A PRIMARY STUDY ON CHINESE TULIP TREE AND ITS YOUNG PLANTATION IN CHINA

Liriodendron has only two species, yellow-poplar in the United States, Chinese tulip tree in China. The original of Chinese tulip tree is a second-class national protection species in our country. It distributes naturally in the south-central of the Chinese subtropical zone. There are three distribution areas and the main production one is in Xiang-E-Qian region. This paper is dealing with its ecological environment, biological characteristics, growth and development. A primary study on its young plantation's growth, biomass and thinning period has been made.Chinese tulip tree grows fast. Its timber has many uses, especially in the production of plywood and pulp. It is also a fine ornamental tree and should be planted more in the future.