Groundwater and agriculture: Insights from farmers in central Minnesota on how to protect both
| Autor: | Carrie Jennings, Brittney Johnson, Brian J. Bohman, Leslie Yetka, Jen Kader, Darren Newville |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Pollution
010504 meteorology & atmospheric sciences Water table media_common.quotation_subject Soil Science 01 natural sciences chemistry.chemical_compound Nitrate Medicago sativa Agricultural productivity 0105 earth and related environmental sciences Nature and Landscape Conservation Water Science and Technology media_common business.industry 04 agricultural and veterinary sciences Agronomy chemistry Agriculture Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science business Agronomy and Crop Science Groundwater |
| Zdroj: | Journal of Soil and Water Conservation. 73:122A-127A |
| ISSN: | 1941-3300 0022-4561 |
| DOI: | 10.2489/jswc.73.5.122a |
| Popis: | I n agricultural areas with groundwater that is highly sensitive to pollution and surface water resources that are sensitive to groundwater withdrawal, farmers are under pressure from government agencies and environmental groups to improve their on-farm management practices (Kennedy 2015a, 2015b; Marcotty 2012). One area where conflicts over groundwater and agriculture are growing is the central sands region of Minnesota, United States (Gunderson 2014; Haugen 2014; Marcotty 2013; Robertson 2009; Vogel 2014b). This area is characterized by coarse-textured soils formed from glacial outwash (USDA NRCS 2018), a water table that is vulnerable to pollution (Adams 2016), and extensive agricultural production with crops such as corn ( Zea mays L.), soybean ( Glycine max [L.] Merr.), alfalfa ( Medicago sativa L.), wheat ( Triticum aestivum L.), oats ( Avena sativa L.), potato ( Solanum tuberosum L.), and dry edible beans ( Phaseolus vulgaris L.) (USDA NASS 2014, 2017). While the trend of change in nitrate (NO3) concentrations over time in this region is either stable (Minnesota Pollution Control Agency et al. 2018) or slightly increasing (MDA 2015b), the extent of NO3 contamination in groundwater is already widespread (MN EQB 2017). Nitrate concentrations in groundwater are found at elevated levels in this region for public water systems (PWS) (MDH 2018)… |
| Databáze: | OpenAIRE |
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