摘要
在全面分析额济纳旗近50年的气候变化及其特征的基础上,进一步探讨了气候变化对自然环境及社会经济系统产生的可能影响.结果表明:近50年来额济纳旗气温持续上升,降水量呈波动式下降,导致沙尘天气增多,气候的总体特征为不断的干旱化;同一时期,该区沙尘天气的发生次数与大风日数的变化趋势具有一致性;额济纳河上游来水量的减少既是气候干旱化的主要原因又是其结果表现之一.
The possible influence of climate changes is discussed on the basis of comprehensively analyzing the changes and its characteristics of Ejina climate in recent fifty years. The results showed：the temperature was on sustainable increase, the rainfall was on fluctuating decrease, the climate was drying; in the same period, the frequency of sandy climate had the same trend with windy days. But decrease of rainfall led to increase of sandy climate,shortage of water amount from upper river is the main factors and result appearance of the climate drying.
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
2005年第4期498-501,共4页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
教育部人文社会科学重大研究项目(02JAZJD840023)
教育部科学技术重点研究项目(地方03027)
内蒙古教育厅重点项目(NJ02033)
关键词
额济纳
气候变化
环境效应
影响
Ejina
climate change
environmental effect
influence
