Topics: Agricultural land drainage, Land drainage design, surface drainage method, subsurface drainage method, parallel lateral ditch system, cross-slope ditch system, Darcy's law, Dupuit assumption, land grading, bedding method

Topics: Irrigation, soil drainage, hydrology, agriculture irrigation, irrigation frequency, irrigation methods, drip system irrigation, flood system irrigation, drainage, evapotranspiration, hydrologic equation, precipitation, evaporation, irrigation scheduling, water gain, water loss, water conveyance efficiency, irrigation period, water application efficiency, hydrogeology, marine hydrology

Topics: hydrologic cycle, hydrograph, drainage, drainage basin system

Topics: Building drainage, water supply, water distribution, cistern

Topics: hydraulic structures, clam site, principal spillway, reservoir, seepeage, dredging, foundation, dam, flooding, drainage, gravity dam, river training, siphon, siphon spillway, river training, manning's formula, Kaplan turbine

Topics: garden, garden design, storm water, rain garden, water management, drainage basin analysis, basin

Topics: soil, soil management, soil productivity, water drainage, irrigation

Topics: erosion control, crop rotation, organic matter maintenance, mulching systems, soil acidity, soil moisture tension, drainage, irrigation systems

Topics: Soil cartography, contour, drainage, map, database management, spatial data, digital image processing, raster data, vector data

Topics: Forestry engineering, soil suitability selection, erosion control, surface drainage control, site planning