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9 resultados encontrados para: AUTOR: Klepeis, Peter
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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.


2.
- Capítulo de libro con arbitraje
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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
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SIBE Campeche
51928-30 (Disponible)
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SIBE Chetumal
51928-20 (Disponible)
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SIBE San Cristóbal
ECO010018270 (Disponible)
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3.
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
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SIBE Campeche
ECO040002406 (Disponible)
Disponibles para prestamo: 1
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SIBE Chetumal
ECO030000902 (Disponible)
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SIBE San Cristóbal
ECO010000042 (Disponible)
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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


4.
- Capítulo de libro con arbitraje
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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
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SIBE Campeche
ECO040006388 (Disponible)
Disponibles para prestamo: 1
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SIBE Chetumal
51927-30 (Disponible)
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51927-20 (Disponible)
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5.
Artículo
Development policies and tropical deforestation in the southern Yucatán Peninsula: centralized and decentralized approaches
Klepeis, Peter ;
Clasificación: AR Y/333.75137 / K5
Contenido en: Land Degradation and Development Vol. 14, (2003) p. 541-561 ISSN: 1085-3278
Bibliotecas: Campeche , Chetumal
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ECO040000916 (Disponible)
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SIBE Chetumal
ECO030000403 (Disponible)
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Resumen en: Español |
Resumen en español

It is well established that for multiple biophysical contexts there are legacies of past government policies in present land conditions. Despite this recognition, however, investigation of ongoing tropical deforestation dynamics often de-emphasizes the past. The case of the southern Yucatán peninsula demonstrates the need for historical analysis in identifying key drivers of deforestation. The most important land-use changes in the region over the past 100 years are connected to shifts in national development policies. These shifts represent tensions between centralized and decentralized approaches to land management - as represented by the policies of Presidents Díaz (1876-1910) and Cárdenas (1934-40) - that persisted throughout the 20th century. The legacies of these reoccurring development strategies include depleted hardwood reserves, large areas of permanently cleared forest, a complicated system of land allocation, and long-standing tensions between economic, social welfare, and environmental conservation goals. These findings suggest that while centralized and decentralized approaches to development both focus on natural resource exploitation, the rates of deforestation tend to be faster, the patterns of forest clearing more pronounced, and land-use decision making less democratic under systems of centralized control. These conclusions hold implications for land-use decision making today. Copyright © 2003 John Wiley & Sons, Ltd.


6.
Artículo
Neoliberal policy and deforestation in Southeastern Mexico: an assessment of the PROCAMPO program
Klepeis, Peter ; Vance, Colin James (coaut.) ;
Clasificación: AR CA/333.75137 / K5
Contenido en: Economic Geography Vol. 79, no. 3 (2002), p. 221-240
Bibliotecas: Campeche , Chetumal
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SIBE Campeche
ECO040000279 (Disponible)
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ECO030004678 (Disponible)
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7.
Artículo
Integrated land history and global change science: the example of the Southern Yucatán Peninsular Region project
Klepeis, Peter ; Turner II, Billie Lee (coaut.) ;
Clasificación: AR Y/972.65 / K5
Contenido en: Land Use Policy No. 18 (2001), p. 27-39 ISSN: 0264-8377
Bibliotecas: Campeche
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SIBE Campeche
ECO040002050 (Disponible)
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8.
- Artículo con arbitraje
Modeling tropical deforestation in the southern Yucatán peninsular region: comparing survey and satellite data
Geoghegan, Jacqueline ; Cortina Villar, Héctor Sergio (coaut.) (1960-) ; Klepeis, Peter (coaut.) ; Macario Mendoza, Pedro A. (coaut.) ; Ogneva Himmelberger, Yelena A. (coaut.) ; Roy Chowdhury, Rinku (coaut.) ; Turner II, Billie Lee (coaut.) ; Vance, Colin (coaut.) ;
Clasificación: AR/333.75137 / M6
Contenido en: Agriculture, Ecosystems and Environment Vol. 85, no. 1-3 (June 2001), p. 25-46 ISSN: 0167-8809
Bibliotecas: Campeche , San Cristóbal
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SIBE Campeche
ECO040001672 (Disponible)
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ECO010005133 (Disponible)
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Resumen en: Inglés |
Resumen en inglés

This paper presents some initial modeling results from a large, interdisciplinary research project underway in the southern Yucatán peninsular region. The aims of the project are: to understand, through individual household surveywork, the behavioral and structural dynamics that influence land managers’ decisions to deforest and intensify land use; model these dynamics and link their outcomes directly to satellite imagery; model from the imagery itself; and, determine the robustness of modeling to and from the satellite imagery. Two complementary datasets, one from household survey data on agricultural practices including information on socio-economic factors and the second from satellite imagery linked with aggregate government census data, are used in two econometric modeling approaches. Both models test hypotheses concerning deforestation during different time periods in the recent past in the region. The first uses the satellite data, other spatial environmental variables, and aggregate socio-economic data (e.g., census data) in a discrete-choice (logit) model to estimate the probability that any particular pixel in the landscape will be deforested, as a function of explanatory variables. The second model uses the survey data in a cross-sectional regression (OLS) model to ask questions about the amount of deforestation associated with each individual farmer and to explain these choices as a function of individual socio-demographic, market, environmental, and geographic variables. In both cases, however, the choices of explanatory variables are informed by social science theory as to what are hypothesized to affect the deforestation decision (e.g., in a von Thünen model, accessibility is hypothesized to affect choice; in a Ricardian model, land quality; in a Chayanovian model, consumer–labor ratio).

The models ask different questions using different data, but several broad comparisons seem useful. While most variables are statistically significant in the discrete choice model, none of the location variables are statistically significant in the continuous model. Therefore, while location affects the overall probability of deforestation, it does not appear to explain the total amount of deforestation on a given location by an individual.


9.
Tesis
Deforesting the once deforested: land transformation in Southeastern México / Peter James Klepeis
Klepeis, Peter James (autor) ; Turner II, Billie Lee (chief instructor) ;
Worcester, Massachusetts, United States : Faculty Clark University, Department of Geography , 2000
Clasificación: Y/333.751370972 / K5
Bibliotecas: Campeche
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SIBE Campeche
ECO040005180 (Disponible) , ECO040005179 (Disponible) , ECO040002949 (Disponible)
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