Sapwood


#|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z Index  


Sapwood - short version

Young and light coloured wood that forms between the bark and heartwood of a tree.



Sapwood - long version

Sapwood is the younger, outermost wood; in the growing tree it is living wood, and its principal functions are to conduct water from the roots to the leaves and to store up and give back according to the season the reserves prepared in the leaves. However, by the time they become competent to conduct water, all xylem tracheids and vessels have lost their cytoplasm and the cells are therefore functionally dead. All wood in a tree is first formed as sapwood. The more leaves a tree bears and the more vigorous its growth, the larger the volume of sapwood required. Hence trees making rapid growth in the open have thicker sapwood for their size than trees of the same species growing in dense forests. Sometimes trees (of species that do form heartwood) grown in the open may become of considerable size, 30 cm or more in diameter, before any heartwood begins to form, for example, in second-growth hickory, or open-grown pines.



Chartitnow

IQ Catch Banner

Advertising





Definition in Chinese | Definition in French | Definition in Italian | Definition in Spanish | Definition in Dutch | Definition in Portuguese | Definition in German | Definition in Russian | Definition in Japanese | Definition in Greek | Definition in Turkish | Definition in Hebrew | Definition in Arabic | Definition in Swedish | Definition in Korean | Definition in Hindi | Definition in Vietnamese | Definition in Polish | Definition in Thai