Detecting the storage and change on topsoil organic carbon in grasslands of Inner Mongolia from 1980s to 2010s

Auteur(s) et Affiliation(s)

DAI, E.

Key Lab. of Land Surface Pattern and Simulation, Inst. of Geographic Sciences and Natural Ressources Research, CAS, Beijing, Chine

ZHAI, R.

Key Lab. of Land Surface Pattern and Simulation, Inst. of Geographic Sciences and Natural Ressources Research, CAS, Beijing, Chine

Univ. of Chinese Academy of Sciences, Beijing, Chine

GE, Q.

Key Lab. of Land Surface Pattern and Simulation, Inst. of Geographic Sciences and Natural Ressources Research, CAS, Beijing, Chine

WU, X.

Beijing Forestry Univ., Beijing, Chine

Description :
Based on soil data from the second national soil survey and field survey during 2011–2012, by using the regression method between sampling soil data and remote sensing data, this paper aimed to investigate spatial distribution and changes of topsoil (0–20 cm) organic carbon storage in grasslands of Inner Mongolia between the 1980s and 2010s. The SOC storage was mainly distributed in the typical steppe and meadow steppe. The spatial distribution showed a decreased trend from the meadow steppe, typical steppe to the desert steppe, corresponding to the temperature and precipitation gradient. It appears that SOC storage in grassland ecosystem may respond differently to climate change, related to vegetation type, regional climate type and grazing intensity. These results might give advice to decision makers on adopting suitable countermeasures for sustainable grassland utilization and protection.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2014, vol. 24, n°. 6, p. 1035-1046, nombre de pages : 12, Références bibliographiques : 40 ref.

Date :
2014

Editeur :
Pays édition : Chine

Langue :
Anglais