Estimation of organic carbon in paramo ecosystem soils in Colombia

Díaz, Joan Sebastián Gutiérrez; Delgado, Napoleón Ordoñez; Gamboa, Adriana Bolívar; Bunning, Sallly; Guevara, Mário; Medina, Erika; Olivera, Carolina; Olmedo, Guillermo Federico; Rodríguez, Lady Marcela; Sevilla, Víctor; Vargas, Rodrigo

doi:10.7818/ecos.1855

Cited by 7 publications

(4 citation statements)

References 34 publications

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“…Soil carbon change could be related to land conversions and activities over the Grasslands [47]. The results of lithologies of the intervened area and lower than the median of the intervened area are in concordance with other studies related to SOC on paramo region in Colombia where a positive asymmetry of 0.97 and kurtosis of 5.18, also estimated SOC values that oscillate in the range of 22 and 338 Mg/ha and medians of up to 180.52 Mg/ha are indicated [48]. Also, studies in the herbaceus páramo ecosystem of Ecuador showed values of SOC between 67-221 in the 0-30 cm soil profile and values of SOC between 32 and 179 Mg/ha in the 30-60 cm profile [49].…”

Section: Discussionsupporting

confidence: 90%

Evaluation of Soil Organic Carbon Storage of Atillo in the Ecuadorian Andean Wetlands

et al. 2022

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Identifying the SOC levels and revealing the potential of SOC storage of ecosystems difficult to sample and study are necessary contributions to the understanding of the global reserves of SOC. Wetlands store large amounts of SOC within their soils. They have an important role in water regulation and have great biological and floristic diversity. Therefore, this study aimed to assess the SOC stock in Atillo micro-watershed in the Ecuadorian Andean wetlands at two soil depths (0–30 cm and 30–60 cm below ground) and to assess the importance of the ecosystem and its conservation in favor of reducing emissions due to degradation processes. For that, we sampled the study zone with 101 composite samples of soil to obtain the SOC storage for each sample point in Mg/ha. A SOC estimation to evaluate its spatial distribution was performed using the geostatistical method Kriging. The results show a high storage capacity of the study zone with SOC values of 126 to 454 Mg/ha in the 0–30 cm soil profile and 148 to 350 Mg/ha in the 30–60 cm soil profile. The preservation and protection mechanisms of high SOC reserves should be taken into account to prevent the emission of CO2.

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Section: Discussionsupporting

confidence: 90%

Evaluation of Soil Organic Carbon Storage of Atillo in the Ecuadorian Andean Wetlands

et al. 2022

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“…Páramos are carbon sinks, storing larger carbon quantities per hectare than tropical forests in their soil organic layer, which can extend from 1 m depth to 9.4 m in some peatlands (Hofstede et al, 2014;Hribljan et al, 2017). How much soil organic carbon (SOC) is stored depends on the climatic conditions and the land use history of the páramo (Gutiérrez et al, 2020) and in Colombia, SOC values reported range between 22 and 338 tons per hectare in the first 30 cm of the soil profile (Gutiérrez et al, 2020). Estimates from Sumapaz indicates values of SOC of 188.2 ± 41.2 ton/ha in the first 25 cm of the soil profile (Montes-Pulido et al, 2017) and values between 119 and 397 tons per hectare (t/ha) in the first 40 cm has been reported in other páramos (Castañeda-Martín and Montes-Pulido, 2017).…”

Section: Physical Chemical and Biological Properties Of The Soilmentioning

confidence: 99%

Homeostatic Response to Three Years of Experimental Warming Suggests High Intrinsic Natural Resistance in the Páramos to Warming in the Short Term

