runoff irrigation
1.The approach for dealing with the upper surface boundary conditions to adapt the complicated situation such as infiltration of precipitation or irrigation, surface ponding, runoff formation, evaporation and evaportanspiration as well as the alternative occurrence of these situations are proposed.
2.The non-irrigation plantation in moving sand dune and sandy girder areas should adopt some biological and engineering measures such as runoff-collecting to improve effects of rainfall, reduce losses by evaporation and depth leaking, and improving circulation and transformation of water in sandy plantation ecology system by reasonable allocation.
3.The purpose of this web site is to share my experiences with workers in any country on water logging in agricultural lands, irrigation induced soil salinity, subsurface drainage for agriculture (horizontal and vertical), reuse of groundwater, ground-water hydraulics, (geo)hydrology, rainfall and surface runoff relations, reclamation and improvement of water logged saline, salty, sodic alkaline, and acid sulphate soils, plant growth, crop production and responses as well as statistical analysis consisting of segmented linear regression and cumulative frequency distributions.
