Morphological characteristics of oak
The oak tree has a beautiful shape and a tower shaped crown. It is up to 24 meters high and grows at a medium speed. The crown width is 10 meters, the leaf type is unique, the new leaves are bright red, the mature leaves are dark green and shiny, turn orange red in September, and the defoliation period is late. Oak is the largest flowering plant in the world, with pure white flowers and red stamens; The life span is relatively long. It has a life span of 400 years. They all have common characteristics. The leaves are bigger than the palm of the hand and stretch out a few strong fingers like the hand; The fruit is a nut. One end is hairy and the other end is bare. It is good-looking and delicious. It is the first-class food for fun animals such as squirrels p>
Oak varieties
There are many kinds of oak trees, including 60 or 70 kinds, including black oak, white oak, red oak, chestnut oak, English oak and so on. Oak trees are distributed in many parts of the world, but their bark can be used as cork only under specific regional conditions - Mediterranean climate. Portugal is known as the country on the oak tree p>
Use of oak
Landscaping. With long life span and shiny leaves, oak is the largest flowering plant in the world. The plant has strong stress resistance and good adaptability to the environment. It can be cultivated all over the world. It is a good landscaping material. It is widely planted in the streets of the park and family courtyards, providing people with cool shade and places to enjoy p>
Make cork. The interior of the xylem of oak bark is filled with many honeycomb structures. The interior of the honeycomb is full of air and has good elasticity. It is a good material for making cork. Cork itself is very wear-resistant. Now many engine cylinder pads in various countries use cork as raw material. Cork floor is a natural material without damaging the environment. It has strong sound absorption, heat insulation and pressure resistance. It is also moth proof and moisture-proof. It is also easy to clean and maintain. At the same time, the unique pattern and color of cork are elegant and beautiful. It is suitable to be used as ground material. In addition, the cork is moisture-proof and moth proof, which can ensure that the wine will not pass with the years in the dark and humid cellar. This pure natural material has no harm to human body, so it has been widely used in the production of wine and champagne corks for more than 100 years p>
Growth habits of oak trees
Oak trees are native to North India, Malaysia and Indonesia, and are now planted all over the world p>
Oak has strong stress resistance, dry, high temperature and water humidity resistance, frost resistance and urban environmental pollution resistance, strong wind resistance, and likes well drained soil, but it can also grow in viscous soil p>