Results 11 to 20 of about 6,149 (187)

Expansión de los suelos arcillosos parcialmente saturados. Primera parte [PDF]

Ingeniería e Investigación, 1995
En esta primera parte del artículo se presentan las variaciones típicas con la profundidad del contenido de humedad y de los movimientos verticales, que exhiben los depósitos de suelos arcillosos expuestos al aire libre, a las condiciones ambientales, y ...
Lisandro Beltrán Moreno
doaj   +2 more sources

Granulometría, humedad y características de los suelos de la ciudad de Huacho, 2017 [PDF]

Big Bang Faustiniano, 2017
Objetivo: Determinar los tipos de suelos existentes en la ciudad de Huacho mediante una caracterización visual, un análisis granulométrico por tamizado (SUCS) y contenido de humedad. Métodos: La investigación es comparativa, de diseño observacional.
Sleyther Arturo De la Cruz Vega, Cristian Milton Mendoza Flores, Enrique Fernando Tello Rodriguez, Apolinar Quinte Villegas, Jhon Herbeht Obispo Gavino, Rudy Leonel Chavez Alejos   +5 more
openaire   +3 more sources

Compactación potencial en dos suelos de la parte plana del Valle del Cauca. Parte II [PDF]

Acta Agronómica, 2011
Muestras de los primeros 20 cm de la superficie de dos suelos (Calciustol y Haplustol, los dos vérticos mezclados francosos isohipertérmicos con pendiente 0.5%, en diferentes cultivos en el CIAT-Palmira, fueron compactados en el aparato de Richards en ...
García Luis Fernando, Peña Artunduaga María Elvira, Yadira Escobar Betsy, Madero Morales Edgar   +3 more
doaj   +2 more sources

Drying suppresses fine root production to 1 m depths and alters root traits in four distinct tropical forests. [PDF]

New Phytol
Summary Drying and drought in tropical forests, which have some of the highest net primary productivity on Earth, are likely to alter root dynamics, ecosystem function, and carbon (C) storage. We used a chronic drying experiment in four lowland Panamanian forests to investigate whether soil drying shifts tropical forest root production from surface to ...
Cordeiro AL, Cusack DF, Dietterich LH, Valdes E, Gonçalves NB, Oliveira M, Quesada-Ávila G, Wright SJ.   +7 more
europepmc   +2 more sources

Microbial drivers of root plasticity. [PDF]

New Phytol
Summary Soils are highly heterogeneous and dynamic systems, experiencing a constant flow of plant root exudates and moisture fluctuations that affect nutrient distribution, soil physicochemical properties, and microbial metabolisms. Plant roots adjust their development within the soil matrix (growth, branching, root angle, and anatomical features) by ...
Dini-Andreote F, Wells DM, Atkinson JA, Atkinson BS, Finkel OM, Castrillo G.   +5 more
europepmc   +2 more sources

EMERGENCIA Y SOBREVIVENCIA DEL ZACATE ROSADO EN DIFERENTES SUELOS Y PATRONES DE HUMEDAD-SEQUÍA [PDF]

Terra Latinoamericana, 2015
Las plantas invasoras afectan la función y composición de los ecosistemas nativos. La gramínea zacate rosado [Melinis repens (Willd.) Zizka] es una especie invasora introducida que ha ido incrementando su presencia en el estado de Chihuahua, México. Para
Martha Balandrán Valladares, Dámaris Leopoldina Ojeda Barrios, Alicia Melgoza Castillo, Ricardo Mata González   +3 more
doaj   +1 more source

Seasonality regulates the structure and biogeochemical impact of ectomycorrhizal fungal communities across environmentally divergent neotropical dry forests

Journal of Ecology, Volume 111, Issue 8, Page 1598-1613, August 2023., 2023
These results highlight the importance of seasonality and plant community composition in shaping different aspects of SDTF ECM fungal community structure and diversity as well as the potential for both the plant and fungal components of ECM symbioses to impact soil functioning across heterogenous SDTFs.
Katilyn V. Beidler, Jennifer S. Powers, Juan M. Dupuy‐Rada, Catherine Hulshof, David Medvigy, Camila Pizano, Beatriz Salgado‐Negret, Skip J. Van Bloem, German Vargas G, Bonnie G. Waring, Peter G. Kennedy   +10 more
wiley   +1 more source

Climate and microhabitat shape the prevalence of endozoochory in the seed rain of tropical montane forests

Biotropica, Volume 55, Issue 2, Page 408-417, March 2023., 2023
We investigated the effects of climate and microhabitat conditions on the prevalence of endozoochorous plant species in the seed rain of tropical montane forests in southern Ecuador. Our analyses demonstrate that the prevalence of endozoochorous plant species in seed rain increases with temperature across elevations and with leaf area index within ...
Diana C. Acosta‐Rojas, Maciej Barczyk, Carlos I. Espinosa, Boris A. Tinoco, Eike L. Neuschulz, Matthias Schleuning   +5 more
wiley   +1 more source

Effects of interactions between anthropogenic stressors and recurring perturbations on ecosystem resilience and collapse

Conservation Biology, Volume 37, Issue 1, February 2023., 2023
Abstract Insights into declines in ecosystem resilience and their causes and effects can inform preemptive action to avoid ecosystem collapse and loss of biodiversity, ecosystem services, and human well‐being. Empirical studies of ecosystem collapse are rare and hampered by ecosystem complexity, nonlinear and lagged responses, and interactions across ...
David A. Keith, Doug H. Benson, Ian R. C. Baird, Laura Watts, Christopher C. Simpson, Martin Krogh, Sarsha Gorissen, Jose R. Ferrer‐Paris, Tanya J. Mason   +8 more
wiley   +1 more source

Trait functional diversity explains mixture effects on litter decomposition at the arid end of a climate gradient

Journal of Ecology, Volume 110, Issue 9, Page 2219-2231, September 2022., 2022
Litter mixing did not have strong effects on decomposition rates across the studied climatic gradient overall, and the direction and intensity of the mixture effects were context dependent. The effects were stronger and more negative in the dryer ecosystems.
Rafaella Canessa, Liesbeth van den Brink, Monica B. Berdugo, Stephan Hättenschwiler, Rodrigo S. Rios, Alfredo Saldaña, Katja Tielbörger, Maaike Y. Bader   +7 more
wiley   +1 more source