Substantial variation in leaf senescence times among 1360 temperate woody plant species: implications for phenology and ecosystem processes
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چکیده
منابع مشابه
Leaf hydraulics and drought stress: response, recovery and survivorship in four woody temperate plant species.
Efficient conduction of water inside leaves is essential for leaf function, yet the hydraulic-mediated impact of drought on gas exchange remains poorly understood. Here we examine the decline and subsequent recovery of leaf water potential (Psi(leaf)), leaf hydraulic conductance (K(leaf)), and midday transpiration (E) in four temperate woody species exposed to controlled drought conditions rang...
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Monitoring phenology, the study of the timing of natural events, is an ancient practice that has experienced renewed interest in the wake of awareness of climate change. Spring onset has been occurring significantly earlier in temperate regions worldwide. Leaf out phenology is of particular interest because the emergence of leaves in the spring is extremely sensitive to temperature, and leaf ou...
متن کاملFrom observations to experiments in phenology research: investigating climate change impacts on trees and shrubs using dormant twigs.
BACKGROUND AND AIMS Climate change is advancing the leaf-out times of many plant species and mostly extending the growing season in temperate ecosystems. Laboratory experiments using twig cuttings from woody plant species present an affordable, easily replicated approach to investigate the relative importance of factors such as winter chilling, photoperiod, spring warming and frost tolerance on...
متن کاملBud composition, branching patterns and leaf phenology in cerrado woody species.
BACKGROUND AND AIMS Plants have complex mechanisms of aerial biomass exposition, which depend on bud composition, the period of the year in which shoot extension occurs, branching pattern, foliage persistence, herbivory and environmental conditions. METHODS The influence of water availability and temperature on shoot growth, the bud composition, the leaf phenology, and the relationship betwee...
متن کاملLeaf absorptance of photosynthetically active radiation in relation to chlorophyll meter estimates among woody plant species
The quantum yield of photosystem II, determined by chlorophyll fluorescence and the quantum yield of CO2 uptake, determined from gas exchange, are two physiologically important measurements in clarifying the response to environmental stress. Both measurements, however, require an accurate assessment of leaf light absorption in the photosynthetically active radiation wavelength range (400–700 nm...
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ژورنال
عنوان ژورنال: Annals of Botany
سال: 2015
ISSN: 1095-8290,0305-7364
DOI: 10.1093/aob/mcv015