The deciduous coniferous forest in the north Daxing'an Mountains of China is the southern extension of the deciduous coniferous forest system of southeastern Siberia. The elevation of Daxing'an Mountains is about 600 to 1,000 meters, with some peaks reaching as high as 1,400 meters. The average temperature in the region is from 1.2 degrees Celsius below zero to five degrees Celsius, and the annual precipitation is 400 to 600 millimeters. The vegetation in the region varies with the rise in altitude, showing distinctly the phenomenon of vertical differentiation. [CRI]