Realistic soil C sink estimate in dry forests of western Argentina based on humic substance content

Abril, Adriana; Merlo, Carolina; Noe, Laura

doi:10.1016/j.jaridenv.2012.12.009

Cited by 24 publications

(20 citation statements)

References 39 publications

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“…Data suggest that the growing agriculture anthropization in this specific arid environment does not promote the humification process. Similar conclusions were drawn by Abril et al (2013) in forest dry environments, although in that case the amounts of humic substances were more high, accounting for about 20% of soil organic matter. The organic inputs from agriculture enlarged the more labile not humified fraction (C noHum ), made up of highly mineralizable compounds (carbohydrate, polysaccharides, phospholipids, etc) (Wander, 2004) with a rapid turnover between 1 and 5 years (Jenkinson and Ladd, 1981;Jenkinson and Parry, 1989;McGill et al, 1986;Von Lützow et al, 2007).…”

Section: Discussionsupporting

confidence: 83%

“…The total level of humification HU does not furnish further information, as from 60% to 80% of C org was not extractable in alkaline medium. The generally high values of HU are mainly due to the humin fraction, a pool of organic carbon recalcitrant to microbial attack, whereas the humic and fulvic fraction content, which realistically reflects dynamics of C sequestration in soil (Abril et al, 2013) seems to be insensitive to the organic inputs due to agricultural management.…”

Section: Discussionmentioning

confidence: 99%

“…We wish to stress that, as the terraced fields were not initially designed for experimental purposes, each site corresponded to a different time of cultivation (5, 15, 20, 35 and 65 years) and was considered as unique situation (Hurlbert, 1984 sensu), similarly to the sampling strategy recently adopted by other authors (i.e. Abril et al, 2013). Soil samples were air-dried and passed through a 2 mm-sieve for the laboratory analysis.…”

Section: Sampling Area and Experimental Designmentioning

confidence: 99%

See 2 more Smart Citations

Evolution of organic carbon pools and microbial diversity in hyperarid anthropogenic soils

Camilli

Dell’Abate

Mocali

et al. 2016

Journal of Arid Environments

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Section: Sampling Area and Experimental Designmentioning

confidence: 99%

See 1 more Smart Citation

Evolution of organic carbon pools and microbial diversity in hyperarid anthropogenic soils

Camilli

Dell’Abate

Mocali

et al. 2016

Journal of Arid Environments

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“…From the alkaline extract, the humic (HA) and fulvic acids (FA) were separate by acid precipitation (H 2 SO 4 ) (Marinari et al 2010). Non-humic substances (NHS) were calculated as the difference between OM and HS (Abril et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Multidisciplinary approach to assess the water self-depuration characteristics of Suquía River (Córdoba, Argentina)

Merlo

Abril

2014

Rev. Chil. de Hist. Nat.

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Background: We analyzed the following characteristics of water self-depuration capacity along a polluted river (Suquía River) in Argentina: (a) abundance of microbial metabolic groups, (b) cover and type of vegetation, and (c) type and concentration of soil and sediment humic substances. The objective was to establish the modifications of water self-depuration characteristics of the polluted sites in comparison to a reference site in order to provide basic data for ecological restoration programs. Five samples of riparian soil, water, and sediments were collected at a reference site and five polluted sites during low-and high-flow water periods. In each site the vegetation type and soil cover were recorded. In all samples the abundance of ammonifiers, nitrate reducers, sulfate reducers, cellulolytic microorganisms, aerobic heterotrophs, and fermenters was measured. Besides, soil and sediment organic matter and humic and fulvic acids content were analyzed. Results: Our results showed that all sites differed in their water self-depuration characteristics with respect to the reference site and that these variations are due to a combination of natural and anthropic factors. The Suquía River presents a great heterogeneity of water self-depuration characteristics but it does not achieve a mitigation of the anthropogenic impact produced by Córdoba city. Conclusions: We concluded that restoration actions in lotic ecosystems should be adapted for each river sector.

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“…La cuantificación del stock en cada uno de los reservorios varía fuertemente en función de la metodología utilizada. Específicamente, los bosques chaqueños contienen un stock de C por hectárea entre 28.6 y 69.8 t en la biomasa vegetal aérea Irizar, 2009;Manrique et al, 2011;Baccini et al, 2012), entre 9 y 12.95 t en la biomasa vegetal subterránea (Manrique et al, 2011;Baumann et al, 2017), 5.45 t en la biomasa muerta y entre 2.1 y 3.85 t en la broza (Abril & Bucher, 2001;Abril et al, 2005;Manrique et al, 2011;Abril et al, 2013). En el caso del suelo, el primer metro contiene, en promedio, 114 t de C (Villarino et al, 2017), casi el doble de lo reportado por para la biomasa total.…”

Section: Dinámica Del C Controles Ambientales Y Antropogénicos De Lounclassified

Silvopastoral systems of the Chaco forests: Effects of trees on grass growth

Baldassini

Piñeiro

Paruelo

2018

Journal of Arid Environments

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A todos los que me acompañaron y ayudaron en este camino, principalmete a José por todo lo que me enseñó y me enseña dia a dia. Por encontrar la forma de bancarme las veces que estuve sin beca, eternamente agradecido… A Josefina, mi compañera de vida, por el apoyo constante e inconmensurable. Gracias por tanto, gracias por todo lo vivido, gracias por todo lo que vendrá… A mi familia, por estar siempre… Al LART y al LabFo, por la compañía y el inmejorable lugar de trabajo… A Lola, por hacer que todo sea posible… A Cami B., Tamara P., HD, Sebu A., Cristian D., Félix M., Fede P. y Juan C. por el apoyo brindado durante el ensayo de campo y los muestreos, y por bancarse los intensos calores del Chaco salteño… A Andorrana SA y Anta Del Dorado SA, por permitirme instalar el experimento en sus campos… , por ayudarme de una u otra forma… A Gerva y Marcos, por contribuir y estar cuando lo necesité… Al Depto. de Métodos Cuantitativos y a Susana P., por abrirme las puertas… A la UBA y al CONICET, por contribuir fuertemente en mi formación… A todos los que hicieron posible esta tesis...A todos y a cada uno, ¡muchas gracias! v Declaro que el material incluido en esta tesis es, a mi mejor saber y entender, original producto de mi propio trabajo (salvo en la medida en que se identifique explícitamente las contribuciones de otros), y que este material no lo he presentado, en forma parcial o total, como una tesis en ésta u otra institución.

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Realistic soil C sink estimate in dry forests of western Argentina based on humic substance content

Cited by 24 publications

References 39 publications

Evolution of organic carbon pools and microbial diversity in hyperarid anthropogenic soils

Evolution of organic carbon pools and microbial diversity in hyperarid anthropogenic soils

Multidisciplinary approach to assess the water self-depuration characteristics of Suquía River (Córdoba, Argentina)

Silvopastoral systems of the Chaco forests: Effects of trees on grass growth

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