Tree root dynamics in montane and sub-alpine mixed forest patches.

ABSTRACT: Background and Aims:The structure of heterogeneous forests has consequences for their biophysical environment. Variations in the local climate significantly affect tree physiological processes. We hypothesize that forest structure also alters tree root elongation and longevity through temporal and spatial variations in soil temperature and water potential. Methods:We installed rhizotrons in paired vegetation communities of closed forest (tree islands) and open patches (canopy gaps), along a soil temperature gradient (elevations of 1400, 1700 and 2000 m) in a heterogeneous mixed forest. We measured the number of growing tree roots, elongation and mortality every month over 4 years. Key Results:The results showed that the mean daily root elongation rate (RER) was not correlated with soil wat

SUBMITTER: Wang Y 

PROVIDER: S-EPMC6215049 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature