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白榆是我国分布范围较广的速生用材树种。由于分布区内自然气候不同,在长期系统发育过程中形成了各种不同的地理种源。本文通过对白榆不同种源某些生理特性研究来探索白榆不同种源的生理变异,从而为白榆种源研究提供科学依据。
Ulmus is widely distributed in China’s growing species of timber. Due to the different natural climate in the distribution area, different kinds of geographical provenance have been formed in the long-term phylogeny. In this paper, the physiological characteristics of different provenances of Ulmus pumila were explored to explore the physiological variation of different provenances of Ulmus pumila, which provided a scientific basis for the research on the provenance of Ulmus pumila.