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34 resultados encontrados para: AUTOR: Masera Cerutti, Omar Raúl
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Sustainable rural development in Latin America: building from the bottom up
Altieri, Miguel Ángel ; Masera Cerutti, Omar Raúl (coaut.) ;
Clasificación: AV/00035
Contenido en: Ecological Economics Vol. 7 (1993), p. 93-121 ISSN: 0921-8009
Bibliotecas: Campeche
SIBE Campeche
ECO040001787 (Disponible)
Disponibles para prestamo: 1

- Artículo con arbitraje
Astier Calderón, Marta ; García Barrios, Luis Enrique (coaut.) ; González Esquivel, Carlos Ernesto (coaut.) ; Larrondo Posadas, Lourdes Georgina (coaut.) ; López Ridaura, Santiago (coaut.) ; Masera Cerutti, Omar Raúl (coaut.) ;
Contenido en: Agricultura Familiar. Pesquisa, Formação e Desenvolvimento Vol. 11, no. 01 2015 (jun-jun. 2017), p. 9-16 ISSN: 1414-0810

- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

Sustainability assessment oriented to improve current systems and practices is urgently needed, particularly in the context of small farmer natural resource management systems (NRMS). Unfortunately, social-ecological systems (SES) theory, sustainability evaluation frameworks, and assessment methods are still foreign not only to farmers but to many researchers, students, NGOs, policy makers/operators, and other interested groups. In this paper we examine the main achievements and challenges of the MESMIS Program (Spanish acronym for Indicator-based Sustainability Assessment Framework), a 15-year ongoing effort with impact in 60 case studies and 20 undergraduate and graduate programs mainly in Ibero-America that is attempting to cope with the stated challenges. The MESMIS experience shows that it is possible to conduct sustainability assessments in the context of small farmers through a long-term, participatory, interdisciplinary, and multi-institutional approach that integrates a solid theoretical background, a field-tested operational framework, learning tools specifically devised to facilitate the understanding of sustainability as a multidimensional and dynamic concept, and a growing set of case studies to apply to and get feedback from users.

Specifically, through the dissemination of the MESMIS assessment framework in a large set of case studies in a contrasting set of social-ecological contexts, we have been able to: (a) characterize the NRMS, their subsystems, and their main interactions; (b) link attributes, i.e., general systemic properties, with sustainability indicators to assess critical socioeconomic and environmental aspects of the NRMS; (c) integrate indicators through multicriteria tools and to expose the multidimensional aspects of sustainability; (d) propose an initial multiscale assessment to articulate processes and actors at different spatial scales; (e) develop multimedia learning tools, i.e., Interactive-MESMIS, to help users understand dynamic concepts, trade-offs, and counter-intuitive behavior; and (f) promote participatory processes through role-playing games and agent-based simulation models. Key challenges are related to the need to conduct long-term longitudinal studies that fully capture system dynamic properties while at the same time actively involving relevant stakeholders through creative and lasting participative processes. We outline an improved assessment framework that should help move the program in this direction.

*Solicítelo con su bibliotecario/a
Evaluación de sustentabilidad. Un enfoque dinámico y multidimensional / Marta Astier, Omar R. Masera, Yankuic Galván-Miyoshi, coordinadores
Astier Calderón, Marta (coord.) ; Masera Cerutti, Omar Raúl (coord.) ; Galván Miyoshi, Yankuic Masatzugo (coord.) ;
Valencia, España : Sociedad Española de Agricultura Ecológica :: Universidad Nacional Autónoma de México. Centro de Investigaciones en Geografía Ambiental :: El Colegio de la Frontera Sur :: Universidad Nacional Autónoma de México. Centro de Investigaciones en Ecosistemas :: Grupo Interdisciplinario de Tecnología Rural Apropiada :: Mundi-Prensa México , 2008
Clasificación: EE/333.715 / E9
Nota: Solicítelo con su bibliotecario/a
Resumen en español

