以Budyko 曲線分解法與氣候彈性法探討濁水溪沖積扇逕流量改變原因之研究

Translated title of the contribution: Evaluating Runoff Variation in the Zhuoshui Alluvial Fan Through the Decomposition of the Budyko Curve and Use of Climate Elasticity Methods

Hsin Yu Chen, Hsin Fu Yeh

Research output: Contribution to journalArticlepeer-review

Abstract

Two primary factors that alter the hydrological cycle are climate change and anthropogenic activity. Runoff is a component of the hydrological cycle as well as a measure of sustainable water availability. Therefore, assessing runoff variation has become a research topic of interest. In this study, we first used statistical nonparametric methods to analyze the runoff trend and change points during 1980-2018 for the Zhuoshui Alluvial Fan. We then quantified the effects of runoff variation by decomposing the Budyko curve and using climate elasticity methods, which are used in attribution analysis. We used the most applicable Budyko model for the Zhuoshui Alluvial Fan, and the results indicated that the runoff series significantly changed in 2003. We determined that the main reason for the runoff variation was climate change and that the change in runoff was most sensitive to changes in precipitation. Finally, the modeling results were consistent with the observation of decreased vegetation coverage after 2003. The results of this study are expected to serve as a reference for water resource and land use management in the area covered by the Zhuoshui Alluvial Fan.

Translated title of the contributionEvaluating Runoff Variation in the Zhuoshui Alluvial Fan Through the Decomposition of the Budyko Curve and Use of Climate Elasticity Methods
Original languageChinese (Traditional)
Pages (from-to)89-99
Number of pages11
JournalJournal of Chinese Soil and Water Conservation
Volume52
Issue number2
DOIs
Publication statusPublished - 2021 Mar

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Geotechnical Engineering and Engineering Geology
  • Soil Science
  • Earth-Surface Processes

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