Variaciones altitudinales en el intercambio de iones H y Al junto con el contenido de Fe en el suelo de la Amazonia

Singla, Ankit; Bautista, Gabriela; Mátyás, Bence; Serrano, Vanessa; Arteaga, Juan Francisco Morales; Proaño, Renato Sánchez; Velásquez, Rubén Darío Bracho; Ramírez-Cando, Lenin

doi:10.17163/lgr.n28.2018.03

Cited by 3 publications

(4 citation statements)

References 20 publications

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“…to 1000 m.a.s.l.) are comparable with a prior study performed in the same region (Singla et al, 2018), in which the authors report a decrease in iron content for lower laying areas. The main difference between our assessment relative Singla and colleagues' results is that they observed a radical decrease in iron content above 1000 m.a.s.l., while we found greater iron concentrations at this altitude.…”

Section: Resultssupporting

confidence: 90%

“…Soil moisture content was determined gravimetrically; drying the soil samples at 105°C for 24 h and weighing the mass loss. We measured allophane using 10.0 ± 0.5 g soil/water (1:2, w/w), soil/water plus 20. mL 1.0 M NaF, soil/water (1:2.5, w/w) + 25 mL 1.0 M NaF, soil/water (1:2.5, w/w) + 25 mL 0.50 M NaF, as described by Singla et al (2018).…”

Section: Determination Of Soil Propertiesmentioning

confidence: 99%

“…We determined total iron (all ionic forms) according to modified Blakemore 1981 method described in Singla et al, 2018. Briefly, 50 mL of ammonium oxalate monohydrate (Spectrum…”

Section: Determination Of Soil Propertiesmentioning

confidence: 99%

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Differences in total iron content at various altitudes of Amazonian Andes soil in Ecuador

Mendoza¹,

Guananga

Melendez

et al. 2020

F1000Res

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Although iron is not contained by chlorophyll, it is indispensable for plants as it plays an essential role in the biosynthesis of chlorophyll. It is a component of many important plant enzyme systems, e.g. cytochrome oxidase, which is responsible for electron transport. Therefore, examining iron content of soils, particularly ionic forms of iron (Fe2+ and Fe3+) is important for fruit growers. In this article, we disclose the total iron content determined in soils (Hyperalic Alisol soil) at three altitudes of Amazonian rainforest in Ecuador. We examine how different altitudes impact the pH and total iron content in the selected study area. We found that total iron content significantly decreases (R2=0.966) at lower altitudes. For future studies, the authors recommend that along with Fe ion content one should determine calcium, microbial biomass, and microbial activity to better understand iron mobility and dynamics of iron uptake in the area.

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Section: Resultssupporting

confidence: 90%

Section: Determination Of Soil Propertiesmentioning

confidence: 99%

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Differences in total iron content at various altitudes of Amazonian Andes soil in Ecuador

Mendoza¹,

Guananga

Melendez

et al. 2020

F1000Res

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“…The most important natural resources are soil (Bautista et al, 2018;Mátyás et al, 2018;Singla et al, 2018;Sukiasyan & Kirakosyan, 2020), air (DRC, 2020), and water (Bersosa et al, 2019). Therefore, protection of natural resources and their rational use are essential to provide sustainable environmental and agricultural management practices (Mátyás et al, 2020;Sándor et al, 2020;Shomana et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Determination of field capacity in the Chibunga and Guano rivers micro-basins

et al. 2021

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Background: The micro-basins of the Chibunga and Guano rivers are located within the sub-basin of the Chambo River, which starts at the thaw of the Chimborazo, crosses the cities of Guano and Riobamba, and ends in the Chambo River. These rivers are considered fluvial hydrological forces and geological limits of the aquifer, located in this sub-basin. For this reason, our investigation addressed the field capacity in the micro-basins of Chibunga and Guano rivers, to determine the maximum retention potential, i.e., the saturation of water in the soil. Methods: We investigated the change of precipitation to runoff through the correlations between the characteristics of the soil and its vegetation. We applied the Curve Number (CN) method introduced by the United States Soil Conservation Service (USSCS); this represents an empirical model, which relates the vegetation cover to the geological and topographic conditions of the soil. Along with the geographic information system, the model allows to represent the variation of runoffs for each micro-basin, according to the different land use categories, over the time frame from 2010 to 2014. Results: We found that the maximum retention potential is directly affected by CN values, representing the runoff potential. Highest values of 100 belong to the wetlands, urban area, snow, and water, as rain is converted directly into runoff, being impervious areas. The Guano river micro-basin possesses clay soil with CN of 78, the soil texture for eucalyptus forest is clay loam, and its CN value, 46, is the lowest of the data set. Knowledge of field capacity allows to properly evaluate the storage capacity of soil and water conservation. Conclusions: Results of this work will be useful in the quantification of the water balance, to determine the water supply and demand.

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Differences in the ratio of soil microbial biomass carbon (MBC) and soil organic carbon (SOC) at various altitudes of Hyperalic Alisol in the Amazon region of Ecuador

et al. 2020

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Protecting soil fertility represents a fundamental effort of sustainable development. In this study we investigate how different altitudes affect soil microbial biomass carbon (MBC) and soil organic carbon (SOC), and their ratio, MBC/SOC in Hyperalic Alisol. MBC and SOC are well established and widely accepted microbial quotients in soil science. Our work hypothesis was that a decrease in MBC and SOC should be observed at higher altitudes. This initial assumption has been verified by our measurements, being attributed to the increase in MBC and SOC at low altitudes. Our approach should contribute to the better understanding of MBC and SOC distribution in soil and changes in MBC/SOC at various altitudes in the region.

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Variaciones altitudinales en el intercambio de iones H y Al junto con el contenido de Fe en el suelo de la Amazonia

Cited by 3 publications

References 20 publications

Differences in total iron content at various altitudes of Amazonian Andes soil in Ecuador

Differences in total iron content at various altitudes of Amazonian Andes soil in Ecuador

Determination of field capacity in the Chibunga and Guano rivers micro-basins

Differences in the ratio of soil microbial biomass carbon (MBC) and soil organic carbon (SOC) at various altitudes of Hyperalic Alisol in the Amazon region of Ecuador

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