ELIZAVETA LITVAK, HEATHER R. MCCARTHY and DIANE E. PATAKI Water relations of coast redwood planted in the semi-arid climate of southern California Plant, Cell & Environment 34
The water relations of trees planted in southern California, where they are often exposed to an unusual combination of dry atmosphere and irrigated soil, are uncertain. We investigated the water relations of coast redwood (Sequoia sempervirens) planted in the urbanized semi-arid Los Angeles Basin, where it often experiences leaf chlorosis and senescence. We conclude that water stress was not a direct factor in causing leaf chlorosis and senescence. Instead, the relatively strong stomatal control that is adaptive in the native habitat of coast redwood may lead to carbon limitation and other stresses in semi-arid, irrigated habitats.
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