farm that utilizes a corn-soybean rotation in the Midwestern United States located in the Intensively Managed Landscapes Critical Zone Observatory. In general, we observe both low concentration and age of nitrate in the areas that are classified as topographic depressions even with the presence of tile drains. Also, an increase in the age of mobile ammonia/ammonium is observed after installing tile drains. This is in contrast to the cases for nitrate, immobile ammonium, and nonreactive tracer. These results arise because the depletion of mobile ammonia/ammonium due to tile drainage causes a high mobility flux from immobile ammonium to mobile ammonia/ammonium, which also carries a considerable amount of relatively old age of nitrogen from immobile ammonium to mobile ammonia/ammonium. These results illustrate how storm event scale dynamics impact spatial heterogeneity and temporal variability of the efflux, which helps in disentangling the complexity of nitrogen dynamics in the soil. This understanding can contribute to precision agriculture for nitrogen applications to reduce environmental impacts. Plain Language Summary Age-concentration dynamics for inorganic nitrogen in the soil characterizes for how long and how much nitrogen is present in the soil and how these vary in space and time. This paper shows how the presence of subsurface tile drains, a dominant hydrologic control in the midwestern United States and many other parts of the world, structures this variability. It also argues that using traditional tracer methods, such as chloride and bromide, does not capture the longer residence of nitrogen in the soil due to its complex reactive nature in the soil. By understanding what controls these variabilities, we can develop new methods for reducing the application of fertilizers. |
英文关键词 | nitrogen age mean age inorganic nitrogen nitrate reactive tile drainage |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461858900031 |
WOS关键词 | TRANSIT-TIME DISTRIBUTIONS ; GENERALIZED EXPOSURE TIME ; PREFERENTIAL FLOW ; MULTICOMPONENT MIXTURES ; HYDRAULIC FUNCTIONS ; REACTIVE TRANSPORT ; MODEL DEVELOPMENT ; MACROPOROUS SOIL ; WATER-QUALITY ; NITRATE |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
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/181302 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA; 2.Lawrence Berkeley Natl Lab, Berkeley, CA USA; 3.Univ Illinois, Dept Atmospher Sci, Urbana, IL 61801 USA |
推荐引用方式 GB/T 7714 | Woo, Dong K.,Kumar, Praveen. Impacts of Subsurface Tile Drainage on AgeConcentration Dynamics of Inorganic Nitrogen in Soil[J]. WATER RESOURCES RESEARCH,2019,55(2):1470-1489. |
APA | Woo, Dong K.,&Kumar, Praveen.(2019).Impacts of Subsurface Tile Drainage on AgeConcentration Dynamics of Inorganic Nitrogen in Soil.WATER RESOURCES RESEARCH,55(2),1470-1489. |
MLA | Woo, Dong K.,et al."Impacts of Subsurface Tile Drainage on AgeConcentration Dynamics of Inorganic Nitrogen in Soil".WATER RESOURCES RESEARCH 55.2(2019):1470-1489. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Woo, Dong K.]的文章 |
[Kumar, Praveen]的文章 |
百度学术 |
百度学术中相似的文章 |
[Woo, Dong K.]的文章 |
[Kumar, Praveen]的文章 |
必应学术 |
必应学术中相似的文章 |
[Woo, Dong K.]的文章 |
[Kumar, Praveen]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论