Soil Organic Carbon Stocks and Soil Respiration in Tropical Secondary Forests in Southern Mexico

Aryal, Deb Raj; Jong, Bernardus Hendricus jozeph De; Mendoza‐Vega, Jorge; Ochoa-Gaona, Susana; Esparza-Olguín, Ligia G.

doi:10.1007/978-3-319-43394-3_14

Cited by 20 publications

(11 citation statements)

References 31 publications

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“…The lower CO 2 fluxes at the abandoned pasture site were related to differences in soil and vegetation characteristics as indicated by lower soil C and N concentrations and by lower stem number and basal area (Table 1). Aryal et al (2017) also related higher soil respiration rates in Mexican mature forests and secondary forests (>35 yr) compared with younger secondary forests (<20 yr) to differences in substrate availability and microclimate conditions created by the vegetation. Root density and root biomass also vary over the course of forest succession, which contributes to differences in soil respiration rates between forest stages (e.g., Yan et al, 2006).…”

Section: Discussionmentioning

confidence: 98%

Seasonality and Budgets of Soil Greenhouse Gas Emissions From a Tropical Dry Forest Successional Gradient in Costa Rica

2020

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Limited information on greenhouse gas emissions from tropical dry forest soils still hinders the assessment of the sources/sinks from this ecosystem and their contribution at global scales. Particularly, rewetting events after the dry season can have a significant effect on soil biogeochemical processes and associated exchange of greenhouse gases. This study evaluated the temporal variation and annual fluxes of CO 2 , N 2 O, and CH 4 from soils in a tropical dry forest successional gradient. After a prolonged drought of 5 months, large emissions pulses of CO 2 and N 2 O were observed at all sites following first rain events, caused by the "Birch effect," with a significant effect on the net ecosystem exchange and the annual emissions budget. Annual CO 2 emissions were greatest for the young forest (8,556 kg C ha −1 yr −1) followed by the older forest (7,420 kg C ha −1 yr −1) and the abandoned pasture (7,224 kg C ha −1 yr −1). Annual emissions of N 2 O were greatest for the forest sites (0.39 and 0.43 kg N ha −1 yr −1) and least in the abandoned pasture (0.09 kg N ha −1 yr −1). CH 4 uptake was greatest in the older forest (−2.61 kg C ha −1 yr −1) followed by the abandoned pasture (−0.69 kg C ha −1 yr −1) and the young forest (−0.58 kg C ha −1 yr −1). Fluxes were mainly influenced by soil moisture, microbial biomass, and soil nitrate and ammonium concentrations. Annual CO 2 and N 2 O soil fluxes of tropical dry forests in this study and others from the literature were much lower than the annual fluxes in wetter tropical forests. Conversely, tropical dry forests and abandoned pastures are on average stronger sinks for CH 4 than wetter tropical forests.

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Section: Discussionmentioning

confidence: 98%

Seasonality and Budgets of Soil Greenhouse Gas Emissions From a Tropical Dry Forest Successional Gradient in Costa Rica

2020

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“…Aryal et al . (2017) reported that the soil CO 2 fluxes were correlated with the carbonate content of the soil and not with soil organic matter, indicating that the abiotic carbon exchange could significantly influence soil CO 2 fluxes. However, we did not separate the abiotic fluxes in this study.…”

Section: Discussionmentioning

confidence: 99%

“…Recent estimates indicate a net release of C between 0.42 and 1.60 Pg/year in the tropics because of the deforestation, of which, 0.1–0.3 Pg is because of the loss of soil organic matter (Xu & Qi, 2001; Zimmermann et al ., 2009). Besides, the release of C occurs in a context of high spatial and temporal variability attributed to the structure and composition of species, age, management practices, climatic and edaphic conditions (Villanueva‐López et al ., 2016a, 2016b; Aryal et al ., 2017; Nocentini & Monti, 2019).…”

Section: Introductionmentioning

confidence: 99%

Diurnal and seasonal variations on soil CO₂ fluxes in tropical silvopastoral systems

Adame‐Castro

Aryal

Villanueva‐López

et al. 2020

Soil Use and Management

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Soil respiration is a very important component of the global carbon cycle, considered as the second most important carbon (C) flux to the atmosphere and is directly affected by global warming (Xu & Qi, 2001; Bond-Lamberty et al., 2004; Arredondo et al., 2018). It is defined as the sum of autotrophic respiration (i.e. roots and fungi) and heterotrophic respiration (i.e. soil microorganisms that break down organic matter and soil fauna) and is influenced by environmental factors, such as soil and ambient temperature, water content and photosynthetically active radiation (Raich & Schlesinger, 1992; Zimmermann et al., 2009; Cueva et al., 2016). Approximately 30% of the emissions of carbon dioxide (CO 2) come from changes in land use, particularly from deforestation to establish pastures for extensive livestock production (Schimel et al., 2001; Villanueva, 2014). In Mexico, it is estimated that 30%-50% of soil organic carbon

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“…Lo anterior puede atribuirse a los siguientes factores: i) el carbono orgánico del suelo es un reservorio más estable y es afectado, lentamente, por el cambio de uso suelo, patrones que también se han observado en otros estudios realizados en el sur-sureste mexicano (Orihuela-Belmonte et al, 2013;Aryal et al, 2015, Villanueva-López et al, 2016Aryal et al, 2017).…”

Section: Abundancia De Los áRbolesunclassified

Potencial de almacenamiento de carbono en áreas forestales en un sistema ganadero

Aryal

Castro

García

et al. 2018

RMCF

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El rápido aumento de la producción ganadera ha provocado impactos ambientales, como la deforestación, la pérdida de biodiversidad, la degradación del suelo y las emisiones de gases de efecto invernadero (GEI). En el estado de Chiapas, dichas emisiones han aumentado especialmente por la conversión de tierras forestales a pastizales y la fermentación entérica del ganado. La remoción de CO2 atmosférico por actividades forestales y agroforestales dentro de las unidades de producción ganadera puede reducirlas significativamente. El principal objetivo de esta investigación fue conocer el potencial de almacenamiento de carbono en áreas forestales, para conocer su contribución en la mitigación de GEI dentro de una unidad de producción ganadera en Villaflores, Chiapas. Se establecieron 12 parcelas de muestreo en áreas forestales y potreros para evaluar el carbono en biomasa viva aérea, biomasa de raíces, hojarasca, madera muerta y carbono orgánico del suelo. El promedio de almacenamiento de carbono en áreas forestales fue 144.45 Mg C ha-1 comparado con 75.95 Mg C ha-1 en los potreros. El almacén de carbono en biomasa viva, como se esperaba fue más alto en áreas forestales que en potreros, pero no hubo diferencia significativa en el reservorio de carbono orgánico del suelo. El rancho en estudio posee 24.7 ha (40 % de la superficie) de áreas forestales con alta diversidad de especies arbóreas, y si se decidiera deforestar para establecer pasturas contribuiría con 6 353.95 Mg de emisiones de CO2. Los resultados permitirán estimar la remoción anual de carbono con futuras remediciones.

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Soil Organic Carbon Stocks and Soil Respiration in Tropical Secondary Forests in Southern Mexico

Cited by 20 publications

References 31 publications

Seasonality and Budgets of Soil Greenhouse Gas Emissions From a Tropical Dry Forest Successional Gradient in Costa Rica

Seasonality and Budgets of Soil Greenhouse Gas Emissions From a Tropical Dry Forest Successional Gradient in Costa Rica

Diurnal and seasonal variations on soil CO₂ fluxes in tropical silvopastoral systems

Potencial de almacenamiento de carbono en áreas forestales en un sistema ganadero

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Soil Organic Carbon Stocks and Soil Respiration in Tropical Secondary Forests in Southern Mexico

Cited by 20 publications

References 31 publications

Seasonality and Budgets of Soil Greenhouse Gas Emissions From a Tropical Dry Forest Successional Gradient in Costa Rica

Seasonality and Budgets of Soil Greenhouse Gas Emissions From a Tropical Dry Forest Successional Gradient in Costa Rica

Diurnal and seasonal variations on soil CO2 fluxes in tropical silvopastoral systems

Potencial de almacenamiento de carbono en áreas forestales en un sistema ganadero

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Diurnal and seasonal variations on soil CO₂ fluxes in tropical silvopastoral systems