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Showing items 1 through 9 of 149.
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Library Resource
This paper uses multiple regression analysis to examine the effects of energy resource development on sale prices of agricultural land in western North Dakota. The findings suggest that energy resources development has exerted only modest upward pressure on agricultural land values in the northern Great Plains. The land market in this region remains dominated by active farmers who are purchasing farmland as a long-term investment, and energy development has not had a major impact on the structure of that market.
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Library Resource
Policy issues surrounding Federal programs for land retirement as a means of curtailing soil erosion are discussed in this paper. The analysis is structured around productivity differentials observed for New York cropland rated as highly erosive, moderately erosive, or nonerosive.
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Library Resource
Important linkages between farm management variables, soil loss, crop yields, and incentives to practice soil conservation have often been omitted from previous empirical studies, due to regional data limitations and incomplete knowledge of soil loss/crop yiled relationships. An optimal control model is developed with explicit attention to interactions between management choices, soil loss, and long-term farmland productivity.
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Documents de politique et mémoires
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Library Resource
Documents de politique et mémoires
This report presents the effects of alternative crop and soil management systems on annual soil losses and revenues by land class and by farm in the Muskrat Lake Watershed, Mountrail County of North Dakota.
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Library Resource
Documents de politique et mémoires
Myanmar, Bangladesh, Japon, Asie
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Library Resource
Documents de politique et mémoires
Myanmar, Bangladesh, Japon, Asie
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Library Resource
Documents de politique et mémoires
Myanmar, Bangladesh, Japon, Asie
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Library Resource
En el articulo principal sobre la silvicultura y la seguridad alimentaria se resalta la importancia que tiene la silvicultura en el mantenimiento, mejora o rehabilitacin de la capacidad productiva de la agricultura, el rendimiento directo de alimentos vegetales y animales, y su contribucin a la satisfaccin de las necesidades de energa de los hogares para la preparacin de los alimentos. Le sigue un articulo relativo a la contaminacin del aire como amenaza para los bosques de Europa.
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