青海湖周边年代际气候振动及其对青海高原气候变化的响应

 利用青海高原1958—2005年常规气象观测资料,统计了青海高原、青海湖周边的降水、气温序列,应用气候诊断方法分析了其年代际的变化规律及其成因。结果表明：青海湖周边1958年以来年度和四季平均气温均呈明显的上升趋势,秋、冬两季和20世纪90年代升温比较明显。降水量除秋季呈减少趋势外,年度和其他季节均呈增加的趋势。60—90年代青海湖周边除70年代冬季、80年代秋季、90年代夏季气候类型与青海高原不一致外,其他年代和季节气候类型均与青海高原完全一致,该区域年代际气候的振动主要是由青海高原自然的气候波动和人类活动引起的。

Decadal Climate Vibration of Qinghai Lake Periphery and Its Response to Climate Change of Qinghai Plateau

By using the normal meteorological observatory data of the Qinghai plateau from 1958 to 2005 we made the statistics about precipitation and temperature, and analyzed their change regulation based on climate diagnosis method. The results showed that the seasonal and annual average temperature on Qinghai Lake periphery all obviously rose since 1958, especially the temperature of autumn and winter, and the change in 1990s. Precipitation showed increasing trend except a decreasing trend in autumn. The decadal vibration of climate in the study area is mainly caused by the natural climate change of Qinghai plateau as well as the human activities. The climate types of Qinghai Lake periphery were completely accordant to that of Qinghai Plateau from 1960s to 1990s except that in winter of 1970s, autumn in 1980s and summer in 1990s.