1. Age characteristics
The age of ancient trees in our country is concentrated in the 100-499, with fewer ancient trees over 500 years. The number of ancient trees in sichuan province is 5139, and the age of the yellow trees (alias twigs and twigs) located in the village of victory of the village of peace is 4600。
2. Tree height characteristics
According to the analysis of valid tree heights in 21 provinces (districts, cities), the country's ancient tree tree heights are concentrated in the 10-20 metres section, which accounts for 53. 4 per cent of the total number of ancient wood; the {todayhot} section, which is less than 10 metres, which accounts for 24. 5 per cent of the total; the 21 metres-30 metres section, which accounts for 19. 1 per cent of the total number of ancient wood; and the 30 metres and above, which represents 3 per cent of the total. The guangxi autonomous region is a mountain tree with a number 62 and a serial number 1110, which is up to 58 metres old。
3. Nucleus characteristics
According to the analysis of valid bracing data in 21 provinces (districts and municipalities), the country's cortex is concentrated in 100 cm-299 cm, accounting for 69. 5 per cent of the total number of cm; the section below 100 cm, accounting for 3. 8 per cent of the total number of cms; the section 300 cm-499 cm, accounting for 17. 3 per cent of the total number of cm; and the section above 500 cm, accounting for 9. 4 per cent of the total number of cm. Of these, shaanxi province, number 6113210526, is 6,800 cm bra, 800 years old, located in the village of the western slopes of the hyoyang commune。
4. Capacitive characteristics
According to the analysis of data on valid coronations in 21 provinces (districts, cities), the average coronary size of the country's ancient tree is concentrated in the 5-20-metre section, accounting for 86. 7 per cent of the total number of ancient trees in the country; the area below 5 metres, accounting for 10. 5 per cent of the total number of ancient trees; the area between 21 metres and 40 metres, accounting for 2. 6 per cent of the total number of ancient trees; and the area above 40 metres, accounting for 0. 2 per cent. Of these, jiangxi province, no. 02260145, a herring tree, with a crown of 53 metres, is located in the five groups of shimen chen tong dam in the village of shinda, the village of huoxi creek。
