Papers by Esteban Baridon
International Journal of Plant & Soil Science
Aims: The objective of the present work was to evaluate the annual evolution of the electrical co... more Aims: The objective of the present work was to evaluate the annual evolution of the electrical conductivity and the reaction of the soil, in a Natraqualf of the northwest of the Argentine Pampean Plain, treated with a subsoiler and sowing of wheatgrass. Methodology: Four treatments were established in plots of 400 m2: natural pasture; pasture with wheatgrass (Thynopirum ponticum); natural pasture with subsoiling and wheatgrass pasture with subsoiling. Soil samples were extracted at depths of 0-15 cm, 15-30 cm and 30-45 cm, in January, April, July and October. The edaphic parameters analyzed were: pH, electrical conductivity and bulk density. In October, the dry matter production was determined by treatment. The monthly variation of the depth of the groundwater and its chemical characteristics was measured. Results: The depth of the water table fluctuated between 1.30 m and 0.70 m. The implantation of wheatgrass combined with subsoiling produced a decrease in electrical conductivity ...
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International Journal of Plant & Soil Science, 2020
The quality indicators are suitable tools to determine the state of the soil and the effects of d... more The quality indicators are suitable tools to determine the state of the soil and the effects of different uses and management on it. The aim of the present work was to evaluate the quality of sub-tropical Argiudolls and Hapludolls subjected to different uses in Formosa, using a minimum set of indicators (MSI). Changes in soil use and the application of management techniques to maximize agricultural production are frequent in the world. In Formosa, Argentina, improvements in the productive infrastructure and low market value of the land, promote that these changes occur faster than the monitoring of the ones. The effects of 25 years of continuous agricultural use, extensive livestock in implanted pastures and fruit crops, in relation to the native forest were analyzed. The MSI consisted of five variables: total organic carbon, particulate organic carbon, total nitrogen, structural stability and bulk density. The baseline of the indicators was determined and threshold values were esta...
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Forest Systems, 1999
El objetivo de este trabajo fue comparar distintos niveles de procesos pedogeneticos entre sitios... more El objetivo de este trabajo fue comparar distintos niveles de procesos pedogeneticos entre sitios con una plantacion de Eucalyptus camaldulensis y otros con vegetacion herbacea naturalizada. El experimento se ubico en la cubierta del vertedero de residuos solidos urbanos de Villa Dominico, Buenos Aires, Argentina, (34 o 40’ 50’’ S; 58o 18’ 45’’W; 4 m snm). A las edades de seis anos de la plantacion y 14 del vertedero de residuos solidos urbanos, fueron realizadas las siguientes determinaciones: 1- Caracterizacion fisico quimica de micrositios analogos con influencia del arbol y del pastizal naturalizado; 2- Biomasa radicular de arboles y tapiz herbaceo naturalizado; 3- Evaluacion cualitativa de microorganismos rizosfericos y 4- Desarrollo y estado sanitario de los arboles. Los resultados mostraron capacidad de soporte biologico producido por una marcada evolucion pedogenetica antropica. Se registraron horizontes culturales dentro de la cubierta del vertedero de residuos solidos urba...
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International Soil and Water Conservation Research, 2014
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SPIE Proceedings, 1998
Discrimination of vegetation canopies for production of forestry and land use thematic cartograph... more Discrimination of vegetation canopies for production of forestry and land use thematic cartography from multispectral satellite images requires high spectral and spatial resolutions, usually not available in this type of images. A methodology is proposed to improve a vegetation oriented classification from a Landsat TM image by adding texture information obtained from panchromatic aerial photographs. Multispectral classification was used to create a mask of the forested areas that was applied over the aerial mosaic composition. Further vegetation classes were defined based on textural differences, and eight texture features derived from the gray level co-occurrence matrix, three textural energy indicators and a factor of edgeness were tested. A selection of optimal features and textural parameters such as number of gray levels, window size and distance between pixels was performed using principal components and stepwise discriminant analysis techniques with a set of representative samples from each class. After a texture segmentation of panchromatic aerial imagery using optimal parameters and features was completed, a post-classification process based on morphological operations was applied to avoid the neighboring effect generated by the texture analysis. Overall accuracy in the identification of texture classes using the four best feathers was 86.6%, while the 88% of accuracy was achieved in the classification of the complete image. This method is useful for discrimination of certain vegetation classes with low spectral separability and arranged in small forest units, increasing the classification detail in those areas of particular interest.
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Quebracho. Revista de …, 2005
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Ciencia e investigación agraria, 2008
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Papers by Esteban Baridon