Date of this Version
Erforschung biologischer Ressourcen der Mongolei (2012) band 12: 395-404.
An assessment of the water expense efficiency for producing phytomass by dominating species in true (dry) and desert steppes as well as in steppe, true and extremely arid deserts in Mongolia is given. It was revealed that both in steppe and desert plant communities their dominants are presented by species of different efficiency of water utilization. It is possible to state that water expense efficiency is only slightly correlated with type of area distribution of species and its zonal optimum as well with the life form. Different Stipa species are most effective in water utilization in all community types. The water expense by communities in different subzonal stripes of steppes and deserts was calculated and compared with the precipitation amount.