Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Samuel Tejeda"'
Autor:
Yanina Garcias, Romina Torres Astorga, Guillermo Ojeda, Sergio de los Santos Villalobos, Samuel Tejeda, Hugo Velasco
Publikováno v:
Water, Vol 13, Iss 24, p 3632 (2021)
In the hilly semi-arid region of central Argentina, where the agricultural frontier expands at the expense of natural ecosystems, soil erosion is one of the most alarming environmental problems. Thus, obtaining knowledge about the dynamics of erosive
Externí odkaz:
https://doaj.org/article/59c97f66e51042289341daacb5bdf82e
Autor:
Graciela Zarazúa-Ortega, Josefina Poblano-Bata, Samuel Tejeda-Vega, Pedro Ávila-Pérez, Carmen Zepeda-Gómez, Huemantzin Ortiz-Oliveros, Guadalupe Macedo-Miranda
Publikováno v:
The Scientific World Journal, Vol 2013 (2013)
This study is aimed at assessing atmospheric deposition of heavy metals using the epiphytic moss genera Fabronia ciliaris collected from six urban sites in the Metropolitan Zone of the Toluca Valley in Mexico. The concentrations of K, Ca, Ti, V, Cr,
Externí odkaz:
https://doaj.org/article/e62ca987d8a84cf991395482dd731233
Autor:
Mirel Cabrera, Romina Sanabria, Joan Gonzalez, Pablo Cabral, Samuel Tejeda, Graciela Zarazua, Eva Melgar-Paniagua, Marcos Tassano
This database presents the results of fallout and lithogenic radionuclides, soil redistribution and physiographic attributes of 74 soil samples in the Arbolito and Horno watersheds (Uruguay). Gamma spectrometry measurements were obtained using coaxia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11d279567c6adda612c1d08394fa8273
Autor:
Iris Aurora Nava-Jiménez, Samuel Tejeda-Vega, Gloria Emelí Cortina-Ramírez, Graciela Zarazúa-Ortega, Christian Berriozabal-Islas, Hugo Sánchez-Hernández
Publikováno v:
Revista de Biología Marina y Oceanografía. 57
In recent years, the massive increase in Sargassum landings on the Mexican Caribbean coast has generated negative environmental repercussions. This study has two main objectives (1) to analyze the macro and micronutrients of Sargassum fluitans and S.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e045df47b81b62e912923913dff1a21d
https://doi.org/10.22370/rbmo.2022.57.1.3358
https://doi.org/10.22370/rbmo.2022.57.1.3358
Autor:
Juan Antonio, García-Aragón, Víctor, Díaz-Palomarez, Graciela, Zarazúa-Ortega, Samuel, Tejeda-Vega, Pedro, Ávila-Pérez
Publikováno v:
In Ingeniería, Investigación y Tecnología October 2012 14(3):355-367
Autor:
Romina Torres Astorga, Claudio Bravo Linares, Alondra M. Díaz Rodríguez, H. Velasco, Sergio de los Santos-Villalobos, Samuel Tejeda Vega, Marisol Ayala Zepeda, Renan Pereira Cardoso, Roberto Meigikos dos Anjos, Marcelo Costa Muniz
Publikováno v:
Agrociencia. 54:601-618
La diversidad biológica en el suelo es amplia y su función ecológica es necesaria para los servicios ecosistémicos que éste provee. Diversas actividades antropogénicas contribuyen a la pérdida de la fertilidad de este recurso y aceleran su ero
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f20056ebb61d3e861046d62ad0c87c18
https://doi.org/10.47163/agrociencia.v54i5.2119
https://doi.org/10.47163/agrociencia.v54i5.2119
USE OF THE RADIOACTIVE ISOTOPE CESIUM-137 TO EVALUATE THE EROSION RATE ON A DEGRADED SLOPE IN MEXICO
Autor:
Samuel Tejeda, Eva Margarita Melgar-Paniagua, Marcos Tassano, Graciela Zarazúa, Mirel Cabrera, Joan Manuel González, Nancy Lara-Almazán
Publikováno v:
Agrociencia.
In the Ejido La Gavia, in the municipality of Almoloya de Juárez, State of Mexico, the soils dedicated to maize cultivation and cattle grazing show high levels of erosion. Therefore, it is convenient to estimate the soil erosion rate of crops in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::182ff7cf8f55aa6be93e33e770bd0b21
https://doi.org/10.47163/agrociencia.v56i1.2705
https://doi.org/10.47163/agrociencia.v56i1.2705
Autor:
H. B. Ortiz-Oliveros, P. Avila-Perez, R. Sánchez-Muñoz, A. Villalva, Graciela Zarazúa-Ortega, Samuel Tejeda-Vega
Publikováno v:
Journal of Environmental Management. 241:138-148
The work aim is to identify the risk areas by exposure to Cr, Cu, Pb and Zn in the Metropolitan Zone of Toluca Valley (MZTV) using the mosses Fabriona cilaris and Leskea angustata as a biomonitors, geostatistical interpolation and multi-criteria eval
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1209d8438a578ada96d92734b3d04b2
https://doi.org/10.1016/j.jenvman.2019.04.018
https://doi.org/10.1016/j.jenvman.2019.04.018
Autor:
Yanina Garcias, Gisela Borgatello, Romina Torres Astorga, Samuel Tejeda-Vega, Hugo Velasco, Sergio de los Santos-Villalobos
Soil erosion is one of the most serious environmental problems caused by land-use changes in semi-arid regions of central Argentina. Hence, to understand the erosive dynamics in these regions becomes fundamental. Sub-catchment Durazno del Medio (6.56
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6c89193721b0cc2cb8c840c4bd5f2f0
https://doi.org/10.5194/egusphere-egu21-7811
https://doi.org/10.5194/egusphere-egu21-7811