Artículo

Villalobos-Vega, R.; Goldstein, G.; Haridasan, M.; Franco, A.C.; Miralles-Wilhelm, F.; Scholz, F.G.; Bucci, S.J. "Leaf litter manipulations alter soil physicochemical properties and tree growth in a Neotropical savanna" (2011) Plant and Soil. 346(1):385-397
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Abstract:

Aim: This study was aimed to assess the role that leaf litter play in nutrient cycling, nutrient soil availability and ecosystem processes in an oligotrophic tropical savanna. Methods: A four year experiment was performed in a Neotropical savanna from the Brazilian plateau (cerrado), in which litter levels were modified, and the resulting changes in biophysical and chemical soil properties were studied. Changes in organic matter decomposition, soil respiration and stem growth of the six most common tree species were also monitored. Results: Compared to litter removal plots, double litter plots had lower maximum soil temperature and higher soil water content, and litter decomposition rates in one of three species studied, consistent with higher soil respiration rates observed in this treatment. With the exception of Ca, there were no significant differences in nutrients between the removal, natural and double litter plots, even though most nutrients tended to increase in the double litter plots by the end of the experimental period, while in the control plots nutrient levels remained relatively constant. Of the six tree species used for growth analysis, only one, Sclerolobium paniculatum, a fast growing species with shallow roots, had a significant increase in stem growth due to litter addition. Conclusion: Preliminary results over four years indicate that litter removal and addition resulted in some significant changes and tendencies that indicate that litter is effectively altering ecosystem processes. The information obtained also suggest that nutrient cycling in plots with natural litter levels (control plots) was in a closed loop; most nutrients released by litter decomposition and mineralization were absorbed and reutilized immediately by the plants, thus minimizing nutrient leakage outside the system. © 2011 Springer Science+Business Media B.V.

Registro:

Documento: Artículo
Título:Leaf litter manipulations alter soil physicochemical properties and tree growth in a Neotropical savanna
Autor:Villalobos-Vega, R.; Goldstein, G.; Haridasan, M.; Franco, A.C.; Miralles-Wilhelm, F.; Scholz, F.G.; Bucci, S.J.
Filiación:Department of Biology, University of Miami, 1301Memorial Drive, Coral Gables, FL 33124, United States
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Laboratorio de Ecología Funcional, Departamento de Ecología, Genetica y Evolucion, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Nuñez, Buenos Aires, Argentina
Departamento de Ecologia, Universidade de Brasília, Caixa Postal 04457, Brasília DF 70904-970, Brazil
Departamento de Botanica, Universidade de Brasília, Caixa Postal 04357, Brasília DF 70904-970, Brazil
Consejo Nacional de Investigaciones Científicas y Técnicas, Departamento de Biología, Universidad Nacional de La Patagonia San Juan Bosco, 9000 Comodoro Rivadavia, Argentina
Department of Civil and Environmental Engineering, Florida International University, 10555 W. Flagler Street, EC 3680, Miami, FL 33174, United States
Palabras clave:Litter decomposition rates; Nutrient cycling; Soil fertility; Soil respiration; Tree growth; Tropical savannas; biophysics; cerrado; decomposition; experimental study; growth rate; leaf litter; Neotropical Region; nutrient availability; nutrient cycling; oligotrophic environment; physicochemical property; root system; savanna; soil fertility; soil nutrient; soil organic matter; soil respiration; soil temperature; stem; Brazil; Sclerolobium paniculatum
Año:2011
Volumen:346
Número:1
Página de inicio:385
Página de fin:397
DOI: http://dx.doi.org/10.1007/s11104-011-0860-5
Título revista:Plant and Soil
Título revista abreviado:Plant Soil
ISSN:0032079X
CODEN:PLSOA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0032079X_v346_n1_p385_VillalobosVega

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Citas:

---------- APA ----------
Villalobos-Vega, R., Goldstein, G., Haridasan, M., Franco, A.C., Miralles-Wilhelm, F., Scholz, F.G. & Bucci, S.J. (2011) . Leaf litter manipulations alter soil physicochemical properties and tree growth in a Neotropical savanna. Plant and Soil, 346(1), 385-397.
http://dx.doi.org/10.1007/s11104-011-0860-5
---------- CHICAGO ----------
Villalobos-Vega, R., Goldstein, G., Haridasan, M., Franco, A.C., Miralles-Wilhelm, F., Scholz, F.G., et al. "Leaf litter manipulations alter soil physicochemical properties and tree growth in a Neotropical savanna" . Plant and Soil 346, no. 1 (2011) : 385-397.
http://dx.doi.org/10.1007/s11104-011-0860-5
---------- MLA ----------
Villalobos-Vega, R., Goldstein, G., Haridasan, M., Franco, A.C., Miralles-Wilhelm, F., Scholz, F.G., et al. "Leaf litter manipulations alter soil physicochemical properties and tree growth in a Neotropical savanna" . Plant and Soil, vol. 346, no. 1, 2011, pp. 385-397.
http://dx.doi.org/10.1007/s11104-011-0860-5
---------- VANCOUVER ----------
Villalobos-Vega, R., Goldstein, G., Haridasan, M., Franco, A.C., Miralles-Wilhelm, F., Scholz, F.G., et al. Leaf litter manipulations alter soil physicochemical properties and tree growth in a Neotropical savanna. Plant Soil. 2011;346(1):385-397.
http://dx.doi.org/10.1007/s11104-011-0860-5