Leaching model (soil) Leaching model (soil) A leaching model is a hydrological model by which the leaching with irrigation water of dissolved substances, notably salt, in the soil is described depending on the hydrological regime and the soil's properties. <br> The model may describe the process (1) in time and (2) as a function of amount of water applied. <br> Leaching is often done to "reclaim" saline soil or to "conserve" a favorable salt content of the soil of irrigated land as all irrigation water contains salts. The leaching process in a salty soil to be reclaimed is illustrated in the leaching curves
International Humic Substances Society water, a mineral soil, and organic soils plus reverse osmosis NOM from fresh waters that has not been fractionated. These material are used by research scientists around the world. The IHSS convenes biennial international conferences, which bring together scientists from the soil, coal, freshwater, and marine sciences. International Humic Substances Society The International Humic Substances Society (IHSS) is a scientific society that seeks to advance knowledge and research of natural organic matter (NOM) in soil and water. It was founded in Denver, Colorado, USA, on September 11, 1981 by scientists who saw a need for a society to bring together