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August–September Runoff Variation in the Kara Darya River Determined from Juniper (Juniperus turkestanica) Tree Rings in the Pamirs‐Alai Mountains, Kyrgyzstan, Back to 1411 CE
Acta Geologica Sinica-English Edition ( IF 3.5 ) Pub Date : 2020-06-26 , DOI: 10.1111/1755-6724.14533
Heli ZHANG 1 , Qing HE 1 , Feng CHEN 2 , Dogdurbek CHONTOEV 3 , Rysbek SATYLKANOV 3 , Bakytbek ERMENBAEV 3 , Youping CHEN 1
Affiliation  

A 606 year runoff reconstruction of the Kara Darya River was developed, based on the tree‐ring width chronology of Turkestan juniper (Juniperus turkestanica) from the Pamir‐Alai Mountains of Kyrgyzstan. Preliminary comparison between the snow cover variation and these climate/runoff reconstructions found that Central Asian snow cover may have strong associations with large‐scale ocean‐atmosphere‐land circulations. The runoff reconstruction demonstrated that instrumental runoff was not representative of runoff over the past 606 years. The drought of the 1960s‐1990s resulted in low runoff levels during the past 50 years; however, this probably does not represent a worst‐case scenario for the Kara Darya because the runoff reconstruction showed additional extremely low runoff prior to the 20th century. The reconstruction will provide a long‐term perspective on runoff variation in the Kara Darya River basin, aid sustainable water resource management and be useful in guiding expectations of future variations and water resource planning.

中文翻译:

追溯至公元1411年的吉尔吉斯斯坦帕米尔斯-阿来山的杜松(Juniperus turkestanica)年轮确定了卡拉大河的8月至9月径流变化

基于土耳其斯坦杜松(Juniperus turkestanica)的年轮宽度年表,对卡拉达里亚河进行了606年径流重建来自吉尔吉斯斯坦的帕米尔-阿来山脉。对积雪变化和这些气候/径流重建之间的初步比较发现,中亚积雪可能与大规模的海洋-大气-土地循环密切相关。径流重建表明,过去606年中,仪器径流并不代表径流。1960年代至1990年代的干旱导致过去50年的径流水平较低。但是,对于卡拉达里亚而言,这可能并不代表最坏的情况,因为径流重建显示出20世纪之前的额外极低径流。重建工作将为卡拉·达里亚河流域的径流变化提供长期观点,
更新日期:2020-06-26
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