Zobrazeno 1 - 10 of 12 pro vyhledávání: '"D. G. Hopkins"'
1
Association of Cadmium in Durum Wheat Grain with Soil Chloride and Chelate-Extractable Soil Cadmium
Autor: Wendell A. Norvell, Ross M. Welch, J. Wu, D. G. Hopkins
Publikováno v: Soil Science Society of America Journal. 64:2162-2168
Cadmium uptake by food crops needs to be understood in order to limit Cd accumulation in the food chain. Cadmium is a potentially toxic heavy metal with no known benefit to humans, and plant foods are the predominant sources of Cd in human diets. In
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b5393a06fbddfcf2497dc067a3cc1c2
https://doi.org/10.2136/sssaj2000.6462162x
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2
Detecting a salinity plume in an unconfined sandy aquifer and assessing secondary soil salinization using electromagnetic induction techniques, North Dakota, USA
Autor: J. L. Richardson, D. G. Hopkins
Publikováno v: Hydrogeology Journal. 7:380-392
Land-use changes on the Sheyenne Delta in southeastern North Dakota, USA, have prompted research on impacts to the unconfined Sheyenne Delta aquifer (SDA). This study examines effects of the saline discharge of a flowing artesian well that taps the D
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d4e1c61b42142086d013457e62e6978
https://doi.org/10.1007/s100400050210
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3
Dispersive Erosion and Entisol-Panspot Genesis in Sodium-Affected Landscapes
Autor: D. G. Hopkins, J. L. Richardson, M. D. Sweeney
Publikováno v: Soil Science Society of America Journal. 55:171-177
In Natriboroll complexes, commonly barren, eroded Entisol or remnant Natriboroll areas occur that are devoid of vegetation. This study investigates the genesis, stratigraphy, and characteristics of panspots. The study consists of a detailed grid samp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26157976db4817880e0f2d7c5b53ece5
https://doi.org/10.2136/sssaj1991.03615995005500010030x
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4
Improved Prediction and Mapping of Soil Copper by Kriging with Auxiliary Data for Cation-Exchange Capacity
Autor: Wendell A. Norvell, M. G. Ulmer, Ross M. Welch, D. B. Smith, J. Wu, D. G. Hopkins
Publikováno v: Soil Science Society of America Journal. 67:919
Measurements of Cu or other trace elements in soils are rarely available in sufficient abundance to permit accurate mapping of large areas. In contrast, information is more widely available for major soil characteristics, such as cation-exchange capa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::973a2f685a82d3ea4f6f508779132964
https://doi.org/10.2136/sssaj2003.0919
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6
Effects of Revegetation on Surficial Soil Salinity in Panspot Soils
Autor: D.R. Kirby, D. G. Hopkins, J. L. Richardson, M. D. Sweeney
Publikováno v: Journal of Range Management. 44:215
Panspots and transition zone panspots (slickspots) from a Leptic/Typic Natriboroll soil complex in western North Dakota were compared to determine the effects of secondary plant succession upon soil properties. Herbage and rooting characteristics wer
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bd67dd0488aa7ffc179cce6ce289955
https://doi.org/10.2307/4002944
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