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5 resultados encontrados para: TEMA: Suelos calcáreos
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1.
- Capítulo de libro con arbitraje
*Solicítelo con su bibliotecario/a
Soil organic carbon stocks and soil respiration in tropical secondary forests in southern Mexico
Aryal, Deb Raj (autor) ; De Jong, Bernardus Hendricus Jozeph (autor) ; Mendoza Vega, Jorge (autor) ; Ochoa Gaona, Susana (autora) ; Esparza Olguín, Ligia Guadalupe (autora) ;
Disponible en línea
Contenido en: Global soil security / Damien J. Field, Cristine L. S. Morgan, Alex B. McBratney, editors Cham, Switzerland, Zug : Springer International Publishing Switzerland, 2017 p. 153-165 ISBN:978-3-319-43394-3
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

The soil CO2 efflux is recognized as one of the largest fluxes in the global carbon cycle, and small changes in the magnitude of soil respiration could have a large consequence on the concentration of CO2 in the atmosphere. In this study, we analyzed the soil organic carbon (SOC) stocks and CO2 efflux from soil respiration in a tropical secondary forest succession grown after abandonment of swidden agriculture in Southern Mexico. The study was conducted in a chronosequence of semi-evergreen tropical secondary and primary forests in the southern part of Yucatan Peninsula, Mexico. We collected soil samples (up to 30 cm depth) from 32 carbon monitoring plots and analyzed these for physical and chemical soil properties. Soil respiration measurements were carried out by using PP systems EGM-4 (an infrared gas analyzer). Analysis of variance (ANOVA), correlation, and regression was performed to test differences between forest age groups as the independent variable and soil respiration, organic as well as inorganic carbon in soil. Contrary to the hypothesis, SOC in the mineral soil horizon did not increase with forest age. Soil CO2 efflux did not correlate to soil organic carbon, it rather correlated to carbonate concentration in the soil. Higher CO2 efflux in carbonate rich soils can be explained probably by the faster decomposition but the slower ultimate mixing of organic matter in mineral soils of carbonate origin. However, it needs further investigation in separating soil CO2 efflux into autotrophic, heterotrophic, and abiotic fluxes to better understand the role of carbonate soils in atmospheric CO2 exchange.


2.
- Artículo con arbitraje
The influence of land use and fallow period on the properties of two calcareous soils in the humid tropics of southern Mexico
Mendoza Vega, Jorge ; Messing, Ingmar (coaut.) ;
Contenido en: Catena Vol. 60, no. 3 (March 2005), p. 279–292 ISSN: 0341-8162
Resumen en: Inglés |
Resumen en inglés

Calcareous soils are common in the humid tropics of Mexico, but little is known about their productivity and resistance to changes in land use. The influence of land use and duration of fallow on physical and chemical properties were investigated in (a) a loamy Rendzina (at Site A) rich in organic matter and limited in depth by calcareous gravel, and (b) a deeper Calcaric Phaeozem (at Site B) with a more clayey texture throughout. Plots at different successional stages within farmers' shifting cultivation systems were selected on both soils: cropland/young fallow (zero years fallow length), shrub-fallow and tree-fallow at Site A, and cropland/young fallow and forest at Site B. Changes in soil properties suggested a process of recovery with fallow length, in which organic matter, total N and CEC increased with time. The increase in organic matter was remarkably large, on average 0.5–0.6% per year. The Rendzina contained more organic matter than the Calcaric Phaeozem, probably because of its greater carbonate content, which is presumed to protect organic matter against decomposition. The differences in soil properties were mostly greater over time than between treatments.


3.
Artículo
*En hemeroteca, SIBE-San Cristóbal
Soil N and P dynamics in two secondary tropical dry forests after fertilization
Solís, Enrique ; Campo, Julio (coaut.) ;
Contenido en: Forest Ecology and Management Vol. 195, no. 3 (July 2004), p. 409-418 ISSN: 0378-1127
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
B2869 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal

4.
Artículo
Soil fertility during shifting cultivation in the tropical Karst soils of Yucatan
Weisbach, Carina ; Tiessen, Holm (coaut.) ; Jiménez Osornio, Juan José María (coaut.) ;
Clasificación: AR Y/631.42 / W4
Contenido en: Agronomie Vol. 22, no. 3 (2002), p. 253-263 ISSN: 1051-0761
Bibliotecas: Campeche
Cerrar
SIBE Campeche
ECO040000326 (Disponible)
Disponibles para prestamo: 1

5.
Libro
Calcareous soils: report of the FAO/UNDP regional seminar on reclamation and management of calcareous soils
FAO - UNDP Regional Seminar on Reclamation and Management of Calcareous Soils (1ʹ : 1972 : El Cairo, Egipto) ;
Rome, Italy : Food and Agriculture Organization of the United Nations , 1973
Clasificación: 631.4 / F3/21
Bibliotecas: Chetumal
Cerrar
SIBE Chetumal
ECO030003873 (Disponible)
Disponibles para prestamo: 1