基于雪岭云杉树轮的阿克苏河干流冬季径流重建  

Reconstruction of Aksu River main stream winter runoff based on tree ring chronology of Picea schrenkiana

作　　者：李紫群 孙慧兰[1] 周洪华[2] 周玲 LI Ziqun;SUN Huilan;ZHOU Honghua;ZHOU Ling(College of Geography and Tourism,Xinjiang Normal University,Urumqi 830054,China;State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China)

机构地区：[1]新疆师范大学地理科学与旅游学院,新疆乌鲁木齐830054 [2]中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室,新疆乌鲁木齐830011

出　　处：《水资源保护》2020年第5期65-70,共6页Water Resources Protection

基　　金：新疆维吾尔自治区自然科学基金(2017D01A79)。

摘　　要：基于阿克苏河上游高山区采集的雪岭云杉树轮样芯构建了雪岭云杉树轮宽度年表,结合阿克苏河干流径流数据解析了雪岭云杉长期生长与阿克苏河干流径流关系,并重建了阿克苏河干流1813—2015年冬季径流序列。结果表明:利用雪岭云杉树轮宽度年表重建的阿克苏河干流1813—2015年冬季径流序列模拟值与实测值吻合度较高,重建径流序列稳定可靠;1813—2015年阿克苏河干流冬季多年平均流量为82.19 m^3/s,共出现5次持续丰水期和3次持续枯水期,最长的枯水段持续17年(1943—1959年);阿克苏河干流冬季径流变化存在51 a、29 a、16 a周期,第一主周期为51 a。Tree ring width chronology of Picea schrenkiana is constructed based on the cores collected from alpine forest in Aksu River upper reaches.Combined with the data of Aksu River main stream runoff,the relationship between the long-term growth of Picea schrenkiana and Aksu River main stream runoff is analyzed and the winter runoff of Aksu River in 1813-2015 is reconstructed.The results show that:the simulated data of reconstructed Aksu River main stream winter runoff in 1813-2015 using tree ring chronology of Picea schrenkiana is rather consistent with the predicted data.The reconstructed sequence is stable and reliable;During 1813-2015,the average winter runoff of the Aksu River main stream was 82.19 m^3/s.There were five high flow periods and three low flow periods,in which the longest low flow period lasted 17 a(1943-1959);Aksu River main stream winter runoff has a periodic variation of 51 a,29 a and 16 a.The 51 a is the first main cycle of the runoff.

关 键 词：阿克苏河 树轮宽度年表 雪岭云杉 径流重建 周期变化 

分 类 号：TV121.4[水利工程—水文学及水资源]