The publication of this Handbook was supported by the Russian Federation

Sanadze, Ekaterina Vasilievna – Doctor of  Agricultural Sciences, Ministry of  Agriculture of  
Georgia (Tbilisi, Georgia), specialist in the field of  soil genesis and the rational use of  soil resources. 
E-mail: [e-mail], [e-mail]
Sapanov, Mamai Kazievich – Doctor of  Biological Sciences, Institute of  Forest Science RAS 
(Uspenskoe, Moscow Region, Russia), specialist in the field of  adaptive forest management under 
arid conditions, agroforestry, the assessment of  climatic influences on vegetation and soil cover and 
the hydrology of  the Northern Caspian Region. E-mail: [e-mail]