地理学报 ›› 1990, Vol. 57 ›› Issue (1): 1-13.doi: 10.11821/xb199001001

• 论文 •    下一篇

山地冰川与湖泊萎缩所指示的亚洲中部气候干暖化趋势与未来展望

施雅风   

  1. 中国科学院兰州冰川冻土所,中国科学院南京地理与湖泊所
  • 出版日期:1990-01-15 发布日期:1990-01-15
  • 基金资助:
    国家自然科学基金的资助

GLACIER RECESSION AND LAKE SHRINKAGE INDICATING THE CLIMATIC WARMING AND DRYING TREND IN CENTRAL ASIA

Shi Yafeng   

  1. Lanzhou Institute of Glaciology and Geocryology
  • Online:1990-01-15 Published:1990-01-15

摘要: 天山北坡乌鲁木齐河1号冰川与土尤克苏冰川物质平衡观察表示80年代比以前出现大的亏损。青海湖与伊赛克湖在近百年一直处于萎缩状态。从小冰期最盛时以来,乌鲁木齐河谷中冰川面积已缩去44%。上述及其他冰川与湖泊变化证据清楚地指示本世纪气候干暖化趋势增强了,并可能延续到下世纪初。但如由于CO2及其他痕量气体增加所致的温室效应使下世纪重现全新世早、中期那样的高温,则亚洲中部有可能转为潮湿。

关键词: 冰川物质平衡, 湖水位变化, 小冰期, 全新世高温期, 气候干暖化

Abstract: Mass balance observations on Urumqi River, No.l Glacier and Tuyuksu Glacier in Tian-span show a large deficit during the 1980's as compared with the decades before. The Qinghai Lake in Northeastern Qinghai-xizang (Tibet) Plateau and the Issyk-kul Lake in Soviet Tianshan have been continuously shrinking during the past few centuries. Since the maximum of the Little Ice Age which occurred mainly in the 18th century, glaciers have decreased in area by aboue 44% in the Urumqi valley. These data and other evidence of glaciers, lakes, etc. clearly indicate that the climatic warming and drying tendency grows stronger in this century and would pos-sibly persist to the early decades of next century. T'he growing greenhouse effect due to the incr-ease of CO2 and other related gases will enhance this tendency in the near future. However, should the high temperature period of the early and middle Holocene reappear, the climate mi-ght become humid.

Key words: Mass balance of glacier, Lake level change, Little glacial age, Optimum, Dry-warming trends