Abstract: The growth natures and ecological characteristics of Cunninghamia lanceolata are summarized as follows: 1. In the growth rhythm: a. The rapid growth stage appears from 4th year to llth year. b. A fast growth season is significant from June to Septamber. On the basis of eeotype of Cunninghamia lanceolata, the correlative analysis has been applied. The growth of the standing forest expresses an obvious correlation with temperature, relative hmnidity and precipitation, c. The growth in height proceeds at night and stops at day. 2. The growth is not affected, when the salt content of the soil is <0.05%. While the growth is evidently restrained by salt, when the salt content of the soil reaches 0.1%. 3. Cunninghamia lanceolata is a tree species with great adaptability to soil acidity. It can grow in the soil with pH 4–9. 4. The thinning experiment has shown that the suitable stand density is 150 trees/mu.

Key words: Growth rhythm, Ecotype, Salt tolerance, Adaptability to soil Acidity