Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Agricultural nutrients"”.
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Understanding the relationship between agricultural nutrients NPS, land management, and climate using distributed hydrologic models
The use of chemical fertilizer has enhanced agricultural production that helped provide food to seven billion people worldwide. Particularly, the use of nitrogen (N) and phosphorus (P) fertilizers, which increased more than nine and four times, respectively, during the last five decades, played …
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Nitrate and Ammonium Transformation and Fate in Groundwater of an Agricultural Watershed: An Isotope and Geochemistry Approach
… and evaluate the fate and processes affecting agricultural nutrients in groundwater. This consisted of three agricultural sites and one naturally vegetated background site. Naturally occurring stable isotopes (delta18O and delta 2H), which are sensitive to seasonality of recharge, were used in …
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Predictability and trends of annual pollutant loads in Midwestern watersheds
… deforestation and increased application of agricultural nutrients have led to a decline in overall quality of our aquatic environment. Additionally, these activities have increased greenhouse gas concentrations globally, warming the earth’s atmosphere and eventually having a detrimental …
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Resource recovery from sanitation to amplify development: Navigating global and local possibilities
Recovery of human-derived resources (e.g., nutrients, energy) from sanitation systems has emerged as an approach that may generate progress toward multiple Sustainable Development Goals (SDGs). However, persistent uncertainties and concerns (e.g., economics, social appropriateness) across a variety …