IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.1
Tree-ring reconstruction of streamflow for Palgong Mountain forested watershed in southeastern South Korea
EWANE Basil Ewane; Heon-Ho LEE
Corresponding AuthorEWANE Basil Ewane
2017-01
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:1Pages:60-76
Subtype期刊论文
AbstractTree-ring chronologies from pine, oak and black locust tree species were used to reconstruct annual streamflow and examine hydrological drought years for Palgong Mountain forested watershed in southeastern South Korea for the period from 1954-2015. The backward elimination multiple regression analysis provided the statistically significant predictor chronologies of streamflow. The final calibration and verification test models accounted for 84.8% and 81.6%, respectively, of the variability in streamflow observed in the gage data. Further verification of the validity of the reconstructed model was undertaken with the Pearson Correlation Coefficient, the Reduction of Error Test, and the Durbin-Watson Statistics and indicated fidelity of the model for reconstructing the annual streamflow. Analyses of the reconstructed annual streamflow indicate that the most persistent years of high flows above the median annual discharge occurred from 1986-2008.This period included 7 single or multiple years of highest flow above the 90th percentile discharge and multiple years of high flows with a time interval of 2-6 years, although with intervening multiple years of low flows below the 10th and 50th percentile. In comparison, the most persistent years of low flows below the median annual discharge occurred from 1954-1985 and 2009-2015. This period included 8 single or multiple years of lowest flow below the 10th percentile discharge and multiple years of low flows with a time interval of 2-9 years, although also with intervening multiple years of high flows above the 50th percentile. No single years of extreme hydrological droughts below the 10th percentile were identified from 1986-2015 whereas a greater proportion of high flows above the 90th percentile occurred during this period. The persistent single or multiple years of lowest flows between 1954 and 1985 were the recent most critical hydrological drought years identified in the Palgong Mountain forested watershed providing supportive evidence of the severity of past hydrological droughts during that period, applicable to the southeastern South Korea where the study watershed is located. This interpretation agrees with the hydrological drought event years identified from 1951 to the early 1980s in a related national study that used precipitation proxy data to reconstruct past occurrences of droughts in Korea.
KeywordClimate Variability Hydrological Droughts High Flows P. Densiflora Q. Mongolica Streamflow Tree Ring
DOI10.1007/s11629-016-3860-3
Indexed BySCI
Language英语
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18312
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.1
Recommended Citation
GB/T 7714
EWANE Basil Ewane,Heon-Ho LEE. Tree-ring reconstruction of streamflow for Palgong Mountain forested watershed in southeastern South Korea[J]. Journal of Mountain Science,2017,14(1):60-76.
APA EWANE Basil Ewane,&Heon-Ho LEE.(2017).Tree-ring reconstruction of streamflow for Palgong Mountain forested watershed in southeastern South Korea.Journal of Mountain Science,14(1),60-76.
MLA EWANE Basil Ewane,et al."Tree-ring reconstruction of streamflow for Palgong Mountain forested watershed in southeastern South Korea".Journal of Mountain Science 14.1(2017):60-76.
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