Carmen D. Arbelo - Academia.edu (original) (raw)

Papers by Carmen D. Arbelo

Revista Colombiana …, 2010

ABSTRACT This paper discusses some changes in the characteristics of a soil subjected to thermal ... more ABSTRACT This paper discusses some changes in the characteristics of a soil subjected to thermal shock. The properties are analyzed using a electrokinetics technique derived from the electrorremediation. The anal. focuses on the variation of the electrolysis current, and the p.d. generated within a region near the electrodes chamber during the treatment. The results are explained in relation to the change of some properties of the soil samples subjected to thermal treatment before the electrokinetic process. [on SciFinder(R)]

Portugaliae Electrochimica Acta, 2004

The Spanish Society of Soil Science (in Spanish: Sociedad Española de la Ciencia del Suelo, SECS)... more The Spanish Society of Soil Science (in Spanish: Sociedad Española de la Ciencia del Suelo, SECS) was founded in 1947 by the Spanish National Research Council (CSIC) to promote cohesion and collaboration between soil science professionals, and with an innovative spirit and a willingness to serve the society. The objectives are: to promote the study, knowledge, research and protection of the soil; to spread, from a scientific point of view, the role played by the soil in favour of society, through ecosystem services such as the production of food and raw materials; The SECS also focus on the protection of other habitats and the conservation of our archaeological heritage; and to preserve knowledge of the soil, its management and use, both from the production and environmental point of view, leading to the optimization of its capabilities. The activities and services of the SECS are accessible on the web site www.secs.com.es, which is continually updated. In this contribution, we will show some examples of recent projects and activities developed by the SECS such as: the edition of the Spanish Journal of Soil Science (SJSS) since 2011; books like the white book on “Tratamiento del suelo en los libros de texto de ESO y Bachillerato en España” available in http://www.secs.com.es/archivo/libro-suelo.pdf, in which the term “Soil” is analysed in many secondary school books (152) in the Spanish education system; conferences, courses, exhibitions, expositions, calendars, the comic “Vivir en el suelo” in diferent languages, and diverse material to promote and disseminate the importance of the soil to the society; and last but not least, the Multingual Soil Science Dictionary (Spanish, Catalan, Gallician and Potuguese with translations in English and French (in process)) available online: http://cit.iec.cat/GLOSECS/inici.html. The promotion of student teams for soil science contests, the SECS Award to attend the Simposio Latinoamericano de Enseñanza y Educación en Ciencia del Suelo (SLCS, Quito, 2016) and other activities, such as incentives for young students, are also some of the strategies to promote the soil, together with an annual award to the best PhD thesis supervised by SECS members. These and other examples will be shown during the session with the main aim of exchanging ideas among soil societies to promote the soil. Access in www.secs.com.es.Peer Reviewe

Sociedade & Natureza

The assessment of soil degradation in natural ecosystems must necessarily be performed from a non... more The assessment of soil degradation in natural ecosystems must necessarily be performed from a non-conventional perspective, focused on agricultural productivity. Thus, the assessment of soil degradation in natural ecosystems requires the definition of standards with which to compare other soils and thus evaluate their quality. In order to define these standards and manage appropriately the processes involved in the degradation and variation of soil quality, it is necessary to understand and establish in detail the genetic processes that have taken place in that area and have led to the formation of a mature soil, which would be considered to be standard, as a non-degraded soil. In accordance with these ideas, we present in this work the evolutive and regressive succession of the soils and examples of the utilization of this methodology to evaluate soil degradation in arid zones and those in high desertification risk in the Canary Islands.

2 pages, 11 references.-- Poster presentado al citado congreso en la Sesion II: Soil (S) No 573.-... more 2 pages, 11 references.-- Poster presentado al citado congreso en la Sesion II: Soil (S) No 573.-- Book of Abstracts of the Communications presented to the 26th International Meeting on Organic Geochemistry (IMOG), held in Costa Adeje, Tenerife – Spain, September 15 – 20, 2013.

Poster con 3 figuras y 9 referencias presentado en el ISMOM 2019 - 8th International Symposium on... more Poster con 3 figuras y 9 referencias presentado en el ISMOM 2019 - 8th International Symposium on Interactions of Soil Minerals with Organic Components and Microorganisms: (Poster S 1.27), 23-28 june, Sevilla (Spain)

This paper presents the results of the research project “Assays of reference concentrations of he... more This paper presents the results of the research project “Assays of reference concentrations of heavy metals (Cd, Cu, Pb and Zn) in representative agricultural soils of the Mediterranean region under controlled horticultural crops”. This project aimed to determine the maximum concentration for Cd, Cu, Pb and Zn related to the reference values for these metals in representative soils of horticultural areas of the Mediterranean region, which do not exceed the maximum concentration established by the legislation for these metals in crops for human consumption. This concentration has been determined for each soil after several assays using reference concentrations of these metals in controlled cultures of lettuce, which represents an important component of the Mediterranean diet and furthermore it is a metal accumulator crop. Reference concentrations are multiples of the reference value established for each metal in horticultural areas of the Valencian Region, a representative area of th...

Poster presentado al citado congreso, en la sesion S07.02: Innovation and soil science - Applicat... more Poster presentado al citado congreso, en la sesion S07.02: Innovation and soil science - Application of advanced NMR and MRI techniques for improving our understanding of soil organic matter formation and its interaction with the mineral phase. Celebrado del 2-6, julio, 2012, en Fiera del Levante, Bari, Italia.

