There was heterogeneity in seed time in the euphratica meta-population.
胡杨集合种群在种子时间上存在异质性。
P. euphratica is only suitable for growth of the central region, it is nature tree long evolutionary process of surviving species.
胡杨是中亚地区唯一适合生长的乔木，它是大自然漫长进化过程中幸存下来的宝贵物种。
The experiment reveals that the low salinity and the sufficient water supply are the most important for the survival of seedlings of Populus euphratica.
实验结果显示，早期的低盐和充分的水分条件是胡杨幼苗存活的关键。
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