The role of surface treatment of soil particles in reducing water loss through evaporation

摘要

It is getting more important to save agricultural water and to develop more effective irrigation scheme under the threat of population growth and climate change[1].To effectively maintains soil moisture by suppressing evaporation,plastic film mulch,has been widely used.However,plastic mulch affects surface albedo and blocks water vapor exchange(soilatmosphere),and will have impacts on"local"climate by modifying the surface-atmosphere partitioning of vapor and energy.The goal of the present study is to propose a method for suppressing water evaporation from soil,without using plastic-film mulch system.