The tree ring dataset of populus euphratica in the downstream of the Heihe River

The annual ring is the main technical means for carrying out the variance analysis, and it is also one of the methods to establish the expansion of water consumption time of plant transpiration. In 2001, this project sampled 60 Populus euphratica in Ejin Oasis and measured the age and ring width index.

年轮是进行方差分析的主要技术手段，亦为确立植物蒸腾作用耗水时间扩张之一种方法。2001年，本项目于额济纳绿洲采集了60株白杨（Populus euphratica），对其树龄及年轮宽度指数进行了测量。