Photosynthesis or persistence: nitrogen allocation in leaves of evergreen and deciduous Quercus species
نویسندگان
چکیده
منابع مشابه
Responses of evergreen and deciduous Quercus species to enhanced ozone levels.
Plants of one evergreen oak (Quercus ilex) and three deciduous oaks (Q. faginea, with small leaves; Q. pyrenaica and Q. robur, with large leaves) were exposed both to filtered air and to enhanced ozone levels in Open-Top Chambers. Q. faginea and Q. pyrenaica were studied for the first time. Based on visible injury, gas exchange, chlorophyll content and biomass responses, Q. pyrenaica was the mo...
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Remobilization of internal resources is an important mechanism enabling plants to be partly independent of external nutrient availability. We assessed resource remobilization during the growing period in woody and foliar tissues of leafy branches of mature evergreen Mediterranean oak (Quercus ilex L.) at three field sites. We compared nonstructural carbohydrates, lipids, nitrogen and phosphorus...
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z Allometric equations were developed for mature trees of 10 deciduous species @cer rubncm L., Bet& lenta L., Carya spp., Comus florida L., Lir iodendron tu l ip i fera L., Oxydendrum arboreum (L.) DC., Quemus a lba L., Quercus coccinea Muenchh., Quercm prints L., and Quercus rubra L.) at the Coweeta Hydrologic Laboratory in western North Carolina, U.S.A. These equations included the following ...
متن کاملDo photosynthetic limitations of evergreen Quercus ilex leaves change with long-term increased drought severity?
Seasonal drought can severely impact leaf photosynthetic capacity. This is particularly important for Mediterranean forests, where precipitation is expected to decrease as a consequence of climate change. Impacts of increased drought on the photosynthetic capacity of the evergreen Quercus ilex were studied for two years in a mature forest submitted to long-term throughfall exclusion. Gas exchan...
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ژورنال
عنوان ژورنال: Plant, Cell and Environment
سال: 2004
ISSN: 0140-7791,1365-3040
DOI: 10.1111/j.1365-3040.2004.01209.x