The salt secretion of leaves promotes the competitiveness of Reaumuria soongarica in a desert grassland.

ABSTRACT:

Background

For better understanding the mechanism of Reaumuria soongarica community formation in a salt stressed grassland ecosystem, we designed a field experiment to test how leaves salt secretion changes the competitive relationship between species in this plant communities.

Results

Among the three species (R. soongarica, Stipa glareosa and Allium polyrhizum) of the salt stressed grassland ecosystem, the conductivity of R. soongarica rhizosphere soil was the highest in five soil layers (0-55 cm depth). The high soil conductivity can increase the daily salt secretion rate of plant leaves of R. soongarica. In addition, we found the canopy size of R. soongarica was positively related to the distance from S. glareosa or A. polyrhizum. The salt-tolerance of R. soongarica was s

SUBMITTER: Wang CS 

PROVIDER: S-EPMC8876110 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature