Anthropogenic activities have exerted increasingly large-scale influences on terrestrial ecological systems from the past century, primarily through agriculture; however, the impact of such changes on the hydrologic cycle is poorly understood. As one of the important land use (LU) in the coastal Dogo Plain of the Seto Inland Sea, Japan, paddy fields have been decreasing with the increase in urbanization in recent decades. As the main source of water in the Dogo Plain, groundwater plays an important role in providing people with fresh water and contributing to stream base flow. The purpose of this study is to analyze the water resource and evaluate the effect of LU change on groundwater table fluctuation in this coastal plain. Firstly, the observations of groundwater table and the investigation of water balance were carried out in this alluvial plain. Then, a distributed four-block three-layer water balance model was employed to analyze the groundwater table fluctuation with response to the change of paddy field area. Moreover, the role of paddy field in recharging groundwater in the basin has been clarified. Results show that groundwater table depends not only on rainfall and discharge from rivers, but also on irrigation water and topology of the study area. The net groundwater recharge was positive in irrigation periods whereas that in non-irrigation periods was nearly equal to zero or negative. The results of this study would be helpful to the urban development policy and land use planning decision.
Land use change Paddy field Coastal plain Groundwater recharge
This is a preview of subscription content, log in to check access.
He B, Takase K (2006) Impact of land use change on the groundwater recharge in a coastal plain. Proc JSHWR 160:286–287Google Scholar
He B, Takase K, Wang Y (2005) Simulating groundwater level in a coastal plain based on the SCE parameter optimization model. Proc JSIDRE 160:182–184Google Scholar
He B, Takase K, Wang Y (2006) Regional groundwater prediction model using automatic parameter calibration SCE method for a coastal plain of Seto Inland Sea. Water Resour Manag 21:947–959. doi:10.1007/s11269-006-9066-7CrossRefGoogle Scholar
Knowles TR, Nordstrom P, Klemt WB (1984) Evaluating the ground-water resources of the High Plains of Texas. Texas Department of Water Resources, Austin, p 119, Report 288Google Scholar
Laio F, Porporato A, Fenandeq-Illescas CP, Rodriguez-Iturbe I (2001) Plants in water-controlled ecosystems: active role in hydrologic and response to water stress IV. Discussions of real cases. Adv Water Resour 24(7):745–762. doi:10.1016/S0309-1708(01)00007-0CrossRefGoogle Scholar