Mots-clés
Azote Biogéochimie Carbone Changement climatique Chine Chine du Nord-Est Milieu humide Montagne Pergélisol Propriétés du sol Réchauffement climatique Tourbière Végétation Biogeochemistry Carbon China Climatic change Climatic warming Humid environment Mountain Nitrogen North-Eastern China Peat bog Permafrost Soil properties Vegetation Biogeoquímica Cambio climático Carbono China Medio húmedo Montaña Nitrógeno Pergelisol Propiedades del suelo Recalentamiento climático Turbera VegetaciónSoil carbon and nitrogen across wetland types in discontinuous permafrost zone of the Xiao Xing'an Mountains, northeastern China
Auteur(s) et Affiliation(s)
WANG, X.
Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine
SONG, C.
Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine
SUN, X.
Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine
WANG, J.
Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine
Graduate School of Chinese Academy of Sciences, Beijing, Chine
ZHANG, X.
Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine
MAO, R.
Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine
Description :
In this study, the AA. collected soil samples from different wetlands in the discontinuous permafrost zone of the Xiao Xing'an Mountains, northeastern China. Permafrost was only present in the bogs and fens in this zone. Soil C concentrations were significantly correlated with total N concentrations and bulk density. Wetland type, soil depth, and incidence of fire affected soil C and total N concentrations, suggesting that vegetation changes in wetlands could alter the soil C and nutrient sequestration processes under future global warming scenarios. However, the soil C storage and total N storage were not significantly difference in the upper soil layer for the wetlands types. The vegetation changing of bogs and fens would increase the depth of the permafrost active layer.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 101, p. 31-37, nombre de pages : 7, Références bibliographiques : 1 p.
Date :
2013
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)