The ICEID or International Conference on Emerging Infectious Diseases is a conference for public health professionals on the subject of emerging infectious diseases. The International Conference on Emerging Infectious Diseases was first convened in 1998; ICEID 2006 marks its fifth occurrence.
Clay type, organic content, and soil structure also influence soil water retention. The maximum amount of water that a given soil can retain is called field capacity, whereas a soil so dry that plants cannot liberate the remaining moisture from the soil particles is said to be at wilting point.
The type of soil in a field determines how much water will percolate through to groundwater and how easily the remaining water can be taken up by plants. Movement of water through soil depends on two factors: the forces acting upon the water molecules and the ease with which they can flow through the soil.