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Articles 1 - 5 of 5
Full-Text Articles in Environmental Studies
Effects Of A Switchgrass Buffer Strip On Soil Microorganisms Near A Field Applied With Endosulfan, Cristina Clark-Cuadrado
Effects Of A Switchgrass Buffer Strip On Soil Microorganisms Near A Field Applied With Endosulfan, Cristina Clark-Cuadrado
FIU Electronic Theses and Dissertations
A field study to determine the effects of a switchgrass buffer strip (SBS) on soil microorganisms near a field applied with endosulfan was carried out. Soil samples were taken from a SBS and bare soil area downslope from a field applied with endosulfan at different distances, days, and two seasons (wet and dry). Soil samples were analyzed for endosulfan, soil fungi, and bacteria. Analysis of endosulfan concentrations was done by reversed-phase liquid chromatography. No endosulfan runoff was detected by this method. Analysis of soil fungi and bacteria was done by fungal and bacterial enumeration by plate count method on rose …
Agroecología: Promoviendo Una Transición Hacia La Sostenibilidad, Stephen R. Gliessman, Francisco J. Rosado-May, Carlos Guadarrama-Zugasti, Julie Jedlicka, Anais Cohn, Victor Ernesto Méndez, Roseann Cohen, Laura Trujillo, Christopher M. Bacon, Roberta Jaffe
Agroecología: Promoviendo Una Transición Hacia La Sostenibilidad, Stephen R. Gliessman, Francisco J. Rosado-May, Carlos Guadarrama-Zugasti, Julie Jedlicka, Anais Cohn, Victor Ernesto Méndez, Roseann Cohen, Laura Trujillo, Christopher M. Bacon, Roberta Jaffe
Environmental Studies and Sciences
En este artículo se define agroecología como la aplicación de los conceptos y prinicipios ecológicos al diseño y manejo de los sistemas alimentarios sostenibles. Se presentan los argumentos principales que sostienen la validez, importancia y pertinencia del enfoque agroecológico, no solo para entender los procesos involucrados en la producción de alimentos, sino para proponer alternativas que conduzcan a esos procesos para operar en sistemas sostenibles. El concepto clave, que guía el razonamiento metodológico y epistemológico en este an álisis, es el de sostenibilidad. Para alcanzar sostenibilidad la metodología agroecológica no solo se ancla en la Ecología, lo cual se describe …
Model Estimation Of Land-Use Effects On Water Levels Of Northern Prairie Wetlands, Richard A. Voldseth, W.Carter Johnson, Tagir Gilmanov, Glenn R. Guntenspergen, Bruce V. Millett
Model Estimation Of Land-Use Effects On Water Levels Of Northern Prairie Wetlands, Richard A. Voldseth, W.Carter Johnson, Tagir Gilmanov, Glenn R. Guntenspergen, Bruce V. Millett
Natural Resource Management Faculty Publications
Wetlands of the Prairie Pothole Region exist in a matrix of grassland dominated by intensive pastoral and cultivation agriculture. Recent conservation management has emphasized the conversion of cultivated farmland and degraded pastures to intact grassland to improve upland nesting habitat. The consequences of changes in land-use cover that alter watershed processes have not been evaluated relative to their effect on the water budgets and vegetation dynamics of associated wetlands. We simulated the effect of upland agricultural practices on the water budget and vegetation of a semipermanent prairie wetland by modifying a previously published mathematical model (WETSIM). Watershed cover/landuse practices were …
Multifunctional Rural Landscapes: Economic, Environmental, Policy, And Social Impacts Of Land Use Changes In Nebraska, Twyla M. Hansen, Charles A. Francis, J. Dixon Esseks, J. Allen Williams Jr.
Multifunctional Rural Landscapes: Economic, Environmental, Policy, And Social Impacts Of Land Use Changes In Nebraska, Twyla M. Hansen, Charles A. Francis, J. Dixon Esseks, J. Allen Williams Jr.
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
The conversion of farmland near cities to other human uses is a global trend that challenges our long-term capacity to provide food, fiber, and ecosystem services to a growing world population. If current trends continue in the United States, the population will reach 450 million by the year 2050. At the same time, an accelerating change in land use will reduce today’s two acres per person of farmland to less than one acre per person. This is scarcely enough to produce food for our domestic population, without any food available for export – even assuming advances in technology. We need …
A Community-Based Social Marketing Campaign To Green The Offices At Pacific University: Recycling, Paper Reduction, And Environmentally Preferable Purchasing, Elaine Janet Cole
A Community-Based Social Marketing Campaign To Green The Offices At Pacific University: Recycling, Paper Reduction, And Environmentally Preferable Purchasing, Elaine Janet Cole
Antioch University Full-Text Dissertations & Theses
This study describes a community-based social marketing (CBSM) research project to bring awareness and behavior change around paper reduction, recycling, and purchasing of environmentally preferred products (EPP) at a small liberal arts university in the Pacific Northwest. A university-wide green office campaign was designed and implemented over a semester. Components of the multiple methods research study were pre-post surveys, purchasing reports, a recycling study, and a waste audit. The results provide examples and insights into specific community-based social marketing tools that helped foster environmental behavior change. The paper also presents suggestions for future CBSM sustainability efforts at other universities. The …