El libro “Evaluación de sustentabilidad. Un enfoque dinámico y multidimensional” es el cuarto volumen de la colección Evaluación de Sustentabilidad, mediante la cual se busca poner al alcance de un conjunto amplio de lectores materiales de referencia para profundizar en el concepto de sustentabilidad, su evaluación y su puesta en práctica para el fortalecimiento y rediseño de sistemas de manejo de recursos naturales. Este volumen es una lectura esencial para los interesados en el tema de sustentabilidad y su aplicación a los sistemas de manejo de recursos naturales. Presenta la oportunidad poco común de acceder tanto a una revisión detallada de los principales temas de frontera en las evaluaciones de sustentabilidad como de aprender de la experiencia práctica de 10 años de aplicación del marco MESMIS (Marco de Evaluación de Sistemas de Manejo de Recursos Naturales incorporando Indicadores de Sustentabilidad) en más de 40 estudios de caso a lo largo de Iberoamérica. Como complemento al texto, y dando respuesta a la carencia crítica de materiales didácticos en la literatura sobre evaluaciones de sustentabilidad, este volumen incluye también un CD, “MESMIS Interactivo”, con programas amistosos de simulación interactiva que ayudan a entender la naturaleza dinámica del concepto de sustentabilidad y la compleja interdependencia entre sus dimensiones social, económica y ambiental.

- Capítulo de libro con arbitraje

Resumen en: Inglés |
Resumen en inglés

Although forest conservation activities, particularly in the tropics, offer significant potential for mitigating carbon (C) emissions, these types of activities have faced obstacles in the policy arena caused by the difficulty in determining key elements of the project cycle, particularly the baseline. A baseline for forest conservation has two main components: the projected land-use change and the corresponding carbon stocks in applicable pools in vegetation and soil, with land-use change being the most difficult to address analytically. In this paper we focus on developing and comparing three models, ranging from relatively simple extrapolations of past trends in land use based on simple drivers such as population growth to more complex extrapolations of past trends using spatially explicit models of land-use change driven by biophysical and socioeconomic factors.

The three models used for making baseline projections of tropical deforestation at the regional scale are: the Forest Area Change (FAC) model, the Land Use and Carbon Sequestration (LUCS) model, and the Geographical Modeling (GEOMOD) model. The models were used to project deforestation in six tropical regions that featured different ecological and socioeconomic conditions, population dynamics, and uses of the land: (1) northern Belize; (2) Santa Cruz State, Bolivia; (3) Parana´ State, Brazil; (4) Campeche, Mexico; (5) Chiapas, Mexico; and (6) Michoaca´n, Mexico.A comparison of all model outputs across all six regions shows that each model produced quite different deforestation baselines. In general, the simplest FAC model, applied at the national administrative-unit scale, projected the highest amount of forest loss (four out of six regions) and the LUCS model the least amount of loss (four out of five regions).

Based on simulations of GEOMOD, we found that readily observable physical and biological factors as well as distance to areas of past disturbance were each about twice as important as either sociological/ demographic or economic/infrastructure factors (less observable) in explaining empirical land-use patterns.We propose from the lessons learned, a methodology comprised of three main steps and six tasks can be used to begin developing credible baselines. We also propose that the baselines be projected over a 10-year period because, although projections beyond 10 years are feasible, they are likely to be unrealistic for policy purposes. In the first step, an historic land-use change and deforestation estimate is made by determining the analytic domain (size of the region relative to the size of proposed project), obtaining historic data, analyzing candidate baseline drivers, and identifying three to four major drivers. In the second step, a baseline of where deforestation is likely to occur–a potential land-use change (PLUC) map—is produced using a spatial model such as GEOMOD that uses the key drivers from step one.

Then rates of deforestation are projected over a 10-year baseline period based on one of the three models. Using the PLUC maps, projected rates of deforestation, and carbon stock estimates, baseline projections are developed that can be used for project GHG accounting and crediting purposes: The final step proposes that, at agreed interval (e.g., about 10 years), the baseline assumptions about baseline drivers be re-assessed. This step reviews the viability of the 10-year baseline in light of changes in one or more key baseline drivers (e.g., new roads, new communities, new protected area, etc.). The potential land-use change map and estimates of rates of deforestation could be re-done at the agreed interval, allowing the deforestation rates and changes in spatial drivers to be incorporated into a defense of the existing baseline, or the derivation of a new baseline projection.

Greenhouse gas emissions between 1993 and 2002 from land-use change and forestry in Mexico
De Jong, Bernardus Hendricus Jozeph ; Carlos, Carlos (coaut.) ; Masera Cerutti, Omar Raúl (coaut.) ; Olguín Álvarez, Marcela Itzel (coaut.) ;
Contenido en: Forest Ecology and Management Vol. 260, no. 10 (October 2010), p. 1689-1701 ISSN: 0378-1127
Resumen en: Inglés |
Resumen en inglés

In this paper we present the Mexican inventory of greenhouse gas (GHG) emissions from the land-use sector. It involved integration of forest inventory, land-use and soil data in a GIS to estimate the net flux of GHG between 1993 and 2002. The net GHG flux of 86.9 (±34.4%) Tg CO2 y−1 resulted from the balance of emissions of 64.5 (±12%) Tg CO2 y−1 from biomass loss, 4.9 (±259%) Tg CO2 y−1 from managed forests, and 30.3 (±106%) Tg CO2 y−1 from mineral soils, and the removals of 12.9 (±36%) Tg CO2 y−1 in abandoned lands. Main sources of uncertainty include lack of integrated soil and biomass data and the impact of the various management practices on biomass. Key factors are identified to improve GHG inventories and to reduce uncertainty.

