Constraints on light interception efficiency due to shoot architecture in broad-leaved Nothofagus species
نویسندگان
چکیده
منابع مشابه
Modelling environmental limits to light use efficiency for a canopy of two broad-leaved tree species with contrasting leaf habit
We used outputs from a model of canopy carbon uptake [Dungan et al. (2004) Functional Ecology 18: 34–42] and measurements of irradiance (PAR, 400–700 nm) intercepted by the canopy to investigate the effect of daily changes in environmental conditions on daily light use efficiency, ε, for a canopy comprising two broadleaved New Zealand tree species with contrasting leaf habit. Irradiance absorbe...
متن کاملA method for estimating light interception by a conifer shoot.
We present an operational method for estimating the amount of PAR intercepted by a coniferous shoot. Interception of PAR by a shoot is divided into three components: the amount of radiation coming from the sky, the transmission of radiation through the surrounding vegetation, and the shoot' s silhouette area facing the direction of the incoming radiation. All three components usually vary with ...
متن کاملShoot structure, light interception, and distribution of nitro
ture and needle morphology on the distributions of light and nitrogen within a Pacific silver fir (Abies amabilis (Dougl.) Forbes) canopy. Specifically, we investigated the role of morphological shade acclimation in the determination of resource use efficiency, which is claimed to be optimal when the distribution of nitrogen within the canopy is directly proportional to the distribution of inte...
متن کاملShoot structure, light interception, and distribution of nitrogen in an Abies amabilis canopy.
We studied the effects of variation in shoot structure and needle morphology on the distributions of light and nitrogen within a Pacific silver fir (Abies amabilis (Dougl.) Forbes) canopy. Specifically, we investigated the role of morphological shade acclimation in the determination of resource use efficiency, which is claimed to be optimal when the distribution of nitrogen within the canopy is...
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ژورنال
عنوان ژورنال: Tree Physiology
سال: 2004
ISSN: 0829-318X,1758-4469
DOI: 10.1093/treephys/24.6.617