摘要
Warming is significantly affecting ecosystems in dry-warm areas,such as the Middle East[1],but long-term climatic records are often scarce in these regions.One important proxy source of climate data is tree rings,which have contributed to understanding climate changes over the past millennium[1].Under the PAGES2K framework[2],a tree-ring network of the Eurasian continent
Warming is significantly affecting ecosystems in dry-warm areas, such as the Middle East , but long-term climatic records are often scarce in these regions. One important proxy source of climate data is tree rings, which have contributed to understanding climate changes over the past millennium . Under the PAGES2K framework , a tree-ring network of the Eurasian continent was developed during the past decades. Within this region, warm-dry areas （such as the Middle East） are the most vulnerable to climatic warming due to increasing risk of drought stress. However, few long-term temperature records are available in the PAGES2K net- work in the Middle East, which limits the evaluation of recent cli- matic change in the context of long-term climate variability （Fig. la）. The objective of this study was to develop a long-term tree-ring-based temperature reconstruction in Iran and to investi- gate its regional response to large-scale climate changes during the past 700 years.
基金
supported by the International Partnership Program of Chinese Academy of Sciences(131C11KYSB20160061)
the National Natural Science Foundation of China(41525001,41571201)
Chinese Academy of Sciences President’s International Fellowship Initiative(2016VBC055)
Karaj Branch Islamic Azad University for supporting Vilma Bayramzadeh’s sabbatical program in the Institute of Tibetan Plateau Research, Chinese Academy of Sciences