Greenhouse gas mitigation potential of combining forest management and bioenergy substitution: a case study from Central Highlands of Michoacan, Mexico
De Jong, Bernardus Hendricus Jozeph (coaut.) ; Masera Cerutti, Omar Raúl (coaut.) ; Olguín, Marcela (coaut.) ; Martínez, Rene (coaut.) ;
Contenido en: Forest Ecology and Management Vol. 242, no. 2-3 (April 2007), p. 398–411 ISSN: 0378-1127
Resumen en: Inglés |
Resumen en inglés

Key to climate change abatement strategies is the understanding of the comparative carbon mitigation implications of management of native forests oriented to different end-uses such as conservation, conventional management, or integrated management that includes bioenergy. In Mexico 95% of total logging is conducted in native forests, and 80% of it in pine–oak forests. In this paper we compare the carbon mitigation dynamics of mixed native pine–oak forests in Central Mexico under current management – used as a reference scenario – with two alternative scenarios: (a) oak conservation and (b) oak conservation + bioenergy. To estimate the carbon fluxes for each scenario and each forest type we used the CO2FIX V3.1 model, a user-friendly tool designed to calculate all carbon fluxes in forest stands, forest-derived products and bioenergy technologies based on forest slash and industrial residues. The CO2FIX model applies a cohort-type approach to estimate carbon fluxes in mixed or uneven-aged forests where species groups or age cohorts typically show differences in growth, biomass allocation, intra and inter-cohort competition, and mortality.

The product module tracks the carbon in products derived from the forests until the decomposition is complete, whereas the bioenergy module compares total greenhouse gas dynamics of reference and alternative bioenergy technologies, applying IPCC guidelines to estimate the carbon equivalence of the various greenhouse gases. We compare the outcome of the three scenarios in a managed community forest of about 11,000 ha in Michoacan, Central Mexico. The carbon mitigation potential after 20 years varied between 8.2 and 19.3 t C/ha for the oak conservation scenario and between 21.6 and 42.9 t C/ha for the oak conservation–bioenergy scenario. The bioenergy scenario results in a continuous stream of about 1.36 t C/ha of carbon benefits per year, whereas the oak conservation scenario will stop accumulating carbon after 40 years, compared to current forest management and energy generation.

*En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-San Cristóbal
Estufa Patsari: una alternativa para conservar los bosques y disminuir las enfermedades respiratorias: manual del constructor / Rodolfo Díaz, Rubén Gabriel, Odilia Molina, Santiago Marcos, Omar Masera
Díaz, Rodolfo (ed.) ; Rubén Gabriel (coed.) ; Molina, Odilia (coed.) ; Marcos, Santiago (coed.) ; Masera Cerutti, Omar Raúl (coed.) ;
Pátzcuaro, Michoacán, México : Grupo Interdisciplinario de Tecnología Rural Apropiada, A. C. GIRA :: Universidad Nacional Autónoma de México, Centro de Investigaciones en Ecosistemas CIECO , 2003
Bibliotecas: San Cristóbal
SIBE San Cristóbal
B5435 (Para consulta)
Disponibles para prestamo: 0
Nota: En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-San Cristóbal

Estufa Patsari: una alternativa para conservar los bosques y disminuir las enfermedades respiratorias : manual del constructor / Rodolfo Díaz, Rubén Gabriel, Odilia Molina, Santiago Marcos, Omar Masera, (editores)
Díaz, Rodolfo (ed.) ; Rubén Gabriel (coed.) ; Molina, Odilia (coed.) ; Marcos, Santiago (coed.) ; Masera Cerutti, Omar Raúl (coed.) ;
Pátzcuaro, Michoacán, México : Grupo Interdisciplinario de Tecnología Rural Apropiada :: Universidad Nacional Autónoma de México. Centro de Investigaciones en Ecosistemas , 2003
Clasificación: F/697.22 / E8
Bibliotecas: Villahermosa
SIBE Villahermosa
ECO050003883 (Disponible) , ECO050002406 (Disponible)
Disponibles para prestamo: 2