Results 11 to 20 of about 262,123 (211)

Diversidad de macroinvertebrados acuáticos y calidad del agua de tres zonas agrícolas en la cuenca alta del río San Pedro-Mezquital, México

open access: yesIntropica, 2023
La agricultura es la principal actividad económica de las comunidades que integran la parte alta de la cuenca del río San Pedro-Mezquital. Por tal razón, el presente trabajo se enfoca en analizar la calidad del agua que se utiliza para riego agrícola ...
Ariel Pulgarín-Ríos
doaj   +2 more sources

Listado florístico preliminar del humedal Río San Pedro-Meoqui a siete años de su designación Ramsar

open access: yesTecnociencia Chihuahua, 2019
Los humedales en zonas áridas proveen funciones ecosistémicas importantes para el entorno, entre ellas, destaca la depuración de contaminantes y el proporcionar hábitat para flora y fauna silvestre.
Pedro Ibarra-Jaime   +3 more
doaj   +2 more sources

Caracterización de la salinidad en suelos de la planicie del río San Pedro, Nayarit, México

open access: yesREVISTA TERRA LATINOAMERICANA, 2023
La planicie del río San Pedro, que tiene una formación fluvio-deltaica, es una de las superficies costeras que fueron afectadas por la intrusión marina durante la última glaciación.
H. Ortega-Escobar   +8 more
semanticscholar   +1 more source

Tourism as a driver of economic and social development in underdeveloped regions

open access: yesRegional Science Policy &Practice, EarlyView., 2023
Abstract Cross‐border cooperations have been usually approached by developing trade agreements between international regions to upgrade their socioeconomic conditions and promote international tourism flows in territories. However, little attention has been paid to the role that tourist companies play in underprivileged territories highly dependent on ...
Rafael Robina‐Ramírez   +3 more
wiley   +1 more source

Fertilidad e índice de calidad del suelo de la cuenca del río San Pedro en Nayarit

open access: yes, 2021
The agricultural area of the San Pedro River basin in Nayarit is a coastal plain with alluvial soils, subjected to flooding, deposition and different processes that control nutrient input and soil fertility.
Óscar Germán Martínez-Rodríguez   +6 more
semanticscholar   +1 more source

IMPACTO DE LAS REPRESAS EN Taxodium mucronatum Ten. EN EL RÍO SAN PEDRO-MEZQUITAL, DURANGO

open access: yesRevista Mexicana de Ciencias Forestales, 2018
El estudio se realizo en un transecto con sabinos muertos en el rio San Pedro-Mezquital, con el objetivo de determinar el impacto dela construccion de presas en el crecimiento radial anual del arbolado, en respuesta al desfasamiento y disminucion de los ...
J. V. Díaz   +4 more
semanticscholar   +2 more sources

A preliminary integrated genetic map distinguishes every chromosome pair and locates essential genes related to abiotic adaptation of Crassostrea angulata/gigas

open access: yesBMC Genetics, 2018
Background The re-sequencing of C. angulata has revealed many polymorphisms in candidate genes related to adaptation to abiotic stress that are not present in C.
Ismael Cross   +6 more
doaj   +1 more source

First record of Eptesicus brasiliensis argentinus Thomas, 1920 (Chiroptera, Vespertilionidae) in Entre Ríos province, Argentina [PDF]

open access: yes, 2018
Here, we present the first record of Eptesicus brasiliensis argentinus Thomas, 1920 for the province of Entre Ríos, Argentina. This subspecies was originally described as a full species (Eptesicus argentinus) based on its morphological features that ...
Barquez, Ruben Marcos   +3 more
core   +1 more source

Asynchronous glacier dynamics during the Antarctic Cold Reversal in central Patagonia [PDF]

open access: yes, 2018
We present 14 new 10Be cosmogenic nuclide exposure ages quantifying asynchronous readvances during the Antarctic Cold Reversal from glaciers in the Baker Valley region of central Patagonia.
Davies, B.J.   +3 more
core   +1 more source

Optimization of the Sequence of Washing Reverse Osmosis Membranes Used for Seawater Desalination [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2017
Seawater contains a number of organic and inorganic components that cause fouling of membranes when subjected to a process of reverse osmosis desalination. This fouling is one of the most important problems in the management of desalination plants, as it
S. Gutierrez-Ruiz   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy