The so-called sponge City said let the city with a sponge-like rain water to prevent waterlogging arid climate then spit drought mitigation rain water through a sponge urban construction system for infiltration, detention storage, purification, with the remaining portion of the outer row of wire sponge geotextile seepage from the city, HDPE geomembrane drainage action is needed to completely prevent water seepage from the water reservoir.
