中文摘要：

利用HOBO Onset自动温度记录仪于2009年5月～2010年5月对长白山北坡6个海拔梯度的气温,间隔30min进行连续监测。结果显示：长白山年平均气温直减率为0.3℃/100m。平均最高气温及全年日平均气温沿着海拔梯度成二次曲线性变化,而月平均最低气温与海拔呈明显的线性负相关,极端温度沿海拔高度变化不明显。月平均日较差沿着海拔高度显著降低,中低海拔月平均日较差值较大。日平均气温≥0℃、≥5℃和≥10℃的积温沿海拔高度呈二次曲线性变化,且这些积温天数都表现为随海拔升高而降低,变化速率约为4d/100m。

英文摘要：

Air temperature on the northern slope of Mt.Changbai was measured from May 2009 to May 2010 at 30 minute intervals,using 6 sets of HOBO onset micro climatic recorders.The results showed that annual mean temperature had a significant linear relationship with altitudinal gradient with a lapse rate of 0.3℃/100 m.The mean maximum temperature and the annual daily mean temperature showed a change of quadratic curve,while monthly mean minimum temperature showed a strongly conic relationship with elevation.There was no obvious difference for absolute temperature at the varying elevations.The diurnal range of temperature indicated a strongly conic relationship with the altitudinal gradient,with a highest value at the low elevations.The accumulative temperature for ≥0℃,≥5℃ and ≥10℃ exhibited nearly identical conic trend.The initial day of accumulative temperature was delayed 4 days with each 100 m interval elevation increase.