ArticleWater resources research2014
Nebraska's groundwater legacy: Nitrate contamination beneath irrigated cropland.
Article in Water resources research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Vadose zone flushing of fertilizer tracked by isotopes of water and nitrate.Vadose zone journal : VZJ · 2024Article
- Influence of Four Veterinary Antibiotics on Constructed Treatment Wetland Nitrogen Transformation.Toxics · 2024Article
- G-DaM: A Distributed Data Storage with Blockchain Framework for Management of Groundwater Quality Data.Sensors (Basel, Switzerland) · 2022Article
- Deep soil nitrogen storage slows nitrate leaching through the vadose zone.Agriculture, ecosystems & environment · 2022Article
- Water, Health, and Environmental Justice in California: Geospatial Analysis of Nitrate Contamination and Thyroid Cancer.Environmental engineering science · 2021Article
- Coupling the dual isotopes of water (δEnvironmental research letters : ERL [Web site] · 2021Article
- Patterns and predictions of drinking water nitrate violations across the conterminous United States.The Science of the total environment · 2020Article
- Trends in Drinking Water Nitrate Violations Across the United States.Environmental science & technology · 2017Article
- Decomposition approach of the nitrogen generation process: empirical study on the Shimabara Peninsula in Japan.Environmental science and pollution research international · 2016Article
- Significant accumulation of nitrate in Chinese semi-humid croplands.Scientific reports · 2016Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A 31 year record of ∼44,000 nitrate analyses in ∼11,500 irrigation wells was utilized to depict the decadal expansion of groundwater nitrate contamination (N ≥ 10 mg/L) in the irrigated corn-growing areas of eastern and central Nebraska and analyze long-term nitrate concentration trends in 17 management areas (MAs) subject to N fertilizer and budgeting requirements. The 1.3 M contaminated hectares were characterized by irrigation method, soil drainage, and vadose zone thickness and lithology. The areal extent and growth of contaminated groundwater in two predominately sprinkler-irrigated areas was only ∼20% smaller beneath well-drained silt loams with thick clayey-silt unsaturated layers and unsaturated thicknesses >15 m (400,000 ha and 15,000 ha/yr) than beneath well and excessively well-drained soils with very sandy vadose zones (511,000 ha and 18,600 ha/yr). Much slower expansion (3700 ha/yr) occurred in the 220,000 contaminated hectares in the central Platte valley characterized by predominately gravity irrigation on thick, well-drained silt loams above a thin (∼5.3 m), sandy unsaturated zone. The only reversals in long-term concentration trends occurred in two MAs (120,500 ha) within this contaminated area. Concentrations declined 0.14 and 0.20 mg N/L/yr (
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