Article
Physiological variation among Populus fremontii populations: short- and long-term relationships between delta13C and water availability.
Tree physiology - 1 Sept 2001
Leffler A J, Evans A S
Abstract excerpt
Different populations of widely distributed species can experience dramatically different climatic conditions that may influence physiological activity, specifically carbon assimilation and water use. Populus fremontii Wats. (Fremont cottonwood) populations are found near rivers of varying size along a precipitation gradient from New Mexico to northern California. Climatic differences among populations may lead...
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