Results 41 to 50 of about 16,205,921 (212)

Estimating abundance of aggregated populations with drones while accounting for multiple sources of errors: A case study on the mass nesting of Giant South American River Turtles

open access: yesJournal of Applied Ecology, Volume 62, Issue 8, Page 2036-2047, August 2025.
The developed approach can be applied to several contexts to efficiently survey spatially aggregated populations using drone‐derived orthomosaics, and to understand phenology at these aggregation sites. We provide general recommendations for planning surveys and discuss implementations of our approach using other types of marking methods and model ...
Ismael V. Brack   +5 more
wiley   +1 more source

Análisis de los recursos hídricos de Riegos del Alto Aragón (Huesca) en la primera década del siglo XXI

open access: yesEconomía Agraria y Recursos Naturales, 2013
Este trabajo profundiza en la evolución de la situación hídrica de la Comunidad General de Riegos del Alto Aragón (127.210 ha), localizada en el noreste español.
Julio Sánchez-Chóliz, Cristina Sarasa
doaj   +1 more source

Achieving sustainable water distribution through penalty‐free multi‐objective evolutionary design optimization

open access: yesWorld Water Policy, Volume 11, Issue 2, Page 499-525, May 2025.
Abstract Water distribution networks are costly long‐term investments, prompting researchers to seek cost reduction and efficient design solutions using optimization techniques. In this context, the Penalty‐Free Multi‐Objective Evolutionary Algorithm (PFMOEA) is employed alongside pressure‐dependent analysis (PDA) to optimize water distribution systems
Emily Kambalame, John Ndiritu
wiley   +1 more source

Assessing Closed Hydroponic Subsystems for Batavia Lettuce Growth Under Different Planting Densities

open access: yesWorld Water Policy, Volume 11, Issue 2, Page 427-438, May 2025.
ABSTRACT Hydroponic systems have the potential to be sustainable and alternative methods for food production that confer advantages of high production and better control of growth. However, only a few studies have focused on leafy vegetable growth in different subsystems and environmental variables.
Demet Çekin   +6 more
wiley   +1 more source

The genomics and physiology of abiotic stressors associated with global elevational gradients in Arabidopsis thaliana

open access: yesNew Phytologist, Volume 244, Issue 5, Page 2062-2077, December 2024.
Summary Phenotypic and genomic diversity in Arabidopsis thaliana may be associated with adaptation along its wide elevational range, but it is unclear whether elevational clines are consistent among different mountain ranges. We took a multi‐regional view of selection associated with elevation.
Diana Gamba   +14 more
wiley   +1 more source

EFECTO DEL SISTEMA DE RIEGO Y CLIMA EN LA EFICIENCIA DEL USO DE AGUA DE NOGAL PECANERO

open access: yesTerra Latinoamericana, 2014
El nogal pecanero (Carya illinoensis K.) es una especie frutícola de gran importancia para México, su cultivo se realiza en regiones de clima semidesértico donde el agua es el factor limitante de la producción, por lo que es necesario obtener la máxima ...
Alejandro Zermeño González   +5 more
doaj  

Tratamiento del agua residual de un matadero: Eficiencia del proceso de coagulación - floculación

open access: yesAgroindustrial Science, 2020
El objetivo del presente trabajo fue evaluar los beneficios y eficacia del tratamiento de coagulación y floculación de las aguas residuales provenientes de un matadero. Para ello se analizaron muestras de 500 ml y se utilizó sulfato de aluminio (1%) y cloruro férrico (1%) como agentes coagulantes, polímero catiónico (1%) como agente floculante y ...
Yrwin Azabache   +5 more
openaire   +1 more source

Bulk water services delivery challenges in the Dr. Ruth Segomotsi Mompati district municipality in South Africa's North West Province

open access: yesWorld Water Policy, Volume 10, Issue 3, Page 821-858, August 2024.
Abstract This study thoroughly examines the difficulties in providing bulk water services in Dr. Ruth Segomotsi Mompati district municipality in the North West Province, with the end goal of giving comprehensive suggestions for operational and strategic improvements. The study adopted a qualitative research approach, employing semistructured interviews
Nelda Mouton   +3 more
wiley   +1 more source

Determinación del requerimiento hídrico del pimentón en el municipio de Candelaria, departamento del Valle del Cauca

open access: yesActa Agronómica, 2010
Se realizó un ensayo con el fin de determinar el requerimiento hídrico del pimentón Capsicum annuum variedad Unapal-Serrano, en la zona de Candelaria-Valle del Cauca (Colombia).
Adriana Gómez Enríquez   +3 more
doaj   +2 more sources

Análisis de la eficiencia física, económica y social del agua en espárrago (Asparagus officinalis L.) y uva (Vitis vinífera) de mesa del DR-037 Altar-PitiquitoCaborca, Sonora, Mexico 2014

open access: yesRevista de la Facultad de Ciencias Agrarias, 2018
Este trabajo estimó la eficiencia del agua en los cultivos de espárrago y vid en el Distrito de Riego 037 mediante el uso de indicadores que permitieron determinar la eficiencia física, económica y social del agua en el cultivo de espárrago versus uva ...
José Luis Ríos Flores   +7 more
doaj  

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