Términos relacionados

8 resultados encontrados para: AUTOR: Keys, Eric
  • «
  • 1 de 1
  • »
1.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Synergistic vulnerabilities: climate variability and fire management policy increase farming challenges in southeastern Mexico
Monzón Alvarado, Claudia María ; Keys, Eric (coaut.) ;
Contenido en: Regional Environmental Change Vol. 17, no. 2 (February 2017), p. 489–500 ISSN: 1436-378X
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Agricultural fire for land preparation is central in the livelihoods of subsistence farmers practicing shifting cultivation. Achieving a good agricultural burn, one in which the biomass is thoroughly consumed within the chosen area, depends on specific weather conditions. Fire use decisions are also shaped by institutions that define the timing and rules for fire use but also constrain the alternatives and shape adaptive capacities. Global and regional climate changes interact with the institutional framing of fire management affecting local fire use and burn outcomes. These effects are documented and analyzed to suggest adaptations to existing governance systems. We examined subsistence farmers’ socio-ecological vulnerability in the Calakmul municipality, located in southeastern Mexico. Using interviews with farmers and government agents, as well as participatory mapping and observation of agricultural burns, we studied fire management knowledge, practices and burn outcomes. Our results describe a continuum of burn outcomes covering good agricultural burns, uncontrolled burns leading to wildfires and “malquemados” literally poorly burned areas. Malquemados represent unsuccessful combustion associated with excess moisture that results in scorched vegetation. We discuss how unexpected early rains trigger effects that cascade through space and the ecological, economic and cultural domains. We argue that fire management has been historically approached from a conservation standpoint yet agricultural fire use and wildfire prevention should also be addressed from a rural development perspective. This shift in fire management would lead to the proper inclusion of the entire array of burn outcomes in studies and policies addressing farmers’ vulnerability amplified by synergistic effects between climate variability and institutional change.


Resumen en: Inglés |
Resumen en inglés

Land system science axiomatically addresses social–environmental systems by integrating the dynamics of land uses (social) and land covers (environment), invariably including the use of remote sensing data and often, spatially explicit models of land change. This kind of research is illustrated through the Southern Yucatán Peninsular Region project (1997–2008) aimed at understanding, predicting, and projecting spatially explicit land change in a region with juxtaposed land uses-agriculture and a biosphere reserve. The successes of the project, its contributions to contemporary land system science, and the organizational mechanisms that fostered the research are identified as well as various corrections, which if applied, may have refined and extended the project's goals. Overall, the project demonstrates the kind of integrated research required to advance understanding of a social-environment system and the team-based methods used in the process.


Resumen en: Inglés |
Resumen en inglés

Land system science axiomatically addresses social– environmental systems by integrating the dynamics of land uses (social) and land covers (environment), invariably including the use of remote sensing data and often, spatially explicit models of land change. This kind of research is illustrated through the Southern Yucata´ n Peninsular Region project (1997–2008) aimed at understanding, predicting, and projecting spatially explicit land change in a region with juxtaposed land uses-agriculture and a biosphere reserve. The successes of the project, its contributions to contemporary land system science, and the organizational mechanisms that fostered the research are identified as well as various corrections, which if applied, may have refined and extended the project’s goals. Overall, the project demonstrates the kind of integrated research required to advance understanding of a social-environment system and the team-based methods used in the process.


