Microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of Argentina
Background and aims: The influence of biological soil crusts (BSC) on soil roughness is an important function of these communities at the ecosystem level. Our objective was to characterize microtopographically the different types of BSC and evaluate their effect on the roughness of the soil along th...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Sociedad Argentina de Botánica
2019
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| Materias: | |
| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/24163 |
| Aporte de: |
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I10-R325-article-24163 |
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| record_format |
ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-325 |
| container_title_str |
Boletín de la Sociedad Argentina de Botánica |
| language |
Español |
| format |
Artículo revista |
| topic |
aridity biological crusts evapotranspiration morphology roughness aridez costras biológicas evapotranspiración morfología relieve. |
| spellingShingle |
aridity biological crusts evapotranspiration morphology roughness aridez costras biológicas evapotranspiración morfología relieve. Navas Romero, Ana L Herrera Moratta, Mario A Martinez Carretero, Eduardo Fernandez Belmonte, María C Duplancic, Maria A Microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of Argentina |
| topic_facet |
aridity biological crusts evapotranspiration morphology roughness aridez costras biológicas evapotranspiración morfología relieve. |
| author |
Navas Romero, Ana L Herrera Moratta, Mario A Martinez Carretero, Eduardo Fernandez Belmonte, María C Duplancic, Maria A |
| author_facet |
Navas Romero, Ana L Herrera Moratta, Mario A Martinez Carretero, Eduardo Fernandez Belmonte, María C Duplancic, Maria A |
| author_sort |
Navas Romero, Ana L |
| title |
Microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of Argentina |
| title_short |
Microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of Argentina |
| title_full |
Microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of Argentina |
| title_fullStr |
Microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of Argentina |
| title_full_unstemmed |
Microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of Argentina |
| title_sort |
microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of argentina |
| description |
Background and aims: The influence of biological soil crusts (BSC) on soil roughness is an important function of these communities at the ecosystem level. Our objective was to characterize microtopographically the different types of BSC and evaluate their effect on the roughness of the soil along three systems differentiated by their degree of aridity.
M&M: The microrelief and roughness were evaluated in three systems: semi-arid, arid, and hyper-arid; by different and complementary techniques: chain method, photographic analysis and technique of metal rods. For the first one, a block design was used, while for the other two, we worked on the types of dominant biological crusts in each system.
Results: The morphology of the BSC varied according to the type of dominant organism. The mosses had a low height and were classified as gently undulating, the cyanobacteria had more abrupt peaks, and was classified as pinnacled, and the lichens had two height frequencies and were classified as rolling. The BSC influenced the roughness in the three sites evaluated. The type of BSC that dominated influenced the level of roughness found. The hyper-arid site was the site where the BSC had the most significant impact on roughness.
Conclusions: The microtopographic variations and the increase in roughness provided by the BSC is key to understanding the dynamics of the Monte because small interruptions on the soil such as those generated by the BSC could increase water availability and decrease nutrient losses by erosion, two fundamental aspects of the functioning of these fragile systems. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2019 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/24163 |
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I10-R325-article-241632020-01-06T19:07:22Z Microtopographic characterization and influence of biological soil crusts on the roughness of the soil in the center-west of Argentina Caracterización microtopográfica e influencia de las costras biológicas en la rugosidad del suelo en el centro-oeste de la Argentina Navas Romero, Ana L Herrera Moratta, Mario A Martinez Carretero, Eduardo Fernandez Belmonte, María C Duplancic, Maria A aridity biological crusts evapotranspiration morphology roughness aridez costras biológicas evapotranspiración morfología relieve. Background and aims: The influence of biological soil crusts (BSC) on soil roughness is an important function of these communities at the ecosystem level. Our objective was to characterize microtopographically the different types of BSC and evaluate their effect on the roughness of the soil along three systems differentiated by their degree of aridity. M&M: The microrelief and roughness were evaluated in three systems: semi-arid, arid, and hyper-arid; by different and complementary techniques: chain method, photographic analysis and technique of metal rods. For the first one, a block design was used, while for the other two, we worked on the types of dominant biological crusts in each system. Results: The morphology of the BSC varied according to the type of dominant organism. The mosses had a low height and were classified as gently undulating, the cyanobacteria had more abrupt peaks, and was classified as pinnacled, and the lichens had two height frequencies and were classified as rolling. The BSC influenced the roughness in the three sites evaluated. The type of BSC that dominated influenced the level of roughness found. The hyper-arid site was the site where the BSC had the most significant impact on roughness. Conclusions: The microtopographic variations and the increase in roughness provided by the BSC is key to understanding the dynamics of the Monte because small interruptions on the soil such as those generated by the BSC could increase water availability and decrease nutrient losses by erosion, two fundamental aspects of the functioning of these fragile systems. Introducción y objetivos: La influencia de las costras biológicas (CBS) en la rugosidad del suelo es una importante función de estas comunidades a nivel ecosistémico. Nuestros objetivos fueron caracterizar microtopográficamente los tipos de CBS y evaluar su efecto en la rugosidad del suelo en tres sistemas diferenciados por su grado de aridez. M&M: El microrelieve de las CBS y su influencia en la rugosidad se evaluaron en tres sistemas: semiárido, árido, e hiperárido; mediante técnicas diferentes y complementarias: método de la cadena, análisis fotográfico y técnica de las varillas metálicas. Para la primera se empleó un diseño en bloque, mientras que paras las otras dos se trabajó sobre los tipos de CBS dominantes en cada sistema. Resultados: La morfología de las CBS varió según el tipo de organismo dominante. Los musgos tuvieron una baja altura clasificándose como “suavemente ondulados”, las cianobacterias tuvieronpicos más abruptos, clasificándose como “pinaculadas” y los líquenes tuvieron dos frecuencias de alturas clasificándose como “rodante”. Las CBS influyeron en la rugosidad en los tres sitios evaluados. El sitio hiperárido fue el sitio en el que mayor impacto tuvieron las CBS en la rugosidad. El tipo de CBS que dominó influyó en el nivel de rugosidad hallado. Conclusiones: Las variaciones microtopográficas y el incremento en la rugosidad proporcionada por las CBS es clave en la dinámica del Monte debido a que pequeñas interrupciones sobre el terreno podrían incrementar la disponibilidad de agua y disminuir las pérdidas de nutrientes por erosión, dos aspectos fundamentales del funcionamiento de estos sistemas. Sociedad Argentina de Botánica 2019-11-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf text/html https://revistas.unc.edu.ar/index.php/BSAB/article/view/24163 10.31055/1851.2372.v54.n4.24163 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 54 No. 4 (2019): December; 533-551 Boletín de la Sociedad Argentina de Botánica; Vol. 54 Núm. 4 (2019): Diciembre; 533-551 Boletín de la Sociedad Argentina de Botánica; v. 54 n. 4 (2019): Diciembre; 533-551 1851-2372 0373-580X 10.31055/1851.2372.v54.n4 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/24163/28505 https://revistas.unc.edu.ar/index.php/BSAB/article/view/24163/28506 Derechos de autor 2019 Boletín de la Sociedad Argentina de Botánica |