Systems and methods for underground water seeping prevention system comprising: a vertical cutting subsystem; a horizontal cutting subsystem; a sheet deployment subsystem; and a control subsystem comprising at least one computing device executing dedicated software.

A system for controlling a moisture content below a surface area, where the system is installable in a recess above which the surface area will be located. The system comprises a substantially water impermeable first layer, a porous second layer and a water control basin which comprises means for controlling a moisture level of the porous second layer. The system enables liquid from the water control basin to be transported through the second layer by utilization of capillary forces, providing for an efficient sub-surface irrigation system which is easy to maintain. A method for providing such an irrigation system is also disclosed.

Systems and methods for underground water seeping prevention system comprising: a vertical cutting subsystem; a horizontal cutting subsystem; a sheet deployment subsystem; and a control subsystem comprising at least one computing device executing dedicated software.

Techniques for reducing water evaporation from soil and other fresh water mediums, such as open bodies of water are provided that include forming a hydrophobic capillary layer thereon. The hydrophobic capillary layer includes a plurality of hydrophobic capillaries configured to push or otherwise direct water provided in the soil or the fresh water medium downward or back into the soil or the fresh water medium while allowing water vapor, oxygen and other gases to pass. This increases the diffusion resistance for the water molecules to pass through the hydrophobic capillary layer and thereby reduces the rate of evaporation of water from the underlying soil or fresh water medium. In an aspect, the hydrophobic capillary layer is formed via soil particles respectively coated with a hydrophobic coating. The reduction to water evaporation from a soil layer covered with the hydrophobic capillary layer results in an increased amount of water retention in the soil layer, which in turn enhances plant growth while conserving water.