Sealing capacity of clay-cap units above the Cerro Pabellón hidden geothermal system (northern Chile) derived by soil CO2 flux and temperature measurements

2019 ◽  
Vol 384 ◽  
pp. 1-14 ◽  
Author(s):  
Marco Taussi ◽  
Barbara Nisi ◽  
Marcela Pizarro ◽  
Diego Morata ◽  
Eugenio A. Veloso ◽  
...  
Keyword(s):  
Co2 Flux ◽  
Temperature Measurements ◽  
Geothermal System ◽  
Northern Chile ◽  
Soil Co2 ◽  
Soil Co2 Flux ◽  
Sealing Capacity ◽  
Clay Cap

Soil CO2 flux and temperature from a new geothermal area in the Cordón de Inacaliri Volcanic Complex (northern Chile)

Geothermics ◽  
2021 ◽  
Vol 89 ◽  
pp. 101961
Author(s):  
Marco Taussi ◽  
Barbara Nisi ◽  
Orlando Vaselli ◽  
Santiago Maza ◽  
Diego Morata ◽  
...  
Keyword(s):  
Co2 Flux ◽  
Volcanic Complex ◽  
Northern Chile ◽  
Geothermal Area ◽  
Soil Co2 ◽  
Soil Co2 Flux

The sealing capacity of the cap rock above the Torre Alfina geothermal reservoir (Central Italy) revealed by soil CO2 flux investigations

2015 ◽  
Vol 291 ◽  
pp. 25-34 ◽  
Author(s):  
Maria Luisa Carapezza ◽  
Massimo Ranaldi ◽  
Alessandro Gattuso ◽  
Nicola Mauro Pagliuca ◽  
Luca Tarchini
Keyword(s):  
Central Italy ◽  
Co2 Flux ◽  
Geothermal Reservoir ◽  
Soil Co2 ◽  
Soil Co2 Flux ◽  
Sealing Capacity ◽  
Cap Rock

scholarly journals Spatial and Temporal Variability of Soil CO2 Flux in Sugarcane Green Harvest Systems

2016 ◽  
Vol 40 (0) ◽  
Author(s):  
Rose Luiza Moraes Tavares ◽  
Zigomar Menezes de Souza ◽  
Newton La Scala Jr ◽  
Guilherme Adalberto Ferreira Castioni ◽  
Gustavo Soares de Souza ◽  
...  
Keyword(s):  
Temporal Variability ◽  
Co2 Flux ◽  
Spatial And Temporal Variability ◽  
Soil Co2 ◽  
Soil Co2 Flux

scholarly journals Comparative soil CO2 flux measurements and geostatistical estimation methods on Masaya volcano, Nicaragua

2005 ◽  
Vol 68 (1) ◽  
pp. 76-90 ◽  
Author(s):  
Jennifer L. Lewicki ◽  
Deborah Bergfeld ◽  
Carlo Cardellini ◽  
Giovanni Chiodini ◽  
Domenico Granieri ◽  
...  
Keyword(s):  
Co2 Flux ◽  
Estimation Methods ◽  
Soil Co2 ◽  
Soil Co2 Flux ◽  
Masaya Volcano ◽  
Geostatistical Estimation ◽  
Flux Measurements

Biocrust contribution to soil CO2 flux in desert shrubland ecosystem of northwest Mexico

2021 ◽  
pp. 1-17
Author(s):  
Fernando Ayala-Niño ◽  
Yolanda Maya-Delgado ◽  
Enrique Troyo-Diéguez ◽  
Pedro P. Garcillán
Keyword(s):  
Co2 Flux ◽  
Soil Co2 ◽  
Soil Co2 Flux ◽  
Northwest Mexico ◽  
Desert Shrubland

scholarly journals VARIABILIDADE ESPACIAL DO FLUXO DE CO2 DO SOLO EM POVOAMENTO DE EUCALIPTO

FLORESTA ◽  
2011 ◽  
Vol 41 (2) ◽  
Author(s):  
Alexandre Fonseca D’Andréa ◽  
Marx Leandro Naves Silva ◽  
Diego Antonio França de Freitas ◽  
Nilton Curi ◽  
Carlos Alberto Silva
Keyword(s):  
Organic Matter ◽  
Environmental Factors ◽  
Organic Carbon ◽  
Spatial Variability ◽  
Linear Correlation ◽  
Microbial Biomass Carbon ◽  
Co2 Flux ◽  
Water Evaporation ◽  
Soil Co2 ◽  
Soil Co2 Flux

A matéria orgânica do solo armazena a maior parte do carbono contido nos sistemas terrestres do planeta, sendo a maioria encontrada nos solos com floresta. O objetivo deste trabalho foi quantificar o fluxo de CO2 do solo e a sua variabilidade espacial em povoamento de Eucalyptus sp. Foram avaliados o fluxo de CO2 do solo, fatores ambientais (evaporação de água, temperatura e umidade do solo), atributos relacionados à fertilidade (pH, soma de bases e alumínio trocável), estrutura (densidade do solo e porosidade total) e matéria orgânica do solo (carbono orgânico total e carbono da biomassa microbiana). Análises de correlação linear simples indicaram que parte da variabilidade espacial do fluxo de CO2 do solo pode ser explicada pelo efeito conjunto do teor de carbono orgânico do solo, da biomassa da serapilheira e da presença de árvores no terreno, indicativas da participação de fatores bióticos no processo. No entanto, o fluxo de CO2 do solo é um fenômeno de natureza complexa, não sendo possível identificar um único atributo do solo ou do ambiente que, isoladamente, explique sua variação no espaço.Palavras-chave: Matéria orgânica; fatores ambientais; fertilidade; carbono; respiração do solo.AbstractSoil CO2 flux spatial variability on eucalyptus manmade forest.  The organic matter on soil retains most of carbon contained in the planet terrestrial systems, specially in forest soils. The aim of this work was to quantify soil CO2 flux and its spatial variability on Eucalyptus sp. manmade forest. In order to that, soil CO2 flux, environmental factors (water evaporation, soil temperature and moisture), fertility attributes (pH, bases sum and exchangeable aluminum), structure (bulk density and total porosity), and soil organic matter (total organic carbon and microbial biomass carbon) were evaluated. Simple linear correlation analyses indicated that part of the spatial variability of soil CO2 flux can be explained by the associated effect of soil organic carbon amount, litter biomass and presence of trees, indicatives of participation of biotic factors in the process. However, the soil CO2 flux is a complex phenomenon, been impossible to identify a single soil or environmental attribute, which, individually, could explain its spatial variability. Keywords: Organic matter; environmental factors; fertility; carbon; linear correlation. 

scholarly journals Soil CO2 flux: a method comparison of closed static chambers in a sugarcane field

2012 ◽  
Vol 36 (2) ◽  
pp. 421-426 ◽  
Author(s):  
Walane Maria Pereira de Mello Ivo ◽  
Ignacio Hernán Salcedo
Keyword(s):  
Soil Respiration ◽  
Method Comparison ◽  
Soil Surface ◽  
Co2 Flux ◽  
Soda Lime ◽  
Co2 Absorption ◽  
Soil Co2 ◽  
Soil Co2 Flux ◽  
Absorption Area ◽  
Trapping Solution

A large variety of techniques have been used to measure soil CO2 released from the soil surface, and much of the variability observed between locations must be attributed to the different methods used by the investigators. Therefore, a minimum protocol of measurement procedures should be established. The objectives of this study were (a) to compare different absorption areas, concentrations and volumes of the alkali trapping solution used in closed static chambers (CSC), and (b) to compare both, the optimized alkali trapping solution and the soda-lime trapping using CSC to measure soil respiration in sugarcane areas. Three CO2 absorption areas were evaluated (7; 15 and 20 % of the soil emission area or chamber); two volumes of NaOH (40 and 80 mL) at three concentrations (0.1, 0.25 and 0.5 mol L-1). Three different types of alkaline traps were tested: (a), 80 mL of 0.5 mol L-1 NaOH in glass containers, absorption area 15 % (V0.5); (b) 40 mL of 2 mol L-1 NaOH retained in a sponge, absorption area 80 % (S2) and (c) 40 g soda lime, absorption area 15 % (SL). NaOH concentrations of 0.5 mol L-1 or lower underestimated the soil CO2-C flux or CO2 flux. The lower limit of the alkali trap absorption area should be a minimum of 20 % of the area covered by the chamber. The 2 mol L-1 NaOH solution trap (S2) was the most efficient (highest accuracy and highest CO2 fluxes) in measuring soil respiration.

Soil CO2 flux from three ecosystems in tropical peatland of Sarawak, Malaysia

Tellus B ◽  
2005 ◽  
Vol 57 (1) ◽  
pp. 1-11 ◽  
Author(s):  
LULIE MELLING ◽  
RYUSUKE HATANO ◽  
KAH JOO GOH
Keyword(s):  
Co2 Flux ◽  
Soil Co2 ◽  
Soil Co2 Flux ◽  
Tropical Peatland
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