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Tree-ring width based streamflow reconstruction for the Kaidu River originating from the central Tianshan Mountains since A.D. 1700
Dendrochronologia ( IF 2.7 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.dendro.2020.125700
Tongwen Zhang , Yu Liu , Ruibo Zhang , Shulong Yu , Yuting Fan , Huaming Shang , Shengxia Jiang , Li Qin , Heli Zhang

Abstract In this study, a 310-year pSeptember–August record of streamflow (where p denotes a month from the previous year) for the Kaidu River was reconstructed based on tree-ring-width from 137 Schrenk spruces (Picea schrenkiana). Spatial correlation showed that this streamflow reconstruction contains local hydroclimatic signals that approximately overlap the Kaidu River watershed. A comparison between the streamflow reconstruction for the Kaidu River and five tree-ring-based hydrological reconstructions for the surrounding areas revealed similar variations in the low-frequency domain. The results of comparison analyses between this reconstruction and other hydrological reconstructions indicated that the hydrological characteristics of the Kaidu River in the 1910s (the driest decade for the Kaidu River in the last 310 years), and the increasing trend of streamflow that began in the 1980s, might have occurred in other areas of the Tianshan Mountains and covered an even larger area. Furthermore, the highest and lowest values of this reconstructed streamflow series capture five flood or snowfall events (1803, 1804, 1836, 1923, and 1959) and six drought events (1894, 1916, 1917, 1918, 1931, and 1944) that were noted in historical documents. The 10.8- and 3.5–5.4-year cycles of this reconstruction coincided with the observed data and other tree-ring based hydrometeorological reconstructions, and revealed the possible influences of solar activity and the atmosphere–ocean system.

中文翻译:

公元1700年以来发源于天山中部的开都河的基于树轮宽度的水流重建

摘要 在这项研究中,基于 137 棵 Schrenk 云杉 (Picea schrenkiana) 的树轮宽度重建了开都河 310 年 9 月至 8 月的流量记录(其中 p 表示上一年的一个月)。空间相关性表明,该水流重建包含与开都河流域大致重叠的局部水文气候信号。开都河的水流重建与周边地区的五个基于树轮的水文重建之间的比较揭示了低频域的相似变化。本次重建与其他水文重建对比分析结果表明,1910年代(开都河近310年来最干旱的十年)的开都河水文特征,而1980年代开始的水流增加趋势,可能发生在天山的其他地区,覆盖范围更大。此外,这个重建的水流序列的最高和最低值捕获了五个洪水或降雪事件(1803、1804、1836、1923 和 1959)和六个干旱事件(1894、1916、1917、1918、1931 和 1944)。历史文献中记载。这次重建的 10.8 年和 3.5-5.4 年周期与观测数据和其他基于树木年轮的水文气象重建相吻合,揭示了太阳活动和大气-海洋系统的可能影响。这个重建的水流序列的最高和最低值捕获了五个洪水或降雪事件(1803、1804、1836、1923 和 1959)和六个干旱事件(1894、1916、1917、1918、1931 和 1944),这些事件在历史文献。该重建的 10.8 年和 3.5-5.4 年周期与观测数据和其他基于树木年轮的水文气象重建相吻合,揭示了太阳活动和大气-海洋系统的可能影响。这个重建的水流序列的最高和最低值捕获了五个洪水或降雪事件(1803、1804、1836、1923 和 1959)和六个干旱事件(1894、1916、1917、1918、1931 和 1944),这些事件在历史文献。该重建的 10.8 年和 3.5-5.4 年周期与观测数据和其他基于树木年轮的水文气象重建相吻合,揭示了太阳活动和大气-海洋系统的可能影响。
更新日期:2020-06-01
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