ХӨРСНИЙ УС-ФИЗИК ШИНЖ, ЧИЙГИЙН ГОРИМ Д.БАТБАЯР* East Mongolain Dark Kastanozem soil water-physical properties and moisture rejime Studued Sandy loamy Dark Kastanozem soil water-physical properties and moisture rejime in case of Tumenzogt soum of Sukhbaatar aimag. Topsoil bulk density in 0-50 cm layers