Climatic control on plant and soil δ(13)C along an altitudinal transect of Lushan mountain in subtropical china: characteristics and interpretation of soil carbon dynamics.

ABSTRACT: Decreasing temperature and increasing precipitation along altitude gradients are typical mountain climate in subtropical China. In such a climate regime, identifying the patterns of the C stable isotope composition (δ(13)C) in plants and soils and their relations to the context of climate change is essential. In this study, the patterns of δ(13)C variation were investigated for tree leaves, litters, and soils in the natural secondary forests at four altitudes (219, 405, 780, and 1268 m a.s.l.) in Lushan Mountain, central subtropical China. For the dominant trees, both leaf and leaf-litter δ(13)C decreased as altitude increased from low to high altitude, whereas surface soil δ(13)C increased. The lower leaf δ(13)C at high altitudes was associated with the high moisture-related discriminatio

SUBMITTER: Du B 

PROVIDER: S-EPMC3900521 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature