Estimation of groundwater recharge using water balance model

Hsin Fu Yeh, Cheng Haw Lee, Jin Fa Chen, Wei Ping Chen

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

The main purpose of this paper is to apply a water balance concept with two models in the Ching - Shui watershed to describe the groundwater recharge. First of all, a soil moisture budget model is established to estimate the infiltration, runoff, evapotranspiration, and groundwater recharge in the watershed, where the moisture content of the soil is tracked through time. Secondly, the groundwater recharge was also estimated by the model of the base-flow-record estimation, with the assumption that groundwater evaporation is negligible. In addition, since the analyzed base-flow trends are high, when executing model analysis, the depths of infiltration estimated by stable-base-flow analysis is used to obtain more reasonable groundwater recharge value. The coefficients of groundwater recharge by the precipitation in the Ching - Shui watershed estimated from the established soil moisture budget model and the base-flow model were 12.40% and 9.92%, respectively. Comparison show the result of both models to be close.

Original languageEnglish
Pages (from-to)153-162
Number of pages10
JournalWater Resources
Volume34
Issue number2
DOIs
Publication statusPublished - 2007 Apr

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

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