4.
Artículo
PDF
Resumen en: Español | Inglés |
Resumen en español

En México, desde la revolución, el desarrollo agrícola para la subsistencia y el mercado ha sido una prioridad para diversos grupos, especialmente los agricultores. Durante la última década la política federal mexicana en relación a la agricultura ha cambiado de uno marcado de paternalismo hacia un modelo empresarial. Este cambio benefició a un grupo pequeño de agricultores, pero exponía la mayoría al riesgo de un fracaso económico. Por encima de los impactos en la economía doméstica, esas políticas impactaron en el uso del suelo y la cobertura de la tierra. Este estudio explora los dinámicos de la producción de chili y cómo ellos son influidos por los factores y políticas domésticos dentro el municipio de Calakmul, en Campeche, México. El chili jalapeño es el producto principal del mercado de Calakmul, desde hace poco en la frontera de desarrollo de México, pero ahora la ubicación de la reserva bioesférica más grande de México, y un paisaje en el cual las prioridades de conservación confrontan aquellas del desarrollo. Una integración de métodos cuantitativos y cualitativos permiten un mejor entendimiento de este importante y ampliando uso de suelo de la región.

Resumen en inglés

In Mexico, since the revolution of 1910, agricultural development for subsistence and market has been a priority of diverse stakeholder groups, particularly farmers. Within the last ten years, Mexican federal agricultural policy shifted from a paternalistic to an enterprise model. This shift resulted in benefits for a few farmers while placing most producers at risk of economic failure. In addition to the impacts on the household economy, these policies influence land use and land cover. This paper explores the dynamics of chili production and how these dynamics are influenced by household and policy factors in the municipality of Calakmul in Campeche, Mexico. Jalapeño chili is the foremost market crop in Calakmul, until recently a development frontier for Mexico, and now the site of the largest biosphere reserve in that country and a landscape where priorities for forest conservation meet those for agricultural development. An integration of qualitative and quantitative methods enables a more complete understanding of this important and expanding land use in the region.


5.
Artículo
Exploring market-based development: market intermediaries and farmers in Calakmul, Mexico
Keys, Eric (autor) ;
Disponible en línea
Contenido en: Geographical Review Vol. 95, no. 1 (Jan 2005), p. 24-46 ISSN: 1931-0846
PDF
Resumen en: Inglés |
Resumen en inglés

Market intermediaries play important roles in the development of tropical-forest frontiers but are often overlooked in the assessment of land-change dynamics. Consistent with research beyond land-change studies, intermediaries are found to be a pivotal element in land-use and land-cover change in southeastern Mexico. They have stimulated commercial chili cultivation in this development frontier, providing transportation and other services to smallholders who could otherwise not enter the chili market. This role comes at the cost of a near monopoly on chili marketing. The various roles played by these intermediaries, or coyotes, the means by which they operate, and the consequences for smallholders and land use are detailed for the Calakmul Municipality, Campeche, Mexico.


6.
- Capítulo de libro con arbitraje
*Solicítelo con su bibliotecario/a
The ejido household: the current agent of change
Vance, Colin James (autor) ; Klepeis, Peter (autor) ; Schmook, Birgit Inge (autora) ; Keys, Eric (autor) ;
Clasificación: AR/338.1097275 / E3
Contenido en: Integrated land-change science and tropical deforestation in the southern Yucatán: final frontiers / edited by B. L. Turner II, Jacqueline Geoghegan and David R. Foster Oxford, England, United Kingdom : Oxford University Press, 2004 páginas 171-187 ISBN:0-19-924530-4 :: 978-0-19-924530-7
Bibliotecas: Campeche , Chetumal , San Cristóbal
Cerrar
SIBE Campeche
51928-30 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Chetumal
51928-20 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
ECO010018270 (Disponible)
Disponibles para prestamo: 1
Nota: Solicítelo con su bibliotecario/a

7.
Libro
Integrated land-change science and tropical deforestation in the Southern Yucatán: final frontiers / edited by B. L. Turner II, Jacqueline Geoghegan and David R. Foster
Turner II, Billie Lee (editor) ; Geoghegan, Jacqueline (editora) ; Foster, David R. (editor) ;
Oxford, England, United Kingdom : Oxford University Press , 2004
Clasificación: Y/333.75137 / I5
Bibliotecas: Campeche , Chetumal , San Cristóbal
Cerrar
SIBE Campeche
ECO040002406 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Chetumal
ECO030000902 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
ECO010000042 (Disponible)
Disponibles para prestamo: 1
Índice | Resumen en: Inglés |
Resumen en inglés

