399 10 20655 https://www.socictopen.socict.org/files/original/8eee3065a26d80d479793510ce514f57.pdf 6d2421fc1b7eb9ca07cecab55cab65e3 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource En la frontera de la investigación en energía Creator An entity primarily responsible for making the resource Juan Antonio Rubio. Description An account of the resource El debate sobre la energía se centra en el dilema de cómo atender las necesidades del creciente consumo, garantizando los recursos, al tiempo que se minimiza el impacto social de la generación. En consecuencia el diseño de un plan energético ha de tener en cuenta los siguientes aspectos: 1) asegurar el suministro, 2) reducir la dependencia exterior, 3) diversificar las fuentes energéticas y 4) evitar el cambio climático, así como las causas del rechazo social a otras fuentes energéticas masivas como la nuclear. En este contexto la ciencia y la tecnología son herramientas fundamentales para contribuir a un desarrollo sostenible, conocido y respaldado por los ciudadanos. Date A point or period of time associated with an event in the lifecycle of the resource 2006 Source A related resource from which the described resource is derived Nucleus Publisher An entity responsible for making the resource available Taylor & Francis Group Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Medical physics. Medical radiology. Nuclear medicine, Nuclear engineering. Atomic power Relation A related resource <a href="http://nucleus.cubaenergia.cu/index.php/nucleus/article/view/476" target="_blank" rel="noreferrer noopener">http://nucleus.cubaenergia.cu/index.php/nucleus/article/view/476</a> https://www.socictopen.socict.org/files/original/56b9286bf4fd9bf97f89fa6ae0a5740f.pdf 08b1e779e6420e2f83b3c58eb8646d5a Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Emisión de metano entérico por rumiantes y su contribución al calentamiento global y al cambio climático. Revisión Creator An entity primarily responsible for making the resource Jorge Armando Bonilla Cárdenas, Clemente Lemus Flores Description An account of the resource La producción de metano (CH4) por los rumiantes se deriva de manera natural del proceso digestivo en estos, pero constituye una pérdida de energía y contribuye a las emisiones de gases de efecto invernadero (GEI), por lo que ha aumentado el número de investigaciones a fin de reducir la metanogénesis ruminal. Esta última está influenciada por varios factores, entre los que destacan: consumo de alimento, composición y digestibilidad de la dieta y procesamiento previo del alimento. Entre las estrategias para mitigar las emisiones de CH4 que se han propuesto, la manipulación dietética nutricional parece ser la de mayor potencial, simplicidad y factibilidad. En aquellos países que han estimado su inventario de GEI, la cantidad de metano es importante y en Nueva Zelanda, por ejemplo, se percibe como urgente la necesidad de que los ganaderos tengan acceso a tecnologías que les permitan reducir las emisiones de GEI de una manera segura y económicamente efectiva. En México se han encontrado diferencias significativas entre los factores propuestos por distintas fuentes, lo que sugiere desarrollar más estudios en las diferentes condiciones climáticas del país. Para desarrollar estrategias para mitigar las emisiones de CH4 por el ganado, debe ser posible cuantificarlas en una amplia gama de circunstancias, por lo que existen varios métodos tanto para estimarlas como para medirlas. El objetivo de esta revisión es compilar y difundir información sobre la emisión de CH4 por los rumiantes, sus posibles efectos en el calentamiento y en el cambio climático global, así como las alternativas existentes para su mitigación. Date A point or period of time associated with an event in the lifecycle of the resource 2012 Source A related resource from which the described resource is derived Revista Mexicana de Ciencias Pecuarias Publisher An entity responsible for making the resource available Instituto Nacional del Investigaciones Forestales, Agrícolas y Pecuarias Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Veterinary medicine, Animal culture Relation A related resource <a href="http://www.redalyc.org/articulo.oa?id=265624467007" target="_blank" rel="noreferrer noopener">http://www.redalyc.org/articulo.oa?id=265624467007</a> https://www.socictopen.socict.org/files/original/fc49fd653d2e776b6c95c169ce53948d.pdf 