Poster presentado en el VII Simposio Nacional sobre el control de la degradacion y restauracion d... more Poster presentado en el VII Simposio Nacional sobre el control de la degradacion y restauracion de suelos (CONDEGRES 2015) 23-26 de junio, Bilbao, pag. 110-111 (2015)

En el presente trabajo se analizan algunos cambios producidos en las propiedades de un suelo some... more En el presente trabajo se analizan algunos cambios producidos en las propiedades de un suelo sometido a impacto termico. Para llevar a cabo este estudio se utiliza una tecnica electrocinetica basada en los mismos principios que la electrorremediacion. El analisis se enfoca en la variacion, durante el tratamiento, de la corriente de electrolisis y de la diferencia de potencial generada en el interior del suelo en una region cercana a la camara de los electrodos. Los resultados obtenidos se explican con base en las caracteristicas iniciales que presentan los suelos estudiados antes del proceso electrocinetico.

Spanish Journal of Soil Science, 2014

Soil degradation processes have achieved the recognition of a global environmental problem in rec... more Soil degradation processes have achieved the recognition of a global environmental problem in recent years. It has been suggested by various international forums and organizations that in order to adequately establish methods to combat land degradation, it is necessary to evaluate this degradation locally and at a detailed scale. The evaluation of soil degradation of natural ecosystems at a detailed scale requires the definition of standards to which to compare this degradation. To define these standards and properly handle the processes that give rise to variations in soil quality and degradation, it is necessary to establish in some detail the pedogenic processes that have or have not taken place in a particular area and which lead to the formation of a mature soil. A mature soil should be considered as standard in these situations and, therefore, a non-degraded soil. This paper presents the possible evolutive and regressive sequences of soil, and provides some examples of using t...

Forests, 2017

Post-fire hillslope stabilization treatments aim to reduce runoff-erosion risks following forest ... more Post-fire hillslope stabilization treatments aim to reduce runoff-erosion risks following forest fires by counteracting the impact of fire on key soil and hillslope properties. Here we evaluate the effectiveness of wood shred mulch, long-leaved pine needle mulch, and polyacrylamide (PAM) in reducing post-fire runoff and erosion in two volcanic soil types of contrasting wettability using rainfall simulations (55 mm h −1 for 30 min) at the microplot (0.25 m 2) scale. The cover provided by the wood shreds and pine needles led to a reduction of runoff and erosion in both the wettable-(62% and 92%, respectively, for wood shreds, and 55% and 87%, respectively, for needle mulch) and the extremely water-repellent soils (44% and 61%, respectively, for wood shreds). In contrast to what might be expected, PAM did not reduce runoff or erosion when applied to the extremely water-repellent soils, suggesting that PAM should not be applied in this terrain type. Although more research is needed to determine whether the high effectiveness of pine needle mulch and wood shred mulch fully translates to coarser scales, the results are encouraging in terms of these materials' ability to provide effective and relatively economic mitigation treatments for fire-induced runoff-erosion risks in volcanic soils.

Remediation Journal, 2004

This article presents the results of an experimental study conducted to evaluate the behavior of ... more This article presents the results of an experimental study conducted to evaluate the behavior of two types of andisol soils found in Tenerife, Canary Islands, Spain. The soils were evaluated in relation to their buffering capacity when confronted with acid and alkaline fronts generated during electroremediation treatment. The study was conducted using a cell, which established a continuous flow of distilled water through electrode chambers to remove H ϩ and OHgenerated during electrolysis. The results indicate that the soils had sufficient buffer capacity to support variations in pH independent of the maintenance of flow of solution in the electrode chambers. Although the mechanism of migration was not affected, the flow of water favored the movement of ions by diffusion monitoring of the electrolytic current allowed for a real-time parameter to act as an indicator of the quantity of ions available in regions near the electrodes.

Science of The Total Environment, 2007

Among methods which involve the flow of electric current, the electro-remediation techniques have... more Among methods which involve the flow of electric current, the electro-remediation techniques have shown useful both for the removal of polluting species, and for obtaining a series of parameters in relatively laboratory simple experiments which can be used to characterize soils. This technique was applied in the present study to obtain experimental results with two soils from Tenerife. The capacity of the method as methodology for the measurement of the buffering capacity of these soils during electrokinetic experiments was analyzed. The results obtained on electrokinetic determination of buffer capacity correlated quite well with behaviour observed in the pH curves. The technique was promising for soil description primarily because important information could be obtained in shorter time periods than those required when using routine laboratory methods of soil analysis.

Revista Colombiana de Química, 2010

Forests

The evergreen laurel forest is a relic of ancient subtropical/tropical forests, of which the best... more The evergreen laurel forest is a relic of ancient subtropical/tropical forests, of which the best remnant in the Canary Islands is in Garajonay National Park, on La Gomera island. The soil microbiome associated with a mature undisturbed (unburned) laurel forest was characterized at two locations at different topographical positions on the mountain: The slope and the ridge crest. Given the unusual circumstance of an intense wildfire that severely affected part of this forest, the burned soils were also studied. The soil in undisturbed areas was relatively uniform. The bacterial community composition was dominated by bacteria from phyla Proteobacteria, Acidobacteria, and Actinobacteria. The wildfire changed the composition of the bacterial communities. The Acidobacteria, Actinobacteria, and Alphaproteobacteria (dominant class in unburned forests) significantly decreased in burned soils along with a parallel high increase in Betaproteobacteria, Bacteroidetes, and Firmicutes. We further...