摘要
通过黑河上游不同地区的多条树轮年表及该区域降水量、气温和径流量的统计分析,探讨了黑河上游地区树木年轮与径流量的对应关系,重建了黑河上游地区自1450年以来径流量的变化,并进行了变化特征分析,结果表明:径流量的枯水年份稍高。统计得到13个丰水段,累计年份273年,约占总年数的50.6%,相应的枯水段12个,累计年份267年,约占总年数的49.4%,并发现降水量的变化趋势与径流量的变化趋势一致。径流量的中、短周期(45、39、34、3、2a)变化明显。
Based on three tree ring chronologies and the data of precipitation, temperature and runoff in the source region of Heihe river, the relationship between the tree ring - width chronologies and precipitation and runoff were discussed, and the variation of reconstructed runoff series was also analyzed. The results showed that dry periods were slight more, 13 wet periods and 12dry periods were found in this region, which accounted for 50.6% and 49.4% respectively. The variation of precipitation and runoff presented the same trend. The significant short cycles of 45,39,34,3 and 2a existed in the reconstructed runoff series.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2009年第3期93-97,共5页
Journal of Arid Land Resources and Environment
基金
中国气象局气候变化专项(CCSF2007-28)资助
关键词
黑河上游地区
树木年轮
径流量
重建
the source region of Heihe river
tree ring
runoff
reconstruction