6716024b173139f6ce73febe66f47397 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Multicriteria spatial analysis applied to identifying ecosystem services in mixed-use river catchment areas in south central Chile Creator An entity primarily responsible for making the resource Carlos Esse, Rodrigo Santander-Massa, Francisco Encina-Montoya, Patricio De los Ríos, David Fonseca, Pablo Saavedra Description An account of the resource Abstract Background The flow of goods and services occurring in catchment areas allows the production of a series of ecosystem services. These have a direct impact on the inhabitants of the territory, who in turn recognise and value ecosystems (social value) as a function of the benefits which they generate. This has a direct impact on public policies that contribute to the development of local economies. The present study therefore sought to identify and recognize the social value of the various ecosystem services provided by a mixed-use catchment area in which different productive activities are concentrated. This study examined the social value of ecosystem services and offers qualitative or quantitative, non-monetary estimates of the relative importance of different benefits for human society derived from the functioning of ecosystems (Laterra et al, Valoración de Servicios Ecosistémicos, Conceptos, herramientas y aplicaciones para el ordenamiento territorial, 2011). The methodology involved the participation of leading actors in the territory, and a panel of experts who defined criteria and weighting which were applied to a multicriteria spatial model. They assigned ordinal scale to the territory representing levels of appreciation based on the various ecosystem services in the ecological, productive, landscape and cultural dimensions. The results showed that the inhabitants of the territory recognise the ecosystem benefit of areas covered by native forest, in particular the species Nothofagus dombeyi (Mirb.) Oerst., in contrast to areas used for farm production. The functioning of the ecosystem is recognised, and particularly its contribution to regulating water flows and to water production and quality. Results The study results showed that areas covered with secondary forest of N. dombeyi provide a variety of ecosystem functions which support the creation of ecosystem services to the population, especially in riparian areas throughout the basin where they are important for water production and quality. ES ponderations for provision, regulation and cultural showed that the native forest and riparian units (HEU 1 and HEU 6) as a very important group in relation to the ES because there are recognized by the local society (P Date A point or period of time associated with an event in the lifecycle of the resource 2019 Subject The topic of the resource Coihue, Sub-catchment areas, Water quality, goods and services, riparian areas Identifier An unambiguous reference to the resource within a given context 10.1186/s40663-019-0183-1 Source A related resource from which the described resource is derived Forest Ecosystems Publisher An entity responsible for making the resource available SpringerOpen Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Ecology Relation A related resource <a href="http://link.springer.com/article/10.1186/s40663-019-0183-1" target="_blank" rel="noreferrer noopener">http://link.springer.com/article/10.1186/s40663-019-0183-1</a> https://www.socictopen.socict.org/files/original/0a964a3a704d46a39281ddc435c1c137.pdf 165f9a62ce2426147a02bbcd002092f3 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Cambio Climático, Desarrollo Sostenible y Capitalismo Creator An entity primarily responsible for making the resource Gonzalo Vitón García Description An account of the resource Review-essay de: • KLEIN, Naomi, Esto lo cambia todo. El capitalismo contra el clima, Ed. Paidós, Barcelona, 2015, pp. 703. • SACHS, Jeffrey, La era del desarrollo sostenible, Ed. Deusto Grupo Planeta, Barcelona, 2015, pp. 604. Date A point or period of time associated with an event in the lifecycle of the resource 2017 Subject The topic of the resource Cambio climático, capitalismo, desarrollo sostenible Source A related resource from which the described resource is derived Relaciones Internacionales Publisher An entity responsible for making the resource available Universidad Autónoma de Madrid. Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Political science, International relations Relation A related resource <a href="https://revistas.uam.es/relacionesinternacionales/article/view/7228" target="_blank" rel="noreferrer noopener">https://revistas.uam.es/relacionesinternacionales/article/view/7228</a> https://www.socictopen.socict.org/files/original/e06c533e19fd04493e37c31a7cdf0c8b.pdf 025a1882da84042db809d39621d7402c Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource LAS MONARQUÍAS DEL CONSEJO DE COOPERACIÓN DEL GOLFO (CCG) Y EL CAMBIO CLIMÁTICO Creator An entity primarily responsible for making the resource Ornela Fabani Description An account of the resource Las monarquías del CCG se encuentran entre los países con mayores reservas de hidrocarburos a nivel internacional. En consecuencia poseen matrices económicas y productivas fuertemente dependientes de los mismos. El objetivo del siguiente trabajo es analizar cómo se posicionan los Estados parte del bloque frente al cambio climático. Date A point or period of time associated with an event in the lifecycle of the resource 2013 Subject The topic of the resource Cambio climático, consejo de cooperación del golfo, hidrocarburos Identifier An unambiguous reference to the resource within a given context 10.22456/2178-8839.40660 Source A related resource from which the described resource is derived Revista Conjuntura Austral Publisher An entity responsible for making the resource available Graduate Programme in International Strategic Studies (PPGEEI) Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant International relations Relation A related resource <a href="https://seer.ufrgs.br/ConjunturaAustral/article/view/40660" target="_blank" rel="noreferrer noopener">https://seer.ufrgs.br/ConjunturaAustral/article/view/40660</a> https://www.socictopen.socict.org/files/original/352643c806b6fab1b7b12a266fdc1091.pdf def2249108a631285e3cd9fa16da2e80 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Factors controlling plankton community production, export flux, and particulate matter stoichiometry in the coastal upwelling system off Peru Creator An entity primarily responsible for making the resource P. Grasse, J. Aristegui, J. Meyer, U. Riebesell, L. T. Bach, A. J. Paul, T. Boxhammer, E. von der Esch, M. Graco, K. G. Schulz, E. Achterberg, P. Aguayo, P. Ayón, I. Baños, A. Bernales, A. S. Boegeholz, F. Chavez, G. Chavez, S.-M. Chen, S.-M. Chen, K. Doering, K. Doering, A. Filella, M. Fischer, P. Grasse, M. Haunost, J. Hennke, N. Hernández-Hernández, M. Hopwood, M. Igarza, V. Kalter, V. Kalter, L. Kittu, P. Kohnert, J. Ledesma, C. Lieberum, S. Lischka, C. Löscher, A. Ludwig, U. Mendoza, F. Minutolo, J. Ortiz Cortes, J. Piiparinen, C. Sforna, K. Spilling, K. Spilling, S. Sanchez, C. Spisla, M. Sswat, M. Zavala Moreira Description An account of the resource Eastern boundary upwelling systems (EBUS) are among the most productive marine ecosystems on Earth. The production of organic material is fueled by upwelling of nutrient-rich deep waters and high incident light at the sea surface. However, biotic and abiotic factors can modify surface production and related biogeochemical processes. Determining these factors is important because EBUS are considered hotspots of climate change, and reliable predictions of their future functioning requires understanding of the mechanisms driving the biogeochemical cycles therein. In this field experiment, we used in situ mesocosms as tools to improve our mechanistic understanding of processes controlling organic matter cycling in the coastal Peruvian upwelling system. Eight mesocosms, each with a volume of ∼55 m3, were deployed for 50 d ∼6 km off Callao (12∘ S) during austral summer 2017, coinciding with a coastal El Niño phase. After mesocosm deployment, we collected subsurface waters at two different locations in the regional oxygen minimum zone (OMZ) and injected these into four mesocosms (mixing ratio ≈1.5 : 1 mesocosm: OMZ water). The focus of this paper is on temporal developments of organic matter production, export, and stoichiometry in the individual mesocosms. The mesocosm phytoplankton communities were initially dominated by diatoms but shifted towards a pronounced dominance of the mixotrophic dinoflagellate (Akashiwo sanguinea) when inorganic nitrogen was exhausted in surface layers. The community shift coincided with a short-term increase in production during the A. sanguinea bloom, which left a pronounced imprint