climate change,tree ring,lake core,ice core,Altay Mountains ,"/> <span>Synthesized Climate Change in the North Altay Mountains in </span><span>the Past 2 000 Years</span>

Arid Zone Research ›› 2019, Vol. 36 ›› Issue (1): 176-185.

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Synthesized Climate Change in the North Altay Mountains in the Past 2 000 Years

ZHANG Dong-liang1,2,LI Yin-bo3,YANG Yun-peng1, LAN Bo4 #br# #br#   

  1. 1. Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,Xinjiang,China;2. Research Center for Ecology and Environment in Central Asia,Chinese Academy of Sciences,Urumqi 830011,Xinjiang,China;3. College of Resources and Environment,Xinjiang University,Urumqi 830046,Xinjiang,China;4. School of Environmental and Chemical Engineering,Chongqing Three Gorges University,Chongqing 404000,China

  • Online:2019-01-15 Published:2019-01-17

Abstract: This study firstly reviewed the achievements about climate change in the north Altay Mountains over the past 2 000 years, and then summarized the geographical consistency of climate information contained in these documents. Mutil proxies (lake cores, tree rings and ice cores) recorded the five important climatic events in the Northern Hemisphere, including the Roman Optimum (0-400 AD),Dark Age Cold Period (400-600 AD),Medieval Warm Period (800-1200 AD),Little Ice Age (1400-1860 AD),and recent warming period (since 1860 AD).These climatic events were mainly modulated by solar activity dominated solar radiation variations in the past 2 000 years and recent warming period since 1860 AD, which were largely attributable to an increase of CO2 concentration in the past 150 years. The precipitation history in the north Altay Mountains over the past 2 000 years indicated that these periods including 0-450,600-800,1050-1300,1650-1860 AD were characterized by high precipitation, and those including 450-600,800-1050,1300-1650,1860-2000 AD were featured by low precipitation. In addition, the combination of temperature and precipitation in the north Altay Mountains over the past 2 000 years did not supported the “cold wet and warm dry” hydrothermal configuration in the arid zone in Central Asia.

Key words: climate change')">

climate change, tree ring, lake core, ice core, Altay Mountains