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We studied the potential of white shrimp farming with groundwater from the coastal aquifer of Guasave, Sinaloa. The use of water from the aquifer in aquaculture represents challenges due to variability in the quality of groundwater. We did twenty-three vertical electrical soundings (VES), performed to guide the search for continental groundwater, obtaining the resistivity of the saturated formation (Ro) and a relationship with resistivity of aquifer water (Rw) = 0.4478 Ro + 0.8371. We obtained ionic content and nutrients from shrimp farming water. Also, a positive correlation was found between the electrical conductivity of the aquifer water (inverse of Rw) with chlorine, sodium, magnesium, and calcium ions in 34 water samples. The analysis of ions and ammonia-nitrogen, nitrates, phosphates, potassium, manganese, and calcium were used to select suitable sites to perform in two shorts bioassays: natural aquifer water and adding KCl and Mg2Cl to simulate diluted seawater. In most natural waters, survival of larvae was higher than 60%, and in simulated seawater survival improved only in two sites. Building the Rw-Ro relation allowed us to infer the quality and suitability of water and the positioning of the most suitable place for drilling. Finally, Rw relation with dissolved ions allowed us to estimate aquifer water quality and reduce uncertainty.

Hydraulic conductivity is a basic element in the advancement of knowledge of a geological environment in both the flow and transport processes of pollutants for conservation projects, managementand environmental management and also for the development of public policies for protection of ecosystems, among others. The aim of this paper is to obtain the hydraulic conductivity (K) and the finescontent (C) of saturated granular half using two empirical laws. One correlates the electrical conductivity of saturated granular media σo and water saturated σw which depends on the formation factor(F), cation exchange capacity (CEC) and the fines content in the saturated soil. Using data obtained from materials of 18 samples from 6 wells the relationships between F-C and CEC-C were obtained,so the equation reduces to a σo function in terms of σw and C, with a correlation coefficient of R = 0.97. A second experimental law is the one that results from the experimental relationship between K and C,being 1.4054 K 0.1804.C with a correlation coefficient of R = 0.96. From both experimental expressions relationships between K and C, a and C,and C are created so from every pair knowing one of them you get to know the other one. Under the scheme outlined electrical conductivity sections for the saturated medium and fines content are obtained,finding that the groundwater in the study area consists of a thin top layer and beneath it there is a predominantly sandy environment.

Isolation due to the COVID-19 pandemic has heightened daily tension, leading to stress and other illnesses. This research examined the impact of backyard activities on social and personal well-being, focusing on agricultural (gardens, vegetables, medicinal plants) and livestock activities (chickens, goats, sheep, cows). An exploratory study was conducted using a Likert-scale survey of 387 people, with 22 items covering economic growth, social well-being, and human development. The results showed that 50% of the respondents experienced pleasant emotions through sensory engagement with home gardens, leading to well-being, reduced anxiety and stress, better concentration, and improved family harmony. McDonald’s Omega (ω) value for item consistency was 0.964. Strong correlations were found between economic growth, social well-being, and human development with social and personal well-being, at 0.719, 0.819, and 0.812, respectively. These results are validated by an exploratory principal component factor analysis, which shows the correlation of the classes that integrate backyard activities on a principal axis. Backyard livestock activities had a lesser impact on personal and social well-being compared to agricultural activities, which were valued more for their economic and nutritional contributions. Thus, backyard activities, especially those involving home gardens, significantly enhance social and personal well-being alongside their economic and food benefits.

El conocimiento de las propiedades del suelo agrícola es crucial para la selección óptima de los tipos de cultivo, riego y fertilización. Este estudio contiene los resultados de la aplicación en campo y en laboratorio de mediciones eléctricas para obtener el contenido de finos, la porosidad, la conductividad hidráulica y la capacidad de intercambio catiónico (CIC) en tres parcelas agrícolas dedicadas al cultivo de la cebada. Los valores del contenido de finos se obtuvieron mediante mediciones eléctricas en muestras de suelo de laboratorio y el algoritmo de Ryjov, que es comparable a los valores calculados a partir del análisis textural de Bouyoucos. En la parcela agrícola A, un perfil de Tomografía de Resistividad Eléctrica (TRE), junto con las mediciones de la humedad y la salinidad del suelo, muestran resultados de alta resolución para determinar las propiedades del suelo, a partir de una clara imagen del espesor del suelo, así como la identificación de sus horizontes. Un estudio de rápido avance con el método Perfilaje Eléctrico (PE) fue realizado en las tres parcelas, resultando en mapas de propiedades del suelo. Las parcelas muestran rango de valores de CIC como: A-bajo, B-moderado y C-alto. Este resultado se ajusta a los rendimientos de los cultivos por hectárea y al análisis de fertilidad realizado en cada parcela, lo que confirma no sólo la eficacia del método PE y del algoritmo de Ryjov para el estudio de las propiedades del suelo agrícola. doi: https://doi.org/10.22201/igeof.00167169p.2021.60.1.2037