et al. 2021

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Páramos, tropical alpine ecosystems, host one of the world’s most diverse alpine floras, account for the largest water reservoirs in the Andes, and some of the largest soil carbon pools worldwide. It is of global importance to understand the future of this extremely carbon-rich ecosystem in a warmer world and its role on global climate feedbacks. This study presents the result of the first in situ warming experiment in two Colombian páramos using Open-Top Chambers. We evaluated the response to warming of several ecosystem carbon balance-related processes, including decomposition, soil respiration, photosynthesis, plant productivity, and vegetation structure after 3 years of warming. We found that OTCs are an efficient warming method in the páramo, increasing mean air temperature by 1.7°C and mean daytime temperature by 3.4°C. The maximum air temperature differences between OTC and control was 23.1°C. Soil temperature increased only by 0.1°C. After 3 years of warming using 20 OTC (10 per páramo) in a randomized block design, we found no evidence that warming increased CO2 emissions from soil respiration, nor did it increase decomposition rate, photosynthesis or productivity in the two páramos studied. However, total C and N in the soil and vegetation structure are slowly changing as result of warming and changes are site dependent. In Sumapaz, shrubs, and graminoids cover increased in response to warming while in Matarredonda we observed an increase in lichen cover. Whether this change in vegetation might influence the carbon sequestration potential of the páramo needs to be further evaluated. Our results suggest that páramos ecosystems can resist an increase in temperature with no significant alteration of ecosystem carbon balance related processes in the short term. However, the long-term effect of warming could depend on the vegetation changes and how these changes alter the microbial soil composition and soil processes. The differential response among páramos suggest that the response to warming could be highly dependent on the initial conditions and therefore we urgently need more warming experiments in páramos to understand how specific site characteristics will affect their response to warming and their role in global climate feedbacks.

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“…SOC is one of the most important chemical properties related to soil fertility and climate regulation and the key to multiple functions in ecosystem services (Owusu et al, 2020). Global projects such as the FAO's Global Soil Organic Carbon Map (FAO and ITPS, 2018); national projects in Brazil (Gomes et al, 2019), Ghana (Owusu et al, 2020), and Cameroon (Silatsa et al, 2020); or regional projects in Andalusia, Spain (Armas et al, 2017), or in páramo ecosystem soils in Colombia (Gutierrez et al, 2020) have been some of the works that have estimated SOC (in its vertical or horizontal dimensions) from soil databases.…”

Section: Introductionmentioning

confidence: 99%

Improving the Latin America and Caribbean Soil Information System (SISLAC) database enhances its usability and scalability

Díaz-Guadarrama,

Varón-Ramírez,

Lizarazo

et al. 2024

Earth Syst. Sci. Data

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Abstract. Spatial soil databases can help model complex phenomena in which soils are a decisive factor – for example, evaluating agricultural potential or estimating carbon storage capacity. The Latin America and Caribbean Soil Information System, SISLAC, is a regional initiative promoted by the Food and Agriculture Organization's (FAO) Latin America and the Caribbean Soil Partnership to contribute to sustainable management of soil. SISLAC includes data from 49 084 soil profiles distributed unevenly across the continent, making it the region's largest soil database. In addition, there are other soil databases in the region with about 40 000 soil profiles that can be integrated into SISLAC and improve it. However, some problems hinder its usages, such as the quality of the data and their high dimensionality. The objective of this research is evaluate the quality of the SISLAC data and the other available soil databases to generate a new improved version that meets the minimum quality requirements to be used for different purposes or practical applications. The results show that 15 % of the existing soil profiles had an inaccurate description of the diagnostic horizons and 17 % of the additional profiles already existed in SISLAC; therefore, a total of 32 % of profiles were excluded for these two reasons. Further correction of an additional 4.5 % of existing inconsistencies improved overall data quality. The improved database consists of 66 746 profiles and is available for public use at https://doi.org/10.5281/zenodo.7876731 (Díaz-Guadarrama and Guevara, 2023). This revised version of SISLAC data offers the opportunity to generate information that helps decision-making on issues in which soils are a decisive factor. It can also be used to plan future soil surveys in areas with low density or where updated information is required.

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Estimation of organic carbon in paramo ecosystem soils in Colombia

Cited by 7 publications

References 34 publications

Evaluation of Soil Organic Carbon Storage of Atillo in the Ecuadorian Andean Wetlands

Evaluation of Soil Organic Carbon Storage of Atillo in the Ecuadorian Andean Wetlands

Homeostatic Response to Three Years of Experimental Warming Suggests High Intrinsic Natural Resistance in the Páramos to Warming in the Short Term

Improving the Latin America and Caribbean Soil Information System (SISLAC) database enhances its usability and scalability

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