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A study on the estimation of groundwater recharge by agriculture irrigation
Author(s) -
Ting ChehShyh,
Tsou I.,
Lu JungHsiang
Publication year - 2005
Publication title -
irrigation and drainage
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 38
eISSN - 1531-0361
pISSN - 1531-0353
DOI - 10.1002/ird.175
Subject(s) - groundwater recharge , forestry , ponding , groundwater , environmental science , hydrology (agriculture) , irrigation , infiltration (hvac) , water resource management , geography , drainage , geology , ecology , aquifer , geotechnical engineering , biology , meteorology
Principal research emphasis to date has been on the productivity and ecology of paddy field agro‐ecosystems. However, percolation from paddy fields over extended periods, with various ponding depths, can become a significant addition to a groundwater body. This paper discusses the results of a three‐year programme to study groundwater recharge from agriculture irrigation. The physical and chemical properties of the hardpan layer, mechanisms of percolation losses in irrigated fields and an unsaturated/saturated zone three‐dimensional model (FEMWATER) are used to analyse and simulate infiltration processes in paddy fields under varying dry/flooded conditions. Copyright © 2005 John Wiley & Sons, Ltd.