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通过对内蒙古大兴安岭大扬树林区1981-2010年的气象资料,运用数理统计方法,分析该区域气温、降水量的空间变化特征以及与全球气候变化的对比。结果表明:大扬树林区1981-2010年年均气温上升幅度较明显,年际变化为0.49℃/10 a;年降水量变化为减少趋势,年际变化为13 mm/10 a;年均气温的增长高于全国近50 a的平均水平,各气象要素与全球气候变化总体特征较为一致,均表现出气温升高、降水量减少趋势。
Based on the meteorological data from 1981 to 2010 in Daxing’anling Dalain Forest in Inner Mongolia, the spatial and temporal variations of temperature and precipitation in this area were analyzed by using mathematical statistics method and compared with the global climate change. The results showed that the annual average temperature increase in Dayang Forest Region was more obvious from 1981 to 2010, with an annual variation of 0.49 ℃ / 10 a; the annual precipitation changed to decrease and the annual variation was 13 mm / 10 a; the average annual temperature Higher than the national average of nearly 50 years. All the meteorological elements are in consistent with the overall characteristics of global climate change, showing an increase in temperature and a decrease in precipitation.