内蒙古大兴安岭林区地理位置为东经119°36′20″～125°19′50″,北纬47°03′40″～53°20′00″,最高海拔为1745.2m,最低海拔268m,属寒温带大陆性季风气候区,有“高寒禁区”之称。冬季长而寒冷多雪,年平均气温在5℃左右,最低气温可达-52℃,无霜期76～120天。由于上述气候特 The geographic location of Daxinganling in Inner Mongolia is 119 ° 36’20 “125 ° 19’50” east longitude and 47 ° 03’40 “~ 53 ° 20’00” north latitude with the highest elevation of 1745.2m and the lowest altitude of 268m, Continental monsoon climate zone, a “cold forbidden zone,” said. Winter long and cold and snowy, the annual average temperature of about 5 ℃, the minimum temperature up to -52 ℃, frost-free period of 76 to 120 days. Due to the above climate