Soil organic carbon and its relationship to vegetation communities and soil properties in permafrost areas of the Central Western Qinghai-Tibet Plateau, China

Auteur(s) et Affiliation(s)

WU, X.

Cryosphere research Station on the Qinghai-Tibetan Plateau, Chinese Academy of Sciences, Lanzhou, Chine

State Key Lab. of Cryospheric Sciences, Lanzhou, Chine

Cold and Arid Region Environmental and Engineering Research Inst., CAS, Lanzhou, Chine

ZHAO, L.

Cryosphere research Station on the Qinghai-Tibetan Plateau, Chinese Academy of Sciences, Lanzhou, Chine

State Key Lab. of Cryospheric Sciences, Lanzhou, Chine

Cold and Arid Region Environmental and Engineering Research Inst., CAS, Lanzhou, Chine

CHEN, M.

Inst. of Soil Science, CAS, Nanjing, Chine

FANG, H.

Cryosphere research Station on the Qinghai-Tibetan Plateau, Chinese Academy of Sciences, Lanzhou, Chine

State Key Lab. of Cryospheric Sciences, Lanzhou, Chine

Cold and Arid Region Environmental and Engineering Research Inst., CAS, Lanzhou, Chine

YUE, G.

Cryosphere research Station on the Qinghai-Tibetan Plateau, Chinese Academy of Sciences, Lanzhou, Chine

State Key Lab. of Cryospheric Sciences, Lanzhou, Chine

Cold and Arid Region Environmental and Engineering Research Inst., CAS, Lanzhou, Chine

CHEN, J.

Cold and Arid Region Environmental and Engineering Research Inst., CAS, Lanzhou, Chine

State Key Lab. of Frozen Soil Engineering, Lanzhou, Chine

PANG, Q.

Cryosphere research Station on the Qinghai-Tibetan Plateau, Chinese Academy of Sciences, Lanzhou, Chine

State Key Lab. of Cryospheric Sciences, Lanzhou, Chine

Cold and Arid Region Environmental and Engineering Research Inst., CAS, Lanzhou, Chine

WANG, Z.

Cryosphere research Station on the Qinghai-Tibetan Plateau, Chinese Academy of Sciences, Lanzhou, Chine

State Key Lab. of Cryospheric Sciences, Lanzhou, Chine

Cold and Arid Region Environmental and Engineering Research Inst., CAS, Lanzhou, Chine

DING, Y.

State Key Lab. of Cryospheric Sciences, Lanzhou, Chine

Cold and Arid Region Environmental and Engineering Research Inst., CAS, Lanzhou, Chine

Description :
Soil organic carbon (SOC) contents were examined beneath two grassland vegetation communities and cold desert sites in permafrost areas of the central western part of the Qinghai-Tibet Plateau. More than 80 per cent of SOC stocks beneath the grasslands were in the top 100 cm. Correlation analyses showed that SOC stocks in the top 150 cm are linked to soil moisture content, and the vertical distribution of SOC is mainly affected by depth and soil moisture content. Moisture content and vegetation communities are therefore important factors associated with SOC content in this cold, arid area, while active-layer thickness, vegetation cover and topographical factors play non-significant roles in SOC distribution.

Type de document :
Article de périodique

Source :
Permafrost and periglacial processes, issn : 1045-6740, 2012, vol. 23, n°. 2, p. 162-169, nombre de pages : 8, Références bibliographiques : 29 ref.

Date :
2012

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais