2018
DOI: 10.20937/atm.2018.31.04.04
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Land use/land cover change and extreme climatic events in the arid and semi-arid ecoregions of Mexico

Abstract: RESUMENLas tierras áridas y semiáridas representan el 60% del territorio mexicano. Además de albergar a diversas especies endémicas, concentran una gran proporción de la población y ofrecen a sus habitantes servicios ecosistémicos cruciales. Sin embargo, los impactos de actividades productivas han generado procesos de degradación y desertización, acentuados por la alta sensibilidad de estos sistemas a la variabilidad climática. La información sobre los procesos de cambio en el uso del suelo y los impactos de l… Show more

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Cited by 28 publications
(17 citation statements)
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“…In arid and semi-arid regions (in northern Mexico), the risk was driven by extreme temperatures, high seasonality, and low precipitation regimes. These regions are more prone to extreme climatic events (Pontifes et al, 2018). For instance, the north of Mexico is not suitable for rainfed agriculture because of the threat to droughts (mean annual precipitation <350 mm) (Moreno and Huber-Sannwald, 2011).…”
Section: Discussionmentioning
confidence: 99%
“…In arid and semi-arid regions (in northern Mexico), the risk was driven by extreme temperatures, high seasonality, and low precipitation regimes. These regions are more prone to extreme climatic events (Pontifes et al, 2018). For instance, the north of Mexico is not suitable for rainfed agriculture because of the threat to droughts (mean annual precipitation <350 mm) (Moreno and Huber-Sannwald, 2011).…”
Section: Discussionmentioning
confidence: 99%
“…Global warming is a human-induced phenomenon that gradually endangers food security in different aspects of livestock [1] and agricultural production systems [2]. This situation is expected to be more pronounced in developing countries [1,3] in particular, those located in tropical, arid, and semi-arid regions, where agricultural activities are the main source of employment and income and where high temperatures are experienced already [4]. In these regions, the increased temperatures will raise water loss via evapotranspiration and intensify plant water stress, leading to poor harvests [2,5].…”
Section: Introductionmentioning
confidence: 99%
“…Al ser una especie exótica, con características fisiológicas que le permiten adaptarse a la región (Ramírez, 1999;Sanderson, Voight, & Jones, 1999;Ramírez et al, 2001), su introducción ha ocasionado que 1) grandes extensiones de terreno con vegetación natural hayan sido remplazadas activamente por sabanas de buffel, y 2) la invasión por parte de dicha especie en sitios de vegetación nativa donde no fue introducida intencionalmente (Burquez-Montijo, Miller, & Martinez-Yrizar, 2002;Castellanos et al, 2002Johnson & Navarro, 1992). 2007Sivakumar, 2007;Pontifes, García-Meneses, Gómez-Aíza, Monterroso-Rivas, & Caso-Chávez, 2018), loss of biodiversity (Valdez-Zamudio, Castellanos Villegas, & Marsh, 2000;Romo-León, van Leeuwen, & Castellanos, 2013), introduction of fire dynamics (O'Hara, Street-Perrot, & Burt 1993;Brooks, et al, 2004), modification to carbon fluxes (Hinojo-Hinojo et al, 2016 and modifications to the structure, composition and floristic function of native ecosystems (Castellanos et al, 2010 and, derived from the introduction of buffel grass in the Sonoran Desert. However, information documenting and comparing how native ecosystems and introduced buffel savannas respond to specific phases of global climate systems is scarce.…”
Section: Introductionunclassified
“…The climate pattern is very complex and causes variations in ocean temperatures in the equatorial Pacific, changes normal surface temperatures, and can have large-scale impacts on both ocean processes and global climate conditions (NOAA, 2018). For example, in the El Niño phase, ocean waters along South America and California warm up to higher than normal temperatures; this leads to higher than normal rainfall events in some parts of Diversos trabajos han documentado procesos como desertificación (Castellanos, et al, 2002;Millennium Ecosystem Assessment [MEA], 2005;Reynolds, et al, 2007;Sivakumar, 2007;Pontifes, García-Meneses, Gómez-Aíza, Monterroso-Rivas, & Caso-Chávez, 2018), pérdida de biodiversidad (Valdez-Zamudio, Castellanos Villegas, & Marsh, 2000;Romo-León, van Leeuwen, & Castellanos, 2013), introducción de dinámicas de fuego (O'Hara, Street-Perrot, & Burt 1993;Brooks, et al, 2004), modificación a los flujos de carbono (Hinojo-Hinojo et al, 2016) y modificaciones de la estructura composición y función florística de los ecosistemas nativos (Castellanos et al, 2010(Castellanos et al, y 2013, derivados de la introducción de zacate buffel en el Desierto Sonorense. Sin embargo, la información que documente y compare cómo los ecosistemas nativos y las sabanas introducidas de buffel responden ante fases específicas de sistemas climáticos globales es escasa.…”
Section: Introductionunclassified