营养物
地理
领域(数学)
环境科学
农林复合经营
生物
生态学
数学
纯数学
出处
期刊:University of Calgary - PRISM
日期:2001-01-01
被引量:1
摘要
Groundwater in an unconfined, sandy aquifer shows evidence of impact from manure use.Average groundwater concentrations of NO3-N and TP are 38 mg/L and 0.26 mg/L, respectively.Nitrate concentrations are being naturally
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