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中文摘要：
利用时间序列分析、克里格插值等数学方法,结合地理信息 系统（G IS）技术,对东北地区近60年气候变化时空分异规律进行了研究。结果表明：1951～2007年近60年间,东北地区年平均气温呈上升趋势;年降雨量呈下降趋势。在空间上有显著的差异,1951～1988年,温度变化较为缓和,上升幅度不大,增温幅度有由西南向东北逐渐增强的趋势;在降水变化上除呼伦贝尔高原、大兴安岭北部地区和伊勒呼里山地略有增加外,东北大部分地区降水都有不同程度的减少,其中辽河平原、千山及环渤海地区降水减少幅度较大。1971-2007年,整个东北地区普遍增温,增温幅度最大的地区分布在呼伦贝尔高原、大、小兴安岭山区及松嫩平原,增温幅度最小的地区主要分布在辽河平原南部;在降水方面,伊勒呼里山地、大、小兴安岭北部、长白山东北部、呼伦贝尔高原西部和内蒙古高原东部地区有小幅度的增加,降水减少幅度较大的地区分布在辽西山地、辽河平原？辽东半岛及千山。该研究为东北区域发展政策的制定、区域生态的保护和气候变化的预测提供科学依据。
英文摘要：
The methods of time series analysis and Creager interpolation, the technology of geographical information system （ GIS）, were adopted to conduct a resaerch into the spatio - temporal differentiation of climatic change about 60 years in the Northeast China. The results indicated that during the approximate 60 years from 1951 to 2007, the annual average temperature in the northeast showed a trend of increase while the annual rain-fall showed a trend towards decline. There was big difference both in time and space. From 1951 to 1988, the temperature changed mildly, the increase scope was not much, and the temperature increases gradually from southwest to northeast. In the change of percipitation, except that in the Hulunbuir Plateau, the northern part of the Greater Hinggan Mountain and the hilly area of the Yilehuli, the rainfall increased slightly. In most areas of the northeast, the rainfall declined in different degrees, of which the rainfall in Liaohe Plain, Qian Mountain and surroundings of Bohai Sea declined sharply. From 1971 to 2007, the temperature had a general increase in the whole northeast region. The most obvious warming scope distributed in the Hulunbuir Plateau, the Greater and Smaller Hinggan Mountains and Songnen Plain; the slightest warming scope mainly distributed in the southern part of Liaohe Plain. In percipitation, the rainfall in the hilly area of Yilehuli, north of the Greater and Smaller Hinggan Mountains, northeast of Changbai Mountain, west of the Hulunbuir Plateau and east of Ner Mongolian plain increased in small scope, the area in which the rainfall declined sharply mainly distributed in Liaoxi Mountainous Region, Liaohe Plain, Liaodong peninsula and Qian Mountain. This study provided the scientific evidence for policy - making of the regional development of the Northeast area, the protection of the regional ecology and forecast of climatic change.
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