%0 Journal Article
%A Wang X.-S.
%A Ma M.-G.
%A Li X.
%A Zhao J.
%A Dong P.
%A Zhou J.
%+ School of Water Resources & Environment, China University of Geosciences, Beijing 100083, China;;Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
%T Groundwater response to leakage of surface water through a thick vadose zone in the middle reaches area of Heihe River Basin, in China
%J Hydrology and Earth System Sciences
%D 2010
%N 117
%V 14
%X The behavior of groundwater response to leakage of surface water in themiddle reaches area of Heihe River Basin is significantly influenced by athick vadose zone. The groundwater regime is a result of two recharge eventsdue to leakage of Heihe River and irrigation water with differentdelay time. A nonlinear leakage model is developed to calculate the monthlyleakage of Heihe River in considering changes of streamflow, river stage andagricultural water utilization. Numerical modeling of variable saturatedflow is carried out to investigate the general behaviors of leakage-rechargeconversion through a thick vadose zone. It is found that the rechargepattern can be approximated by simple reservoir models of leakages under ariver and under an irrigation district with different delay-time andrecession coefficient. A triple-reservoir model of relationship betweensurface water, vadose zone and groundwater is developed. It reproduces thegroundwater regime during 1989–2006 with variable streamflow of Heihe Riverand agric...
%@ 1607-7938
%W CNKI