论文部分内容阅读
一、野生胡麻生态条件及分布 锡盟位于内蒙古高原东北部,海拔1000—1700米,为浅山丘陵区。属中温带半干旱大陆性气候,日照长,光照充足,年总辐射量为130—140千卡/cm~2,历年日照2900—3100小时,平均气温1.4—1.6℃。无霜期年际变化大,最长126天,最短只有60天,常年无霜期103天。全年降水量300—400mm,雨量多集中在六、七、八月份,约占全年降水量65％以上,其特点是多春旱,夏季水热同季。
First, the wild flax ecological conditions and distribution Ximeng is located in the northeastern Inner Mongolia Plateau, elevation 1000-1700 meters, shallow hills. It is a temperate semi-arid continental climate with long sunshine and sufficient sunshine. The annual total radiation is 130-140 kcal / cm 2, and the annual sunshine duration is 2900-3100 hours with an average temperature of 1.4-1.6 ℃. Frost-free period interannual variation, the longest 126 days, the shortest only 60 days, perennial frost-free period of 103 days. The annual rainfall of 300-400mm, the rainfall concentrated in six, seven, August, accounting for more than 65% of the annual rainfall, which is characterized by more spring drought, summer water and heat season.