Sensitivity of soil respiration to moisture and temperature

The sensitivity of soil respiration to moisture and temperature was evaluated in three soils from the Atlantic temperate humid zone (Galicia, NW Spain) dedicated to different types of land use (forest, grassland and cropland). Samples of the soils were incubated in the laboratory for 42 days under d...

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Autores principales:	Guntiñas,M. E, Gil-Sotres,F, Leirós,M. C, Trasar-Cepeda,C
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2013
Materias:	Climate change soil respiration soil temperature soil moisture soil use
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000200015
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spelling	oai:scielo:S0718-951620130002000152013-09-09Sensitivity of soil respiration to moisture and temperatureGuntiñas,M. EGil-Sotres,FLeirós,M. CTrasar-Cepeda,C Climate change soil respiration soil temperature soil moisture soil use The sensitivity of soil respiration to moisture and temperature was evaluated in three soils from the Atlantic temperate humid zone (Galicia, NW Spain) dedicated to different types of land use (forest, grassland and cropland). Samples of the soils were incubated in the laboratory for 42 days under different temperature (10, 15, 20, 25, 30, 35 °C) and moisture (40, 60, 80, 100% of field capacity) conditions. Emission of CO2 from Grassland soil was higher than from the other soils. However, despite the different organic matter contents and biochemical activities in the three soils, temperature and moisture were the main factors affecting respiration. It was not possible to demonstrate the effect of soil use on the temperature sensitivity of organic matter mineralization. Sensitivity to temperature was accurately determined by Q10 expressions, but some results indicate that for correct estimation of Q10 in the incubation experiments, the CO2 emission data obtained during the first few days of incubation should be disregarded. Furthermore, the sensitivity of the soil organic matter to temperature was higher at low soil moisture contents. This finding was surprising as it is generally considered that temperature has a greater effect on respiration in nearly saturated soils than in drier soils.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.13 n.2 20132013-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000200015en10.4067/S0718-95162013005000035
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Climate change soil respiration soil temperature soil moisture soil use
spellingShingle	Climate change soil respiration soil temperature soil moisture soil use Guntiñas,M. E Gil-Sotres,F Leirós,M. C Trasar-Cepeda,C Sensitivity of soil respiration to moisture and temperature
description	The sensitivity of soil respiration to moisture and temperature was evaluated in three soils from the Atlantic temperate humid zone (Galicia, NW Spain) dedicated to different types of land use (forest, grassland and cropland). Samples of the soils were incubated in the laboratory for 42 days under different temperature (10, 15, 20, 25, 30, 35 °C) and moisture (40, 60, 80, 100% of field capacity) conditions. Emission of CO2 from Grassland soil was higher than from the other soils. However, despite the different organic matter contents and biochemical activities in the three soils, temperature and moisture were the main factors affecting respiration. It was not possible to demonstrate the effect of soil use on the temperature sensitivity of organic matter mineralization. Sensitivity to temperature was accurately determined by Q10 expressions, but some results indicate that for correct estimation of Q10 in the incubation experiments, the CO2 emission data obtained during the first few days of incubation should be disregarded. Furthermore, the sensitivity of the soil organic matter to temperature was higher at low soil moisture contents. This finding was surprising as it is generally considered that temperature has a greater effect on respiration in nearly saturated soils than in drier soils.
author	Guntiñas,M. E Gil-Sotres,F Leirós,M. C Trasar-Cepeda,C
author_facet	Guntiñas,M. E Gil-Sotres,F Leirós,M. C Trasar-Cepeda,C
author_sort	Guntiñas,M. E
title	Sensitivity of soil respiration to moisture and temperature
title_short	Sensitivity of soil respiration to moisture and temperature
title_full	Sensitivity of soil respiration to moisture and temperature
title_fullStr	Sensitivity of soil respiration to moisture and temperature
title_full_unstemmed	Sensitivity of soil respiration to moisture and temperature
title_sort	sensitivity of soil respiration to moisture and temperature
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000200015
work_keys_str_mv	AT guntinasme sensitivityofsoilrespirationtomoistureandtemperature AT gilsotresf sensitivityofsoilrespirationtomoistureandtemperature AT leirosmc sensitivityofsoilrespirationtomoistureandtemperature AT trasarcepedac sensitivityofsoilrespirationtomoistureandtemperature
_version_	1714206454935715840

Sensitivity of soil respiration to moisture and temperature

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