Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Martha Elena Nava-Tablada"'
Publikováno v:
Interconectando Saberes, Iss 16 (2023)
En la generación de energía hidroeléctrica nacional predominó la construcción de grandes presas que tuvieron impactos ambientales y sociales negativos. En otros países, las mini hidroeléctricas son fuentes de energía sustentable, pero en Méx
Externí odkaz:
https://doaj.org/article/dfe0e463ae754464b5d22c3969b6b2fd
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 26, Iss 2 (2023)
Background. The fishing problem in the Lagunar de Alvarado System (LAS), taking into account environmental or socioeconomic aspects, has been analyzed by various authors, but few have addressed the relationship between environmental problems as perce
Externí odkaz:
https://doaj.org/article/9bf63794c0c745039e6da9141f0eb5ac
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 22, Iss 1 (2019)
Currently, urban agriculture is recognized worldwide as an important economic activity, which contributes to improving the food, income and the environment of the population living in cities. In Mexico, despite the evident social, economic and enviro
Externí odkaz:
https://doaj.org/article/3e4ece4c65664edf9ce71aa93ae52b5d
Autor:
Martha Elena Nava-Tablada, Sandra Eunice MartÃnez-Garza, Felipe Gallardo-López, Octavio RuÃz-Rosado, Verónica Vázquez-GarcÃa
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 12, Iss 3, Pp 629-638 (2010)
Mexico has a tradition of migration to the United States. Nevertheless, Veracruz had not experienced a significant exodus of its population up until the nineteen nineties, when emigration from Veracruz began to increase rapidly, especially in the rur
Externí odkaz:
https://doaj.org/article/3659c07250b943ba9f38e88a03921127
Autor:
Martha Elena Nava-Tablada, Adán Villa-Herrera, Silvia López-OrtÃz, Samuel Vargas-López, Eusebio Ortega-Jiménez, Felipe Gallardo-López
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 10, Iss 2, Pp 253-261 (2009)
The objective was to study the traditional uses of guacimo (Guazuma ulmifolia Lam), compared to other local forage resources for livestock. The expectative of farmers on the use of trees as alternative sources of forage in Angostillo, Paso de Ovejas,
Externí odkaz:
https://doaj.org/article/2f17d82adae94c04907acfd82221c093
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 15, Iss S2 (2012)
An increase in international migration from the State of Veracruz, Mexico, in the decade of the 1990s, mostly occurred as a result of the agricultural crisis in the rural sector. The state coffee producing sector proved to be no exception to the impa
Externí odkaz:
https://doaj.org/article/121c620dedb64b8595d51cfe705beb7a
Autor:
Liliana Armida-Alcudia, Octavio Ruiz-Rosado, Sergio Salgado-GarcÃa, Felipe Gallardo-López, Martha Elena Nava-Tablada, José Francisco Juárez-López
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 13, Iss 3 (2011)
La caña de azúcar es una de los cultivos pilares en la economÃa de Tabasco, México, pues se cultivan 27,041 ha que contribuyen con el 4 % de la producción nacional de azúcar, ocupando el tercer lugar en superficie cultivada. Esta in
Externí odkaz:
https://doaj.org/article/96434b176dbd4d85b837f928d0664eff
Autor:
Martha Elena Nava-Tablada, José Arturo Melquiades Hernández-Solabac, Salvador DÃaz-Cárdenas, Emiliano Pérez-Portilla, Esteban Escamilla-Prado
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 14, Iss 3 (2011)
Veracruz comes third in terms of national coffee production; however this sector is facing a crisis because of the fall in prices in the international market which has resulted amongst other things in increased emigration to the United States. The ai
Externí odkaz:
https://doaj.org/article/e887d9de7d4748d8b2e7648e730b76c2
Publikováno v:
Tropical and Subtropical Agroecosystems. 26
Background. The fishing problem in the Lagunar de Alvarado System (LAS), taking into account environmental or socioeconomic aspects, has been analyzed by various authors, but few have addressed the relationship between environmental problems as perce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6d68819a4997759148cf1c18daad261
https://doi.org/10.56369/tsaes.4418
https://doi.org/10.56369/tsaes.4418
Publikováno v:
Interconectando Saberes, Iss 12 (2021)
México está entre los diez principales productores de café y Veracruz ocupa el segundo lugar nacional. Desde fines del siglo XX hay una crisis derivada de la liberación del mercado internacional, sobreproducción y bajos precios. En México se tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc20cfa6b4e4cf193876f8b30c237001
https://doi.org/10.25009/is.v0i12.2716
https://doi.org/10.25009/is.v0i12.2716