Groundwater level and nitrate concentration trends on Mountain Home Air Force Base, southwestern Idaho

Williams, Marshall L.

doi:10.3133/ofr20141022

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Comparison Of Results From November 2012 and July 2013 Seepa1

Temporal Variation Of Nitrate-n Concentrations In Groundwater1

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Cited by 2 publications

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“…Some of the difference in seepage might have resulted from relatively high uncertainty in measurements made at main-stem site 4. (Williams, 2014), which is similar to patterns in seepage measured for the subreaches between main-stem sites 4 and 5, and 5 and 11 ( fig. 7).…”

Section: Comparison Of Results From November 2012 and July 2013 Seepasupporting

confidence: 64%

Evaluation of seepage and discharge uncertainty in the middle Snake River, southwestern Idaho

Wood¹,

Williams²,

Evetts³

et al. 2014

Scientific Investigations Report

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Section: Comparison Of Results From November 2012 and July 2013 Seepasupporting

confidence: 64%

Evaluation of seepage and discharge uncertainty in the middle Snake River, southwestern Idaho

Wood¹,

Williams²,

Evetts³

et al. 2014

Scientific Investigations Report

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“…Generally, the dynamic changes and temporal trends of nitrate concentrations were explored using long-term monitoring datasets [22,31,32]. Based on the long-term observation data, we investigated the dynamic of groundwater nitrate-N concentrations under agricultural activities.…”

Section: Temporal Variation Of Nitrate-n Concentrations In Groundwatermentioning

confidence: 99%

Regional Variability of Agriculturally-Derived Nitrate-Nitrogen in Shallow Groundwater in China, 2004–2014

et al. 2018

Sustainability

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Abstract:Increasing diffuse nitrate loading of groundwater has long been a major environmental and health concern in China, but little is known about the spatial and temporal variability of nitrate concentrations in groundwater at regional scales. The aim of this study was to assess the spatial distribution and variation of nitrate-nitrogen (NO 3 − -N) concentrations in groundwater. We used groundwater quality monitoring data and soil physical characteristics from 21 agro-ecosystems in China for years 2004 to 2014. The results indicated that NO 3 − -N concentrations were highly variable in shallow groundwater across the landscape. Over the study period, most of the NO 3 − -N concentrations were below the World Health Organization permissible limit for drinking water (<10 mg N·L). NO 3 − -N concentrations in groundwater neither significantly increased nor decreased in most agro-ecosystems, but fluctuated with seasons. In addition, groundwater NO 3 − -N under purple soil (6.81 mg·L −1 ) and Aeolian sandy soil (6.02 mg·L −1 ) were significantly higher (p < 0.05) than that under other soil types, and it was medium-high (4.49 mg·L −1 ) under aquic cinnamon soil. Elevated nitrate concentrations occurred mainly in oasis agricultural areas of northwestern China, where farmlands with coarse-textured soils use flood irrigation. Therefore, arid and semi-arid areas are expected to sustain high NO 3 − -N concentrations in groundwater. Mitigation strategies can prevent this problem, and include control of N fertilizer input, balanced fertilization, proper rotation system, adoption of improved irrigation methods, and establishment of environmental policies.

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Groundwater level and nitrate concentration trends on Mountain Home Air Force Base, southwestern Idaho

Abstract: Local well No. Years monitored* Local well No. Years monitored*

Cited by 2 publications

References 0 publications

Evaluation of seepage and discharge uncertainty in the middle Snake River, southwestern Idaho

Evaluation of seepage and discharge uncertainty in the middle Snake River, southwestern Idaho

Regional Variability of Agriculturally-Derived Nitrate-Nitrogen in Shallow Groundwater in China, 2004–2014

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