Results 21 to 30 of about 664 (94)
La libéralisation économique et la restructuration des territoires ruraux au Mexique : l’exemple de la culture de l’avocat dans l’État de Michoacán [PDF]
, 2009 La libéralisation économique menée au Mexique lors des deux dernières décennies a eu de fortes conséquences sur les territoires ruraux mexicains. Elle n’a cependant pas toujours renforcé la division territoriale préexistante entre régions productives en ...
Thiébaut, Virginie
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Occurrence of Anticyclonic Tornadoes in a Topographically Complex Region of Mexico
Advances in Meteorology, Volume 2019, Issue 1, 2019., 2019 Tornadoes are violent and destructive natural phenomena that occur on a local scale in most regions around the world. Severe storms occasionally lead to the formation of mesocyclones, whose direction or sense of rotation is often determined by the Coriolis force, among other factors.
Noel Carbajal +5 more
wiley +1 more source
Revisioning The Colonial Record:La relación de Michoacán and Contemporary Mexican Indigenous Film [PDF]
, 2013 This essay discusses two recent Mexican films that draw on the written and pictorial narratives represented in La relación de Michoacán, a sixteenth-century codex.
Gleghorn, Charlotte
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Altitudinal assisted migration of Mexican pines as an adaptation to climate change
Ecosphere, Volume 6, Issue 1, Page 1-16, January 2015., 2015 Since shifts in altitudinal range are expected in response to climate change, we explored the effect on survivorship and growth of moving populations of three Mexican pine species (Pinus devoniana, P. leiophylla and P. pseudostrobus) to higher altitude, aiming to realign the populations to projected future climates in an experimental assisted migration.
D. Castellanos-Acuña +2 more
wiley +1 more source
Effect of Organic Nutrition in the Nursery Growth and Nutrimental Content of Native Avocados of Ometepec, Guerrero, Mexico [PDF]
, 2017 In Mexico, there are several types of wild and criollo avocados that constitute a genetic heritage of this species; these avocados currently grow in an unordered manner on farmer's lands and in backyards, and they need to be studied as they are being ...
A, D. (Damián-Nava) +8 more
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Madera y Bosques, 2018 La estimación precisa de la altura total de los árboles es fundamental para el manejo forestal, pero la medición de todos los individuos en un inventario es prácticamente imposible por los tiempos y costos que genera. El objetivo de este trabajo fue ajustar una ecuación generalizada que estime la altura total como una función del diámetro normal (h-d ...
Jonathan Hernández-Ramos +6 more
openaire +1 more source
BioResources, 2016 With the purpose of taking advantage of pine sawdust residue coming from a sawmill located in Michoacán, México, a pretreatment with nitric acid and sodium hydroxide was performed.
Juan Carlos Farías-Sánchez +7 more
doaj +1 more source
Distribución granulométrica en subproductos de aserrío para su posible uso en pellets y briquetas
Revista Mexicana de Ciencias Forestales, 2018 Con el fin de dar mayor valor agregado a subproductos forestales a partir de la posible elaboración de pellets y briquetas. Se analizó la distribución granulométrica en aserrín, corteza y viruta de Pinus leiophylla, P. montezumae y P. pseudostrobus,
Fermín Correa-Méndez +6 more
doaj +1 more source
A model-based performance test for forest classifiers on remote-sensing imagery [PDF]
, 2009 Ambiguity between forest types on remote-sensing imagery is a major cause of errors found in accuracy assessments of forest inventorymaps. This paper presents a methodology, based on forest plot inventory, ground measurements and simulated imagery, for ...
Couturier, Stéphane +3 more
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Revista Mexicana de Ciencias Forestales, 2018 La falta de regeneración en la zona boscosa bajo manejo forestal de la comunidad Nuevo San Juan Parangaricutiro, Michoacán permitió el desarrollo del presente estudio, cuyo objetivo fue caracterizar la regeneración inducida de Pinus pseudostrobus, en
Miguel Ángel Bello González +4 more
doaj +1 more source