on organic matter C : N : P stoichiometry. However, C, N, and P export fluxes did not increase because A. sanguinea persisted in the water column and did not sink out during the experiment. Accordingly, export fluxes during the study were decoupled from surface production and sustained by the remaining plankton community. Overall, biogeochemical pools and fluxes were surprisingly constant for most of the experiment. We explain this constancy by light limitation through self-shading by phytoplankton and by inorganic nitrogen limitation which constrained phytoplankton growth. Thus, gain and loss processes remained balanced and there were few opportunities for blooms, which represents an event where the system becomes unbalanced. Overall, our mesocosm study revealed some key links between ecological and biogeochemical processes for one of the most economically important regions in the oceans. Date A point or period of time associated with an event in the lifecycle of the resource 2020 Identifier An unambiguous reference to the resource within a given context 10.5194/bg-17-4831-2020 Source A related resource from which the described resource is derived Biogeosciences Publisher An entity responsible for making the resource available Copernicus Publications Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Geology, Ecology, Life Relation A related resource <a href="https://bg.copernicus.org/articles/17/4831/2020/bg-17-4831-2020.pdf" target="_blank" rel="noreferrer noopener">https://bg.copernicus.org/articles/17/4831/2020/bg-17-4831-2020.pdf</a> https://www.socictopen.socict.org/files/original/3f355be0cf2feb6643a52a2d6ad4aa08.pdf 125198ad2c009904016ef6c5038132b5 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Algunas afecciones del cambio climático en áreas turísticas insulares. Cuba como caso de estudio Creator An entity primarily responsible for making the resource Ana M. Luque-Gil, José Damián Ruiz Sinoga Description An account of the resource Las áreas turísticas pueden ser especialmente sensibles a las consecuencias planteadas en los distintos escenarios de cambio climático analizados por el IPCC. Este artículo esboza algunos de estos problemas y desafíos en un área cuya principal actividad económica se deriva del turismo, el Caribe, vinculado a condiciones climáticas y ambientales. Se va a comprobar si los cambios en la variable pluviométrica vienen determinados por el cambio climático y de qué forma dichos procesos están afectando a la actividad turística en un destino caribeño en concreto, la isla de Cuba. Date A point or period of time associated with an event in the lifecycle of the resource 2014 Source A related resource from which the described resource is derived Cuadernos de Turismo Publisher An entity responsible for making the resource available Universidad de Murcia Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Geography. Anthropology. Recreation, Recreation. Leisure Relation A related resource <a href="http://www.redalyc.org/articulo.oa?id=39831596007" target="_blank" rel="noreferrer noopener">http://www.redalyc.org/articulo.oa?id=39831596007</a> https://www.socictopen.socict.org/files/original/bf547316dcc44a8827068571d6952d23.pdf bfd3af920a3814fa7df68744de5863f7 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Quintas Jornadas de Jóvenes Americanistas: «Nuevos acercamientos de los desafíos ambientales: las ciencias sociales frente a la adaptación a cambios climáticos. Perspectivas transdisciplinarias, formaciones y diálogos metodológicos» Creator An entity primarily responsible for making the resource Jérémy Robert Date A point or period of time associated with an event in the lifecycle of the resource 2014 Identifier An unambiguous reference to the resource within a given context 10.4000/bifea.5306 Source A related resource from which the described resource is derived Bulletin de l'Institut Français d'Études Andines Publisher An entity responsible for making the resource available Institut Français d'Études Andines Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Social sciences (General), Latin America. Spanish America Relation A related resource <a href="http://journals.openedition.org/bifea/5306" target="_blank" rel="noreferrer noopener">http://journals.openedition.org/bifea/5306</a> https://www.socictopen.socict.org/files/original/4e23038c171e5035dd91d9110bbc35d9.pdf 1c5dfa001f0c35654667ba19853edce0 