基于红皮云杉(Picea koraiensis)重建大兴安岭南麓历史径流量  

Reconstruction of historical runoff in the southern foothills of the Da Hinggan Ling Mountains based on Picea koraiensis

作　　者：魏英楠 马龙[1] 孙柏林 张晶 WEI Yingnan;MA Long;SUN Bolin;ZHANG Jing(Water Conservancy and Civil Engineering College of Inner Mongolia Agricultural University,Hohhot 010018,Inner Mongolia,China)

机构地区：[1]内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特010018

出　　处：《干旱区地理》2023年第8期1269-1278,共10页Arid Land Geography

基　　金：国家自然科学基金(52069019,51869016,51669016);内蒙古自治区“草原英才”工程资助。

摘　　要：基于红皮云杉(Picea koraiensis)年轮宽度标准化年表重建了大兴安岭南麓贡格尔河流域1845—2016年历史径流量序列。结果表明:(1)贡格尔河流域在过去172 a共经历1853—1855年、2000—2010年2个枯水期和1869—1873年、1911—1918年、1952—1958年3个丰水期,丰水年及枯水年占比分别为17.4%和10.5%。(2)重建序列存在显著的3 a、7~12 a、15~22 a及30 a周期,研究区水文变化受全球大尺度气候环流活动的影响。丰、枯水期与该地区历史典籍记载的自然灾害高度重合,与附近其他重建结果相关性显著,重建方程稳定可靠。研究结果丰富了大兴安岭地区树木年轮数据库,为区域长历史时期水文变化的研究提供参考。To understand and master the historical hydrological change patterns and characteristics of the Da Hinggan Ling Mountains,a standardized chronology of tree annual rings width was constructed by Picea koraiensis.After analyzing the response relationships of chronology to hydrological and climatic factors such as temperature and runoff,it was found that runoff was the main controlling factor affecting the radial growth of Picea koraiensis,hence the historical runoff series of Gonger River drainage area from 1845 to 2016 were reconstructed using tree-ring width chronology.The reconstruction equations are accurate and reliable and can be used in the reconstruction of historical runoff.The reconstruction results showed that the runoff sequence of the Gonger drainage area showed an overall decreasing trend,with abrupt changes in 1849,1854 and 1993,experienced a total of seven drying periods and six wetting periods in the last 172 years,there were two dry seasons(1853—1855 and 2000—2010)and three wet seasons(1869—1873,1911—1918 and 1952—1958),the proportion of wet years and dry years was 17.4%and 10.5%.The reconstructed sequences have significant cycles of 3 a,7-12 a,15-22 a and 30 a,the hydroclimate of the study area is influenced by global large-scale activities.The wet and dry periods are generally consistent with the historical canonical records of natural disasters in the region,and correlate significantly with other reconstruction results in the vicinity.The innovation of this paper is to reconstruct the runoff variation characteristics of the southern Da Hinggan Ling Mountains in the last two centuries by using the precious tree species Picea koraiensis,which enriches the tree-ring database in this area and provides a reference for the study of hydrological changes in the region during long historical periods.

关 键 词：红皮云杉 树木年轮 径流量重建 大兴安岭 

分 类 号：P333.1[天文地球—水文科学]