Plant genetic variation drives geographic differences in atmosphere-plant-ecosystem feedbacks.

ABSTRACT: The objective of this study was to understand how genetic variation in a riparian species, Populus angustifolia, affects mass and energy exchange between the land and atmosphere across ~1,700 km of latitude of the western United States. To examine the potential for large-scale land-atmosphere feedbacks in hydrologic processes driven by geographic differences in plant population traits, we use a physical hydrology model, paired field, and greenhouse observations of plant traits, and stable isotope compositions of soil, stem, and leaf water of P. angustifolia populations. Populations show patterns of local adaptation in traits related to landscape hydrologic functioning-a 47% difference in stomatal density in greenhouse conditions and a 74% difference in stomatal ratio in the f

SUBMITTER: Bayliss SLJ 

PROVIDER: S-EPMC10168077 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature