Shi Haobo, Sun Guili, Wang Guihua, et al. Species Diversity and Community Stability of Desert Riparian Forests in Middle Reaches of Aksu River[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 9-15.
DOI:
Shi Haobo, Sun Guili, Wang Guihua, et al. Species Diversity and Community Stability of Desert Riparian Forests in Middle Reaches of Aksu River[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 9-15. DOI: 10.13961/j.cnki.stbctb.2020.02.002.
Species Diversity and Community Stability of Desert Riparian Forests in Middle Reaches of Aksu River
[Objective] The diversity and stability of the desert riparian forest community in the middle reaches of the Aksu River were studied to explore the complexity of the current community plant composition and the relationship between some environmental factors at the species level
aiming at provide theoretical support for the desert riparian ecosystem restoration.[Methods] Based on the sample survey
the plant community was comprehensively evaluated by pattern analysis method
species diversity index and evenness index
cluster analysis and M.Godron stability measure.[Results] The main plant populations of desert riparian forests in the middle reaches of the Aksu River showed an aggregated distribution pattern
and the community structure was simple
which characterized with single oligo-dominant communities. The species distribution of plant communities was relatively uniform across different locations
but the richness and diversity changed up and down; the desert riparian forest communities could be divided into six categories according to environmental factors
and the plant diversity of three types of plots was low. The specie composition was closely related to soil moisture
and the plant community species diversity was negatively correlated with soil moisture. The higher the water content
the more uniform the plant composition; the current plant community has not reached the stable stage
and there was no direct connection between plant diversity and community stability.[Conclusion] It is difficult to promote the restoration of plant diversity in the region by flood irrigation. Considering Populus euphratica and Tamarix chinensis as the main patterns
planting deep-rooted trees and shrubs to create a local microclimate
and indirectly improving habitats are the better ways for vegetation restoration in desert riparian forests.
Hector A, Hautier Y, Saner P, et al.General stabilizing effects of plant diversity on grassland productivity through population asynchrony and overyielding[J]. Ecology, 2010,91(8):2213-2220.