Biophysical evaluation of fertility islands in the Arid Chaco (Argentina)
Forests degradation in arid and semi-arid lands may conduct to the formation of “fertility islands” due to the accumulation of soil particles, water, nutrients and biomass under trees and shrubs. In the Arid Chaco fertility islands are characterised by the presence of Prosopis flexuosa and Larrea di...
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| Lenguaje: | Inglés |
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Facultad de Ciencias Agropecuarias
2021
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/agris/article/view/30529 |
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I10-R352-article-305292024-06-18T19:25:38Z Biophysical evaluation of fertility islands in the Arid Chaco (Argentina) Evaluación biofísica de islas de fertilidad en el Chaco Árido (Argentina) Karlin, Marcos Sebastián Coirini, Rubén Ringuelet, Ariel Bernasconi Salazar, Javier Cora, Amanda Contreras, Ana Bravo, María Belén Buffa, Eduardo forage Larrea microclimate physical fertility Prosopis soil moisture forraje Larrea microclima fertilidad física Prosopis humedad del suelo Forests degradation in arid and semi-arid lands may conduct to the formation of “fertility islands” due to the accumulation of soil particles, water, nutrients and biomass under trees and shrubs. In the Arid Chaco fertility islands are characterised by the presence of Prosopis flexuosa and Larrea divaricata. The objective was to evaluate biophysical variables in soil, microclimate and the plant response under canopy and in intercanopy. Infiltrability, microtopography, soil bulk density, soil and air moisture and temperature, and light were measured under the canopy, at the limit of the canopy and in the intercanopy. These variables were correlated with the litter and plant frequencies associated with the fertility islands. P. flexuosa canopy and litter understorey tend to maintain more soil moisture compared with the intercanopy, by reducing soil and air temperature and by increasing air moisture. This increases the frequency of Dyksterhuis’ decreaser species. Under L. divaricata the canopy effect is not as effective as that of P. flexuosa and understorey plant response is not significative. La degradación de bosques en zonas áridas y semiáridas puede conducir a la formación de "islas de fertilidad" por acumulación de partículas de suelo, agua, nutrientes y biomasa debajo de árboles y arbustos. En el Chaco Árido las islas de fertilidad están caracterizadas por la presencia de Prosopis flexuosa y Larrea divaricata. El objetivo fue evaluar variables biofísicas del suelo, del microclima y la respuesta de las plantas bajo y fuera de su canopia. La capacidad de infiltración, microtopografía, densidad aparente del suelo, humedad y temperatura del suelo y del aire, y luz se midieron debajo, en el límite y fuera de la canopia. Estas variables se correlacionaron con la frecuencia del mantillo y de las plantas asociadas a las islas de fertilidad. La canopia de P. flexuosa y el mantillo en el sotobosque tienden a conservar más humedad edáfica en comparación con la intercanopia, al reducir la temperatura del suelo y del aire, y al aumentar la humedad del aire. Esto aumenta la frecuencia de las especies decrecientes de Dyksterhuis. Bajo L. divaricata el efecto de dosel no es tan efectivo como el de P. flexuosa y la respuesta de las plantas bajo canopia no es significativa. Facultad de Ciencias Agropecuarias 2021-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion text/html application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/30529 10.31047/1668.298x.v38.n1.30529 AgriScientia; Vol. 38 No. 1 (2021): ; 1-13 AgriScientia; Vol. 38 Núm. 1 (2021): ; 1-13 1668-298X 10.31047/1668.298x.v38.n1 eng https://revistas.unc.edu.ar/index.php/agris/article/view/30529/34958 https://revistas.unc.edu.ar/index.php/agris/article/view/30529/33995 Derechos de autor 2021 Marcos Sebastián Karlin, Rubén Coirini, Ariel Ringuelet, Javier Bernasconi Salazar, Amanda Cora, Ana Contreras, María Belén Bravo, Eduardo Buffa https://creativecommons.org/licenses/by-sa/4.0 |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-352 |
| container_title_str |
AgriScientia |
| language |
Inglés |
| format |
Artículo revista |
| topic |
forage Larrea microclimate physical fertility Prosopis soil moisture forraje Larrea microclima fertilidad física Prosopis humedad del suelo |
| spellingShingle |
forage Larrea microclimate physical fertility Prosopis soil moisture forraje Larrea microclima fertilidad física Prosopis humedad del suelo Karlin, Marcos Sebastián Coirini, Rubén Ringuelet, Ariel Bernasconi Salazar, Javier Cora, Amanda Contreras, Ana Bravo, María Belén Buffa, Eduardo Biophysical evaluation of fertility islands in the Arid Chaco (Argentina) |
| topic_facet |
forage Larrea microclimate physical fertility Prosopis soil moisture forraje Larrea microclima fertilidad física Prosopis humedad del suelo |
| author |
Karlin, Marcos Sebastián Coirini, Rubén Ringuelet, Ariel Bernasconi Salazar, Javier Cora, Amanda Contreras, Ana Bravo, María Belén Buffa, Eduardo |
| author_facet |
Karlin, Marcos Sebastián Coirini, Rubén Ringuelet, Ariel Bernasconi Salazar, Javier Cora, Amanda Contreras, Ana Bravo, María Belén Buffa, Eduardo |
| author_sort |
Karlin, Marcos Sebastián |
| title |
Biophysical evaluation of fertility islands in the Arid Chaco (Argentina) |
| title_short |
Biophysical evaluation of fertility islands in the Arid Chaco (Argentina) |
| title_full |
Biophysical evaluation of fertility islands in the Arid Chaco (Argentina) |
| title_fullStr |
Biophysical evaluation of fertility islands in the Arid Chaco (Argentina) |
| title_full_unstemmed |
Biophysical evaluation of fertility islands in the Arid Chaco (Argentina) |
| title_sort |
biophysical evaluation of fertility islands in the arid chaco (argentina) |
| description |
Forests degradation in arid and semi-arid lands may conduct to the formation of “fertility islands” due to the accumulation of soil particles, water, nutrients and biomass under trees and shrubs. In the Arid Chaco fertility islands are characterised by the presence of Prosopis flexuosa and Larrea divaricata. The objective was to evaluate biophysical variables in soil, microclimate and the plant response under canopy and in intercanopy. Infiltrability, microtopography, soil bulk density, soil and air moisture and temperature, and light were measured under the canopy, at the limit of the canopy and in the intercanopy. These variables were correlated with the litter and plant frequencies associated with the fertility islands. P. flexuosa canopy and litter understorey tend to maintain more soil moisture compared with the intercanopy, by reducing soil and air temperature and by increasing air moisture. This increases the frequency of Dyksterhuis’ decreaser species. Under L. divaricata the canopy effect is not as effective as that of P. flexuosa and understorey plant response is not significative. |
| publisher |
Facultad de Ciencias Agropecuarias |
| publishDate |
2021 |
| url |
https://revistas.unc.edu.ar/index.php/agris/article/view/30529 |
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2024-09-03T22:16:31Z |
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