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Biomasa residual vegetal: tecnologías de transformación y estado actual Creator An entity primarily responsible for making the resource Pedro Elías Patiño Martínez Description An account of the resource La biomasa residual vegetal es una alternativa para la producción de energía a nivel mundial. La conversión de los residuos vegetales en alguna forma energética requiere la aplicación de tecnologías que estén acorde a lo expresado en el numeral IV, artículo 2 del Protocolo de Kyoto de la convención marco de las Naciones Unidas sobre cambio climático (1998) y normativas específicas de cada país o región. Las tecnologías que se le pueden aplicar a los residuos vegetales son bien conocidas a nivel mundial, dentro de estas se incluye: la combustión que permite generar un combustible denominado bio-oil, la gasificación que genera principalmente dióxido de carbono y amoniaco, la pirolisis que genera un gas combustible, y procesos biológicos (fermentación y digestión) que generan bioetanol y biogás. Actualmente en España, Estados Unidos, Brasil y Alemania, entre otros, se vienen desarrollando políticas con el fin de incentivar la implementación de plantas de biomasa. En Colombia la transformación de la biomasa residual vegetal hasta ahora se encuentra en fase de experimentación en laboratorios de Investigación científica principalmente en instituciones de educación superior. Date A point or period of time associated with an event in the lifecycle of the resource 2014 Subject The topic of the resource Protocolo de Kioto, biodiesel, biomasa, carbono, combustion, energia Identifier An unambiguous reference to the resource within a given context 10.15649/2346075X.255 Source A related resource from which the described resource is derived Innovaciencia Publisher An entity responsible for making the resource available Universidad de Santander Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Science (General), Science Relation A related resource <a href="https://revistas.udes.edu.co/innovaciencia/article/view/255" target="_blank" rel="noreferrer noopener">https://revistas.udes.edu.co/innovaciencia/article/view/255</a> https://www.socictopen.socict.org/files/original/bb50407577effeec79c14a20380f806c.pdf 12f316394616a2187e2618af264c8f1f Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource EVIDENCIA DEL IMPACTO HUMANO Y CAMBIO CLIMÁTICO NATURAL EN LA REGIÓN DE LOS TUXTLAS, VER.: UN ENFOQUE MULTIDISCIPLINARIO Creator An entity primarily responsible for making the resource Margarita Caballero, Ma. del Socorro Lozano-García, Beatriz Ortega Description An account of the resource El estudio del cambio ambiental utilizando el registro de los indicadores en escalas temporales pasadas, aporta información sobre los diferentes factores que influyen en los ecosistemas. En este trabajo se presentan evidencias de actividad humana y cambio climático en la región tropical de la sierra de Los Tuxtlas, con base en el registro de indicadores de cambio ambiental para los últimos 2000 años. En la secuencia lacustre del Lago Verde, localizado en la porción norte del Golfo de México, se llevó a cabo el análisis de susceptibilidad magnética, carbón orgánico total, contenido de polen, diatomeas y partículas de carbón con el propósito de documentar el impacto humano y su efecto en el ambiente, así como, identificar las condiciones climáticas en la que se desarrollaron. Se identificaron dos etapas de actividad en la cuenca, la primera durante el Clásico en condiciones climáticas secas con una deforestación intensa, actividad agrícola, fuegos, eventos de erosión y niveles lacustres bajos. La segunda etapa a partir de 1960 se caracteriza por deforestación, actividad agrícola y en el lago hay niveles altos y condiciones eutróficas pero se desarrolla bajo escenarios climáticos diferentes. Date A point or period of time associated with an event in the lifecycle of the resource 2007 Source A related resource from which the described resource is derived TIP Revista Especializada en Ciencias Químico-Biológicas Publisher An entity responsible for making the resource available Universidad Nacional Autónoma de México Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Biology (General), Zoology, Chemistry Relation A related resource <a href="http://www.redalyc.org/articulo.oa?id=43211938001" target="_blank" rel="noreferrer noopener">http://www.redalyc.org/articulo.oa?id=43211938001</a>