The publication of this Handbook was supported by the Russian Federation

The 1
st
 year after planting
(2004)
The 3
rd
 year after planting
(2006)
The 8
th
 year after planting
(2011)
Fig. 5.5.1. The experimental site for agroforestry, Khorezm, Uzbekistan [18]

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76
Soil salinity manаgement manual | Part I.Soil salinity management in the Eurasian Region 
Ecosystem services: biodrainage and salinization control. The ability of  these tree species 
to efficiently uptake saline groundwater is the most important argument for the development of  
agroforestry on marginal lands. The research results presented below are for 5-year-old trees. The 
plantations were characterized by a total transpiration of  13 mm/day during the growing season. 
Russian olive (E. angustifolia) had the highest transpiration capacity of  1300 mm within the growing 
season in the absence of  irrigation, which is comparable with the annual transpiration of  Australian 
eucalyptus, which is one of  the best known tree species used for biodrainage purposes.
The salt concentration within the root zone of  trees increased from 4 dSm/m (after soil leaching 
before planting) to 12 dSm/m. Therefore, the long-term use of  tree plantations will require soil 
leaching once in every ten years. The studied species showed a high productivity despite the 
increased salt concentration in soil due to their high tolerance to salts.