Mots-clés
Biogéochimie Changement climatique Chine Cycle du carbone Domaine semi-aride Ecosystème Expérimentation Hebei Réchauffement climatique Taihang Shan Température du sol Végétation Biogeochemistry Carbon cycle China Climatic change Climatic warming Ecosystem Experimentation Hebei Semi-arid area Soil temperature Vegetation Biogeoquímica Cambio climático Campo semiárido China Ciclo del carbono Ecosistema Experimentación Recalentamiento climático Temperatura del suelo VegetaciónSoil respiration response in different vegetation types at Mount Taihang, China
Auteur(s) et Affiliation(s)
ZENG, X.
Key Lab. of Agricultural Water Resources, Center for Agricultural Resources Research, CAS, Shijiazhuang, Chine
Univ. of Chinese Academy of Sciences, Beijing, Chine
ZHANG, W.
Key Lab. of Agricultural Water Resources, Center for Agricultural Resources Research, CAS, Shijiazhuang, Chine
SHEN, H.
Key Lab. of Agricultural Water Resources, Center for Agricultural Resources Research, CAS, Shijiazhuang, Chine
CAO, J.
Key Lab. of Agricultural Water Resources, Center for Agricultural Resources Research, CAS, Shijiazhuang, Chine
ZHAO, X.
Key Lab. of Agricultural Water Resources, Center for Agricultural Resources Research, CAS, Shijiazhuang, Chine
Univ. of Chinese Academy of Sciences, Beijing, Chine
Description :
Temperature response of soil respiration depends on the sensitivity and adaptability of soil respiration (SR) for the variation of soil temperature, which will directly influence the terrestrial carbon cycling and extent prediction of global warming. The diurnal and seasonal variations in the temperature response of SR were assessed through continuous measurement during the June 2012 – May 2013 with an automated chamber system under 3 vegetation types in the hilly region of Mount Taihang, China. Because of the differences of plant physiology and environment conditions, temperature sensitivity of soil respiration (Q10) varied among vegetation types. The seasonal variation of Q10 was primarily driven by soil temperature while soil moisture had little influence on the dynamic for each site based on annual scales. However, due to the complicated relation between soil properties and SR, Q10 value derived from diurnal and seasonal patterns of SR should be used with extreme caution when estimating carbon balance of terrestrial ecosystem.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2014, vol. 116, p. 78-85, nombre de pages : 8, Références bibliographiques : 1 p.
Date :
2014
Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)