Results 31 to 40 of about 1,415 (184)

Spatial Variation of Acidic Sodic Soils in High‐Andean Environments and Theoretical Estimation of Gypsum Requirement

open access: yesSoil Use and Management, Volume 42, Issue 3, July‐September 2026.
ABSTRACT High‐Andean forage systems are characterized by extensive management of cultivated forages, primarily through rotation of forage oats (Avena sativa) and alfalfa (Medicago sativa), under marginal edaphoclimatic conditions. Within this context, soil sodicity severely constrains the productivity of these systems in the districts of Ayaviri and ...
Kenyi Quispe   +8 more
wiley   +1 more source

Subterranean environments contribute to three‐quarters of classified ecosystem services

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1582-1605, June 2026.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola   +30 more
wiley   +1 more source

Evaluating the sustainability of mineral water consumption using multi‐scale hydrogeophysics in Caxambu, Brazil

open access: yesNear Surface Geophysics, Volume 24, Issue 3, Page 234-251, June 2026.
Abstract A better understanding of the near‐surface aquifer system of the Caxambu Water Park, located in the Minas Gerais State, Brazil, has been achieved. The study aimed to identify groundwater reservoirs and flow patterns and contribute to the hydrogeological conceptual model using a multi‐scale geophysical approach.
Emanuele F. La Terra   +5 more
wiley   +1 more source

Isolamento de amebas de vida livre a partir de água mineral engarrafada Isolation of free-living amoebae from bottled mineral water

open access: yesRevista de Saúde Pública, 1982
Foram isoladas amebas dos gêneros Vahlkampfia, Glaeseria, Acanthamoeba, Filamoeba, Amoeba, Platyamoeba e Hartmanella de dez diferentes marcas de água mineral engarrafadas, servidas no Rio de Janeiro, RJ (Brasil).
Homero Coutinho Salazar   +2 more
doaj   +1 more source

Cultivo da aceroleira irrigada com água salina sob proporções de fósforo e nitrogênio

open access: yesSemina: Ciências Agrárias, 2020
Objetivou-se com este trabalho avaliar o efeito da salinidade de água e proporções fósforo/nitrogênio sobre o crescimento, composição foliar de macronutrientes e sódio e a produção da aceroleira.
Francisco Vanies da Silva Sá   +6 more
doaj   +1 more source

Phylogenetic analysis and the recognition of a new genus for Mexican Crassulaceae segregated from Echeveria

open access: yesTAXON, Volume 75, Issue 3, June 2026.
Abstract Systematic knowledge of the Mexican Crassulaceae is slowly progressing as data from new DNA regions and species sampling efforts increase. We compiled and generated new rbcL, matK, rps16, ITS/ITS2, and ETS DNA sequences and performed an updated phylogenetic reconstruction for a group of 131 Mexican Crassulaceae terminals from 11 of the 13 ...
Luis Emilio de la Cruz‐López   +1 more
wiley   +1 more source

RISCOS DE INGESTÃO DE FLÚOR: ESTUDO DE CASO PARA ÁGUA MINERAL DO INTERIOR DO ESTADO DO RIO DE JANEIRO

open access: yesRevista Brasileira de Ciências Ambientais, 2017
O consumo de flúor presente em águas superficiais e subterrâneas é uma prática comum em diversos países. Além de abordar a temática controversa quanto ao consumo do flúor, este artigo apresenta um estudo de caso de avaliação de risco à saúde humana pelo ...
Ingrid Fernandes Dias da Cruz Alves   +6 more
doaj   +1 more source

New Thermal Mineral Water from Aguas (Penamacor, Central Portugal): Hydrogeochemistry and Therapeutic Indications

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
Thermal mineral waters are a potential resource in the local and economic development of a region. The thermal area of Termas das Águas is in the inner region of central Portugal and its grant will enable the exploration and exploitation of this water resource for medical and therapeutic purposes through a thermal medical SPA.
Gomes, L. Ferreira   +3 more
openaire   +3 more sources

Exiled From Their Own Lands: Indigenist Policies, Oil, and Colonial Plunder in 20th Century Venezuela

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 31, Issue 2, June 2026.
ABSTRACT This article examines the historical displacement of Indigenous peoples in Venezuela, focusing on the links between indigenist policies and the exploitation of natural resources, particularly oil, throughout the 20th century. Using a combined historical and ethnographic approach, it demonstrates how the formation of the Venezuelan nation‐state
Gabriel Tardelli
wiley   +1 more source

Avaliação da concentração de flúor e do consumo de água mineral

open access: yesRevista de Saúde Pública, 2004
OBJETIVO: Considerando a água como importante fonte de ingestão de flúor, o aumento da prevalência de fluorose dentária e do consumo de água mineral, o estudo realizado teve como objetivo avaliar o consumo de água mineral e sua concentração de flúor ...
Ramires Irene   +5 more
doaj  

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