Browsing by Author "Universidad de la Cordillera"
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- Análisis de evaluaciones participativas y socialización en comunidades de Ancoraimes y UmalaYana, O.; Yucra, E.; Romero, A.; Contreras, A. (La Paz, Bolivia: Universidad de La Cordillera, 2009)The institution leading the production is Universidad de La Cordillera. The PI contact is Dr. Elizabeth Jimenez. Can also contact Corinne Valdivia PI LTRA 4 at University of Missouri Columbia.
- Changes in soil organic C and N due to climate change and socioeconomic factors in potato-based cropping systems in the Bolivian HighlandsMotavalli, Peter P.; Aguilera, Javier; Valdivia, Corinne; García, Magali; Jiménez, Elizabeth; Cusicanqui, Jorge; Miranda, R. (Madison, WI: American Society of Agronomy, 2007)Global climate change and changes in migration and market conditions in the Bolivian Highlands (Altiplano) have reduced the use of traditional cropping practices and increased the risk of crop failure and food insecurity. The objectives of this research were to survey indigenous farming communities in the northern Altiplano of Bolivia to determine the actual and perceived changes in cropping practices in potato-based cropping systems and to assess the effects of these changes on soil total organic carbon (C) and total nitrogen (N) levels and the availability and composition of soil amendments. Village-level surveys were conducted using questionnaires and participatory techniques in 2006-2007 in four communities that were selected to represent communities situated at relatively low and high altitudes in the region. Samples of soil amendments, primarily animal manures, were obtained from each community to determine the range of composition of the materials. In addition, soil samples were collected to a 20 cm depth from agricultural fields that represented different stages of the common agricultural rotation practiced in the region and that had different lengths of fallow periods. A hypothesis of this research is that climate change and socioeconomic factors have caused lower soil total organic C and total N levels due to increased intensity of land use and the amount and type of tillage, and a decrease in the length of the fallow period that was traditionally used to restore soil fertility. The results of the analysis of the soil amendments and soils will be compared to community perceptions of changes in soil quality and management and any differences among the communities will be discussed. The findings of this research will assist in determining if appropriate management practices need to be identified to improve soil organic matter in order to possibly mitigate negative effects of climate change in the area.
- Cuestionario de estrategias de vida, capitales, y prácticas CICLO 2005-2006: Proceso de muestreo y entrevista: Apuntes para el encuestador/aUniversidad de la Cordillera; Universidad Mayor de San Andrés; PROINPA; University of Missouri Columbia (2006)Guidelines for person to person interviews using a close ended survey instrument, used in the Bolivian research.
- Cuestionario de estrategias de vida, capitales, y prácticas: CICLO 2005-2006Universidad de la Cordillera; Universidad Mayor de San Andrés; PROINPA; University of Missouri Columbia (2006)A full questionnaire of livelihood strategies, capitals and practices.
- Encuesta de línea base estrategias de vida, capitales y prácticas: Municipios de Umala y Ancoraimes, Departamento de La Paz, Bolivia, ciclo 2005-2006Valdivia, Corinne (2007)A household survey, implemented in 9 communities of two regions of the Bolivian Altiplano, Umala and Ancoraimes, two different ecosystems, was completed in October of 2006. In this seminar the major findings comparing both regions was presented to the research team. It includes the capitals, production systems, and demographic household characteristics, as well as the procedures followed.
- Memoria de socializacion de resultados del impacto del clima y de mercados en comunidades del Municipio de UmalaYana, O.; Romero, A. (La Paz, Bolivia: Universidad de La Cordillera, 2008)The institution leading the production is Universidad de La Cordillera. The PI contact is Dr. Elizabeth Jimenez. Can also contact Corinne Valdivia PI LTRA 4 at University of Missouri Columbia.
- Memoria de socialización de resultados impacto del clima y de mercados en comunidades del Municipio de AncoraimesYana, O.; Romero, A. (La Paz, Bolivia: Universidad de La Cordillera, 2008)The institution leading the production is Universidad de La Cordillera. The PI contact is Dr. Elizabeth Jimenez.
- Proyecto SANREM - MU websiteUniversidad de la Cordillera (La Paz, Bolivia: SANREM CRSP LTR-4, 2007)A website managed by the University of Cordillera for SANREM's Long-Term Research Project 4. This research project is based at the University of Missouri, and focuses on sustainable agriculture and natural resource management in Bolivia and Peru.