Results 41 to 50 of about 393 (117)

Kinetics of phosphorus sorption in soils in the state of Paraíba¹

Revista Brasileira de Ciência do Solo, 2011
The soil P sorption capacity has been studied for many years, but little attention has been paid to the rate of this process, which is relevant in the planning of phosphate fertilization.
Hemmannuella Costa Santos, Fábio Henrique Tavares de Oliveira, Ignácio Hernan Salcedo, Adailson Pereira de Souza, Valério Damásio da Mota Silva   +4 more
doaj   +1 more source

Contribuições da cromatografia circular de Pfeiffer para análise da saúde do solo

Cuadernos de Geografía: Revista Colombiana de Geografía, 2022
A degradação do solo é um processo proveniente dos manejos adotados pela agricultura industrial, que configura uma crise ecológica e social.
Carlos Eduardo Barros, Fernando Silveira Franco   +1 more
doaj   +1 more source

Estudo do comportamento microestrutural de solos tropicais compactados [PDF]

, 2017
Tese (doutorado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Civil e Ambiental, 2015. ; Devido às particularidades relacionadas ao comportamento dos solos tropicais, diversas pesquisas vêm sendo desenvolvidas nos últimos anos buscando uma melhor caracterização desse material, e até mesmo o desenvolvimento de uma teoria
openaire   +2 more sources

Why Are Most Fish Populations Genetically Homogeneous Along the Southwestern Atlantic Coast? The Role of Life History Traits in Shaping Genetic Patterns

Journal of Biogeography, Volume 53, Issue 8, August 2026.
ABSTRACT Aim Investigate patterns of population genetic structure in Southwestern Atlantic marine fishes and evaluate how geographic range, habitat diversity, and evolutionary history shape population connectivity. Location Southwestern Atlantic, including the Caribbean, Brazilian coast, and Patagonian region, between 0°59′ N and 40°16′ S.
Glaciane Conceição Marques, Carlos Werner Hackradt, Juliana Beltramin De Biasi, Germano Henrique Costa Barrilli, Fabiana Cézar Félix‐Hackradt   +4 more
wiley   +1 more source

Atributos topográficos na diferenciação de Argissolos

Revista Brasileira de Ciência do Solo, 2013
A topografia do terreno controla muitos processos hidrológicos, geomorfológicos e pedológicos, influenciando a radiação solar, precipitação pluvial, escoamento superficial, evaporação, regime de umidade do solo e tipo de vegetação, entre outros.
César da Silva Chagas, Ademir Fontana, Waldir de Carvalho Junior, Sandro Marcelo de Caires   +3 more
doaj   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): I. The Role of Tree Structure

Biotropica, Volume 58, Issue 3, May 2026.
A portion of rainfall that contacts tree canopies is drained down tree stems as stemflow. Stemflow is an underexamined component of rainfall partitioning in tropical forests. To investigate how tree canopy structural attributes influence stemflow in the Brazilian Amazon, we measured stemflow, rainfall, and dendrometric parameters of 56 trees in the ...
Jeferson Alberto de Lima, John Toland Van Stan II, Karolina Lewińska, Agnieszka Dradrach, Jakub Ceglarek, Kelly Cristina Tonello   +5 more
wiley   +1 more source

Agrupamento dos acesso de feijão fava (Phaseolus lunatus) segundo os padrões SDS-PAGE e caracteres morfológicos - DOI: 10.4025/actasciagron.v25i1.2814

Acta Scientiarum. Agronomy, 2008
Feijões fava (Phaseolus lunatus) são bem adaptados a solos tropicais, especialmente a solos inférteis de áreas úmidas. Para verificar a diferença entre acessos de Phaseolus lunatus, 24 acessos foram caracterizados quanto à coloração de flor e de ...
Andreia Yaguiu, Nelson Barbosa Machado-Neto, Victor José Mendes Cardoso   +2 more
doaj   +1 more source

Environmental Contamination Affects Associated Bacterial Communities in a Neotropical Arboreal Ant

Biotropica, Volume 58, Issue 3, May 2026.
Environmental stressors such as contamination from mining tailings can alter microbial communities associated with insects, including social ants. Ants, as widespread and ecologically influential insects with stable microbial associations, offer a relevant model to examine these effects.
Marília R. Bitar, Aristóteles Góes‐Neto, Paulo S. Oliveira, Corrie S. Moreau, Sérvio P. Ribeiro   +4 more
wiley   +1 more source

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

Ibis, Volume 168, Issue 2, Page 571-587, April 2026.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga, Anderson S. Bueno, Richard G. Davies, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Canalized to heat, plastic to cold: adaptive coordination of leaf and seed strategies in populations spanning an elevational gradient

New Phytologist, Volume 250, Issue 2, Page 873-884, April 2026.
Summary In tropical mountains, surviving temperature extremes demands finely tuned strategies. We investigated how populations of the bromeliad Pitcairnia flammea across a 2200 m elevational gradient balance genetic canalization and plasticity, and whether thermal strategies are coordinated between seeds and leaves.
Cleber J. N. Chaves, Danilo U. Tavares, Isabella V. Lemos‐Silva, João P. S. P. Bento, Henrique Vilela‐Bianchini, Paulo Aecyo, Tami C. Cacossi, Marília M. Tavares, Gabriel P. Sabino, Vitor de A. Kamimura, Wagner L. dos Santos, Lucas N. Gonçalves, Karina T. Silva, Juliana L. S. Mayer, Rafael V. Ribeiro, Diego Escobar‐Escobar, Kenneth J. Feeley, Clarisse Palma‐Silva   +17 more
wiley   +1 more source