This highly topical study of tropical deforestation in Mexico reports on the first phase of the Land-Cover and Land-Use Change in the Southern Yucatan Peninsular Region Project (LCLUC-SYPR): a large, multi-institutional, and team-based study designed to understand and project land changes in a development frontier that pits the rapidly growing needs of smallholder farmers to cut down forests for cultivation against federally sponsored initiatives committed to various international programmes of forest preservation and complementary economic programmes. The SYPR project is a response to inderdisciplinary defined research themes deemed critical to global environmental change and complementary international research agendas (e.g. environment and development, ecosystem assessment, biotic diversity). Pivotal among these agendas are those posed by the Land-Use/Cover Change (LUCC) effort of the International Geosphere-Biosphere Programme and the International Human Dimensions of Global Environmental Change Programme as it is linked through such US sponsors as the National Aeronautics and Space Administration (NASA) and the National Science Foundation (NSF). The themes (i.e. questions and subjects) posed by these programmes and organization are 'integrated' or 'synthesis' in kind, meaning that they rest within the intersection of formal disciplines and are intended to fit into a larger, systems framework about human-environment relationships and the structure and function of the biosphere. The editors of this volume, as most of its contributors, come from the disciplines of geography, ecology, and economics. The lead editor, the geographer B. L. Turner II, has spent most of his career in pursuit of understanding different aspects of tropical deforestation and agriculture.

Índice

1. Introduction Three Frontiers of the Southern Yucatan Peninsular Region and SYPR Project
I: Human-Environment Relationships, 1000 BC - AD 1900
2. The Long View: Human-Environment Relationships 1000 BC - AD 1900
3. Forest Extraction to Theme Parks: The Modern History of Land Change
II: Land-Cover Characteristics and Change
4. Forest Types and their Implications
5. Recovery of Nutrient Cycling and Ecosystem Properties following Swidden Cultivation: Regional and Stand-Level Constraints
6. Land Cover and Land Use: Classification and Change Analysis
III: Agents and Institutions of Land Change: Household Economy and Cultivation
7. Institutions, Organizations, and Policy Affecting Land Change: Complexity Within and Beyond the Ejido
8. The Ejido Household: The Current Agent of Change
9. Subsistence Sustained: Swidden or Milpa Cultivation
10. Jalapeno Pepper Cultivation: Emergent Commercial Land Use
11. The Semi-Market and Semi-Subsistence Household: The Evidence and Test of Smallholder Behavior
IV: Spatial Modeling of Land Change: Empirical Approaches in Data-Sparse Environments
12. Spatially Explicit, Statistical Land-Change Models in Data-Sparse Conditions
13. The SYPR Integrative Assessment Model: Complexity in Development
Retrospective: The Three Frontiers Revisited
Glossary and Acronyms
Index


8.
- Capítulo de libro con arbitraje
*Solicítelo con su bibliotecario/a
Subsistence sustained: swidden or milpa cultivation
Klepeis, Peter (autor) ; Vance, Colin James (autor) ; Keys, Eric (autor) ; Macario Mendoza, Pedro A. (autor) ; Turner II, Billie Lee (autor) ;
Clasificación: AR/633.15097264 / S9
Contenido en: Integrated land-change science and tropical deforestation in the southern Yucatán: final frontiers / edited by B. L. Turner II, Jacqueline Geoghegan and David R. Foster Oxford, England, United Kingdom : Oxford University Press, 2004 páginas 189-206 ISBN:0-19-924530-4 :: 978-0-19-924530-7
Bibliotecas: Campeche , Chetumal , San Cristóbal
Cerrar
SIBE Campeche
ECO040006388 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Chetumal
51927-30 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
51927-20 (Disponible)
Disponibles para prestamo: 1
Nota: Solicítelo con su bibliotecario/a