Resources Status and Conservation Strategy of Ancient Tea Plant in Xishuangbanna

The ancient tea plants were investigated in Xishuangbanna area by routine survey and sampling survey,the species,tree-age,quantity,distribution and growing of ancient tea plants were analyzed,and the archives were built.The results showed that ancient tea plants distributed at 18 townships,59 villages,and existing areas of 5494.1 hm2,and it belonged to 3 sevens,7 species and varieties.There were 2 individuals of ancient tea plants with tree age more than 1000 a,the individual number with tree age of 500-1000 a,300-499 a was 7 and 13,respectively,the others in 100-299 years old.Among these ancient tea plants,92.55 % are growing well or generally,7.45 % are growing poorly and dying.According to these investigation results,the survival crisis and endangered reasons of ancient tea plants were discussed in Xishuangbanna area,and some suggestions about management and conservation of ancient tea plants were put forward.