Soil properties and storage of organic carbon in the land use pasture and forest

Soil is probably one of the natural resources most vulnerable to climate change. Composes most of the carbon stock in terrestrial ecosystems. The aims of this study were: to characterize the use of pastureland and native forest in two sites in El Oro province (Ecuador), based on their physical, chem...

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Main Authors: Salomón Barrezueta-Unda, Kelvin Velepucha-Cuenca, Luis Hurtado-Flores, Edwin Jaramillo-Aguilar
Format: Article
Language:English
Published: Universidad de Nariño 2019-12-01
Series:Revista de Ciencias Agrícolas
Subjects:
Online Access:https://revistas.udenar.edu.co/index.php/rfacia/article/view/5056/6355
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author Salomón Barrezueta-Unda
Kelvin Velepucha-Cuenca
Luis Hurtado-Flores
Edwin Jaramillo-Aguilar
author_facet Salomón Barrezueta-Unda
Kelvin Velepucha-Cuenca
Luis Hurtado-Flores
Edwin Jaramillo-Aguilar
author_sort Salomón Barrezueta-Unda
collection DOAJ
description Soil is probably one of the natural resources most vulnerable to climate change. Composes most of the carbon stock in terrestrial ecosystems. The aims of this study were: to characterize the use of pastureland and native forest in two sites in El Oro province (Ecuador), based on their physical, chemical, and biological properties, and to compare the Soil Organic Carbon (SOC) stock at three depths. For this purpose, plots were established in Brachiaria sp pastures and native forests in the coastal area of Machala, Santa Inés site (SI), and the mountains of Chilla, Cune site (CN). Soil sampling was done at three depths (C1=0-10cm; C2=10-20cm; C3= 20-3 cm). The SI soils showed significance (p-value<0,05) among the stored SOC layers. The highest stored SOC value was for SI forest (C1, 36,30megagrams-Mg C ha-1), in an alkaline pH and clay loam texture. In CN soils, stored COS revealed no significance between layers, and values ranged from 27,64Mg ha-1(C1, CNforest) to 35,01 Mg C ha-1 (C3, CNpasture), in an acidic pH, sandy loam texture and high levels of Fe (761,71-938,34 mg kg-1). Soil properties play an important role in stored SOC levels; therefore, sequestration of SOC must be considered to develop optimal pasture management.
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spelling doaj.art-0b51c01b04b840e4962701414cf1e6622022-12-21T23:45:40ZengUniversidad de NariñoRevista de Ciencias Agrícolas0120-01352256-22732019-12-013623145https://doi.org/10.22267/rcia.193602.116Soil properties and storage of organic carbon in the land use pasture and forestSalomón Barrezueta-Unda0Kelvin Velepucha-Cuenca1Luis Hurtado-Flores2Edwin Jaramillo-Aguilar3Universidad Técnica de MachalaUniversidad Técnica de MachalaUniversidad Técnica de MachalaUniversidad Técnica de MachalaSoil is probably one of the natural resources most vulnerable to climate change. Composes most of the carbon stock in terrestrial ecosystems. The aims of this study were: to characterize the use of pastureland and native forest in two sites in El Oro province (Ecuador), based on their physical, chemical, and biological properties, and to compare the Soil Organic Carbon (SOC) stock at three depths. For this purpose, plots were established in Brachiaria sp pastures and native forests in the coastal area of Machala, Santa Inés site (SI), and the mountains of Chilla, Cune site (CN). Soil sampling was done at three depths (C1=0-10cm; C2=10-20cm; C3= 20-3 cm). The SI soils showed significance (p-value<0,05) among the stored SOC layers. The highest stored SOC value was for SI forest (C1, 36,30megagrams-Mg C ha-1), in an alkaline pH and clay loam texture. In CN soils, stored COS revealed no significance between layers, and values ranged from 27,64Mg ha-1(C1, CNforest) to 35,01 Mg C ha-1 (C3, CNpasture), in an acidic pH, sandy loam texture and high levels of Fe (761,71-938,34 mg kg-1). Soil properties play an important role in stored SOC levels; therefore, sequestration of SOC must be considered to develop optimal pasture management.https://revistas.udenar.edu.co/index.php/rfacia/article/view/5056/6355soil carbon sequestrationbulk densityorganic mattersoil texture
spellingShingle Salomón Barrezueta-Unda
Kelvin Velepucha-Cuenca
Luis Hurtado-Flores
Edwin Jaramillo-Aguilar
Soil properties and storage of organic carbon in the land use pasture and forest
Revista de Ciencias Agrícolas
soil carbon sequestration
bulk density
organic matter
soil texture
title Soil properties and storage of organic carbon in the land use pasture and forest
title_full Soil properties and storage of organic carbon in the land use pasture and forest
title_fullStr Soil properties and storage of organic carbon in the land use pasture and forest
title_full_unstemmed Soil properties and storage of organic carbon in the land use pasture and forest
title_short Soil properties and storage of organic carbon in the land use pasture and forest
title_sort soil properties and storage of organic carbon in the land use pasture and forest
topic soil carbon sequestration
bulk density
organic matter
soil texture
url https://revistas.udenar.edu.co/index.php/rfacia/article/view/5056/6355
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AT edwinjaramilloaguilar soilpropertiesandstorageoforganiccarboninthelandusepastureandforest