This is my earlier published "Illustrated - Huanghuali? An article
Here are excerpts from it, I hope it can help you and hobbyist Huanghuali friends.
Huanghuali growth
Huanghuali tree growth refers to the Huanghuali trees in the process of growth and development, through cell division and expansion, so that the Huanghuali trees in the process of increasing the shape and weight. Huanghuali tree is perennial deciduous tree plant, its life we divide it into over 4 stages:
1, juvenile
Young Huanghuali tree juvenile is quite long, from the seedling growth to the formation of the heartwood can become a tool, it takes about 10 years and more than 10 years to grow into, juvenile Huanghuali tree's main feature is the heartwood has not yet been formed, the formation of heartwood can not be formed into a tool, used in the furniture Or crafts production.
Figure 1: Huanghuali seeds
Figure 2: Mature Huanghuali seeds
Figure 3: Artificially cultivated Huanghuali seedlings
Figure 4: Industrialized artificial Huanghuali seedlings
Figure 5: Huanghuali saplings waiting to be transplanted
Figure 6: Huanghuali trees after 5-10 years of planting
Figure 7: At this time, the Huanghuali trees are in the juvenile stage, and the core material is still forming.
Figure 8: specific geographic environment and climate is a prerequisite for Huanghuali to become a timber
Figure 9: careful cultivation to ensure that Huanghuali tree's healthy growth
2, maturity
Maturity Huanghuali wood has been the formation of the heartwood, the proportion of the main trunk of the heartwood from the cross-section of the radial line, already accounted for Diameter of 1/3 or more, this time the Huanghuali wood although the proportion of usable material is not high but already can be used for the production of objects, this mainly stems from the Huanghuali in one and our planting of the expected time gap is large, if the Huanghuali trees to achieve the basic size of the ordinary forest felling, people planted the Huanghuali tree, the end of life may not be able to achieve. That is to say that the yellow rose pear trees is really "the former planted trees after people enjoy (enjoy)", due to the extreme lack of yellow rose pear timber, successive artificial forests (yellow rose pear), people do not hesitate to use a variety of methods means to make the yellow rose pear trees can be as soon as possible into the timber. But plants, after all, also has its growth law, catalyze the method and change the growth environment, such as India sandalwood seeding, change the environment sandalwood quality greatly affected. Few successful cases. Huanghuali wood although different India sandalwood this kind of delicate, but its unique descending fragrance, it is difficult to say will not be affected. The quality of its Huanghuali wood will likewise be subject to artificial catalyst and change.
The Huanghuali tree maturity period is very long about hundreds of years, (lack of comparison samples) the maturity of the Huanghuali tree diameter can grow to more than one meter.
After the maturity of the Huanghuali slowly into the overripe period. Overripe period of the Huanghuali tree trunk, branches and trunk core material in the tannin, terpenoids, color ketone, plant wax, descending balsam, descending balsam alcohol containing oil volatile substances tend to be high, greasy substances more than 25%. Heartwood after hundreds of years of mellowing, descending aroma particularly mellow and rich and show pleasant divine fragrance, beyond sandalwood, savor its descending aroma, show noble, calm, gentle and let a person tranquility and calm to produce a sense of conversion. This is also one of the fundamental reasons for being chosen by the Buddhists and the royal family.
Figure 10: The world's only remaining wild and rare huanghuali growing in Annam (formerly part of China).
Figure 12: Huanghuali in plantation forests, where the core material has been initially formed.
Figure 13: Huanghuali wood available heartwood, at this time the proportion of core material has exceeded the white skin.
The above is the first two periods in the growth process of Huanghuali.
Courtesy of Zhou Yang