秦岭西段小陇山林区气候要素及其变化特征研究

Climatic Elements and Their Variation Characteristics of Xiaolongshan Forest Region in Western Qinling Mountains

以小陇山森林生态站2008-2010年的气象观测数据为依据,进行了流域尺度的森林小气候特征分析。研究结果表明:秦岭西段小陇山林区气温年较差为51.5℃,气温随季节变化比较明显;降水主要集中在7-9月,占全年降水量的63.2%;相对湿度随降水量变化比较明显,降水量多的月份相对湿度较大;年平均风速变化在0.7～1.3m.s-1之间,盛行北风和西南偏南风;大陆性季风气候明显。

Based on the weather observation data from Xiaolongshan Forest Ecosystem Research Station from 2008 to 2010,The forest microclimate characteristics based on watershed scale were examined.The results showed that the annual temperature difference in the region of Xiaolongshan forests was 51.5℃,and the temperature changed clearly with seasons;The precipitation concentrated in July to September,which accounted for 63.2% of the total annual rain fall;Relative humidity changed with precipitation obviously;The annual average wind speed changed between 0.7 to 1.3 m·s^-1,and prevailing wind were north and SSW;Exhibiting typical continental monsoon climate.