以白龙江流域不同海拔的油橄榄园为研究对象，通过分析海拔对油橄榄园气候特征和油橄榄株高、基径和冠幅的影响，研究了不同海拔条件下油橄榄生长指标对气候变化的响应差异。结果表明，油橄榄株高在海拔960～1 083 m范围内随着海拔的升高呈降低趋势；除海拔990 m的油橄榄园外，油橄榄基径、冠幅和冠幅面积(CA)随着海拔的升高均降低。空气湿度、露点温度、气温均随着海拔的升高而降低，平均温度露点差随海拔升高而升高，土壤温度随着海拔升高而降低、随着土层加深而降低。各海拔的油橄榄基径与空气湿度均呈正相关。海拔通过影响气温、空气湿度、土壤温度等气象因素而影响橄榄的生长发育。

Taking the olive groves at different altitudes in the Bailong River Basin as the research object， the differences in the response of the growth indicators of the olives at different altitudes to climate change were analyzed by studying the influence of different altitudes on the climatic characteristics of the olive groves and the height， base diameter and crown width of the olive groves. The results showed that the plant height of Oleaeuropaea showed a decreasing trend in the range of 960～1 083 m as the altitude increased；except for the olive orchard at 990 m above sea level， the base diameter， crown width and the crown area (CA) of the other olive orchards increased with altitude rise. The air humidity， dew point temperature， and air temperature all decrease with the increase in altitude， and the average temperature and dew point difference increases with the increase in altitude. Besides that the soil temperature decreases with the increase in altitude， and decreases with the deepening of the soil layer. The base diameter of Oleaeuropaea at all altitudes was positively correlated with air humidity. Altitude affects the growth and development of olives by affecting meteorological factors such as air temperature， air humidity， and soil temperature.

S565.7