近43a来小兴安岭气候变化趋势特征及对林区生态环境的影响

The effect of the climate change on the environment in forty three years in little XinAn mountain

通过对黑龙江省小兴安岭林区近43a来气候变化的趋势特征进行定量分析,结果表明:年平均气温、最低气温、最高气温、蒸发量呈增加趋势;年降水量、日照时数、辐射量、日平均风速呈减少趋势;日平均相对湿度的年变率呈小幅波动,变化不大。根据小兴安岭林区气候趋势变化特征、森林覆盖率、森林质量等因素,初步探讨了林区气候变化趋势特征与林区生态环境的相互影响。

According to analyzing the climate change of 43a, we know the increasing of the temperature, low temperature and high temperature; the decreasing of the rain, the sunshine-hour, and the wind speed; no changing of the relative humidity. By studying these changes, we can know the effect of the climate on the environment.