From the appearance, there are two kinds of Huang Huali in Hainan: one is that the bark is cracked, the leaves are small and thick, the tip is blunt and round, the leaves are dark, the leaves are shiny, the flowers are ivory and the seeds are small. This kind of sea yellow mostly grows in Changhua River basin in Hainan and in the south and southwest of Hainan. Another kind of bark has longitudinal straight grooves, slightly larger leaves, slender and thin, sharp top, light color, slightly whitish surface, white flowers and large seeds. This kind of sea yellow is more common in Nandujiang River basin in Hainan and in the northeast and northwest of Hainan.
How tall can Huang Huali grow?
According to the Records of China Trees, Huang Huali is 20 meters high and 80 centimeters in diameter at breast height. Let's just say that the height can be as high as seven stories, and the diameter of the trunk is half that of a person who is 1.60 meters tall. Go back and let your wife or girlfriend lie down and measure, haha!
How fast can Huang Huali develop?
This problem should be most concerned by many people. Huang Huali can grow to about 10 meter in 20 years in wild and natural state, and its DBH is about 12 cm. Generally, the growth rate of artificial planting is relatively fast. In addition, the growth rate also depends on geographical environment, climate and other factors. Under some special conditions, the sea yellow grows to 10 m in 40-50 years, and the DBH is only 4-5 cm.
Speaking of this, many people will be extremely excited. Can they grow 20 cm in diameter in 20 years? This has something to do with it. We are going to start planting sea yellow and open up a bright road to get rich.
However, the viability of sea yellow is very strong, and the highest planting survival rate can reach more than 90%.
The reproductive ability of Huang Huali in nature is very poor, and a mother tree can collect about seven or eight kilograms of seeds every year. The storage period of seeds is one year, and the germination rate is generally around 70%. If well cared for, it can reach 80%.
(Fruit of Huang Huali, Hainan)
What kind of environment is Hainan huanghuali suitable for survival?
Huang Huali is very easy to grow, and it is a plant with strong drought tolerance and tenacious vitality. It can grow in seaside, sandy land, arid and barren places, and even cracks. But there is one condition, that is, it cannot grow above 400 meters above sea level. Some so-called experts who don't know the situation also said how long Huang Huali in Hainan grew up on Wuzhishan in Hainan. In fact, there is no wild Huang Huali on Wuzhishan, which is related to the elevation of Wuzhishan.
Why is the root material in the eastern Yangtze River the best? Because the soil in these places is very thin, there are many rocks under the soil, and the sea yellow can't grow better, so it can only grow on the surface of the rocks.
Many sea yellow in Wang Xia Town of the Yangtze River are black or purple-black, and the wood is hard, dense and heavy, and the oil content of wood is also very rich. This area produces many purple-black materials. This kind of sea yellow is called "Tiehua pear" by local people, which is also commonly known as "Purple avocado". The formation of this substance is mainly because these places are rich in iron minerals underground, and sea yellow grows slowly in this environment.
Sea yellow growing in the wild is often hurt by wind, lightning, animal invasion or man-made logging. But as long as the roots remain underground, they can take root and sprout and survive again. We often find a few small huanghuali saplings on the soil, while under the soil are big tree heads that have gone through vicissitudes and holes. This powerful vitality is not possessed by many trees and plants. One way for local Li people to go up the mountain to find materials is to see if there are any seedlings of sea yellow around them to judge whether there are any sea yellow trees left underground.
The harder it grows, the better the material of sea yellow is, but the slower it grows, so high-quality sea yellow material is not easy to get unless it is precipitated for a hundred years.