<affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Colorado</region>
</placeName>
<wicri:cityArea>Respectively, Project Engineer, CH2M‐Hill, 2525 Airpark Drive, Redding, California 96049; Soil Scientist, USDA‐ARS, Great Plains Systems Research Unit, P.O. Box E, Fort Collins, Colorado 80522; Water Quality Specialist, Colorado State University Cooperative Extension, Colorado State University, Fort Collins, Colorado 80523; Soil Scientist, USDA‐ARS, Soil‐Plant‐Nutrient Research Unit, P.O. Box E, Fort Collins</wicri:cityArea>
</affiliation>