Αποτελέσματα Αναζήτησης
20 Απρ 2018 · The morphological, anatomical and hydraulic traits across five distal root orders were measured in species with different levels of shade tolerance and life history strategies. The species studied were Acer negundo, Acer rubrum, Acer saccharum, Betula alleghaniensis, Betula lenta, Quercus alba, Quercus rubra, Pinus strobus and Pinus virginiana.
- PMC Free Article
Lateral water movement may also be limited by the high...
- Variation of The Linkage of Root Function With Root Branch Order
Here, root anatomic traits of the first five branch order...
- PMC Free Article
Early twentieth century logging practices that favored shade tolerant species resulted in a decrease in yellow birch . The effects of different harvesting systems and conditions on yellow birch regeneration have been studied and reviewed [70,92,109]. Harvest should coincide with good seed years .
Betula alleghaniensis Britton. Yellow Birch. Betulaceae -- Birch family. G. G. Erdmann. Yellow birch (Betula alleghaniensis) is the most valuable of the native birches. It is easily recognized by the yellowish-bronze exfoliating bark for which it is named.
In 8% light, growth and survival were highest for shade-intolerant Betula papyrifera and mid-tolerant Betula alleghaniensis, lower for shade-tolerant Ostrya and Acer, and lowest for disturbance-adapted Quercus.
Beeches are extremely tolerant of shade and can persist under the shade of other species for decades. European beech ( Fagus sylvatica ) is a dominant species in the broadleaved forests of Europe located principally in the foothills of mountainous areas.
1 Ιουλ 2004 · In a 4-year study, we investigated changes in leaf physiology, crown morphology and whole-tree biomass allocation in seedlings and saplings of shade-tolerant sugar maple (Acer saccharum Marsh.) and intermediate shade-tolerant yellow birch (Betula alleghaniensis Britt.) growing in natural understory light (0.5 to 35% of full sunlight) or in ...
24 Οκτ 2006 · In addition to our data for five species, we calculated the values of D P, D S and D T for three North American temperate deciduous species of varying shade tolerance (Betula alleghaniensis, Betula papyrifera and Populus tremuloides) using the data of Reich et al.
