permeability of soil
61hydrologic sciences — Introduction the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology. In its widest sense hydrology encompasses the study of the occurrence, the… …
62Atterberg limits — The Atterberg limits are a basic measure of the nature of a fine grained soil. Depending on the water content of the soil, it may appear in four states: solid, semi solid, plastic and liquid. In each state the consistency and behavior of a soil… …
63Edgar Buckingham — Infobox Scientist name = Edgar Buckingham caption = birth date = birth date|1867|7|8|mf=y birth place = Philadelphia, PA death date = death date and age|1940|4|29|1867|7|8|mf=y death place = Washington DC, U.S. residence = U.S. nationality = U.S …
64Deep foundation — A deep foundation installation for a bridge in Napa, California, United States …
65Natchez silt loam — In 1988, the Professional Soil Classifiers Association of Mississippi selected Natchez silt loam soil to represent the soil resources of the State. These soils exist on 171,559 acres (0.56% of state) of landscape in Mississippi. Contents 1… …
66irrigation and drainage — ▪ agriculture Introduction artificial application of water to land and artificial removal of excess water from land, respectively. Some land requires irrigation or drainage before it is possible to use it for any agricultural production; other… …
67Water table — The water table is the level at which the ground water pressure is equal to atmospheric pressure. It may be conveniently visualized as the surface of the ground water in a given vicinity. It usually coincides with the phreatic surface , but can… …
68Lead poisoning — Classification and external resources An X ray demonstrating the characteristic finding of lead poisoning, dense metaphyseal lines. ICD 10 T …
69Mass wasting — at Palo Duro Canyon, West Texas (2002) …
70Septic drain field — Septic drain fields, also called leach fields or leach drains are used to remove contaminants and impurities from the liquid that emerges from the septic tank. A septic tank, the septic drain field, and the associated piping compose a complete… …
