在我国内蒙古自治区克什克腾旗的西北 ,浑善达克沙地的东缘白音敖包地区分布着一片云杉林 ,面积１．５万余公顷 ,林龄１２０年左右 ,老的在２００年以上 ,林内外有大量天然更新的大大小小的云杉幼树。这里气候寒冷 ,最低气温达零下３６℃ ,无霜期仅７８天。降水量虽达４００毫? In the northwest of the Keshiketeng Banner in the Inner Mongolia Autonomous Region, there is a spruce forest distributed in the Baiyin Aobao area on the eastern margin of the Hunshandake Sandy Land with an area of ​​about 15,000 hectares. The age was about 120 years and the old was at 200 Years, there are a large number of large and small natural renewal of spruce saplings. Here the climate is cold, the minimum temperature of minus 36 ℃, frost-free period of only 78 days. Although the amount of precipitation up to 400?