Research Reporting Series: Environmental protection technology, Volume 2Office of Research and Development, U.S. Environmental Protection Agency, 1972 - Environmental engineering |
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Common terms and phrases
acre Appendix applied asphalt channel check dams Chemical Mulch compaction Conservation CONSTRUCTION RECOMMENDATIONS CURASOL AE damage ditches DIVERSION DIKE drainage drainageways emergency spillway equipment travel erosion and sediment erosion check erosion control established excavation Fabriform feet fiber glass fiber mulch FIGURE fill FILTER BERM FILTER INLET FLEXIBLE DOWNDRAIN floodplains flow gabions gallons Gateway Center Pittsburgh grading grasses groundwater Hittman hydroseeder inches installed INTERCEPTOR DIKE JUTE NETTING legumes maintenance maps material MULCH BLANKET Mulch Tack operations outlet physical features pipe spillway preliminary site evaluation reduce erosion removal Retention Basin revetment riprap riser rock root system root zone runoff water scarification SECTIONAL DOWNDRAIN sediment and erosion sediment basins SEDIMENT RETENTION STRUCTURE slope soil horizon soil surface stabilized area staples stockpile storm drain storm drain inlets STRAW BALE stream bank surface runoff swales Technical Information DEFINITION traffic TREE PROTECTION trench types utilized vegetative cover velocity waterways wood woodchips
Popular passages
Page iii - EPA Review Notice This report has been reviewed by the Environmental Protection Agency and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.
Page 75 - A subspecialization of physical geography concerned with the areal distributions of soil types. soil horizon— A layer of soil or soil material approximately parallel to the land surface and differing from adjacent genetically related layers in physical, chemical, and biological properties or characteristics such as color, structure, texture, consistency, kinds and numbers of organisms present, degree of acidity or alkalinity, etc.
Page 68 - Fertility, soil. The quality of a soil that enables it to provide compounds, in adequate amounts and in proper balance, for the growth of specified plants, when other growth factors, such as light, moisture, temperature and the physical condition of the soil, are favorable.
Page 71 - Includes plant and animal residues at various stages of decomposition, cells and tissues of soil organisms, and substances synthesized by the soil population.
Page 74 - The unconsolidated mineral and organic material on the immediate surface of the earth that serves as a natural medium for the growth of land plants.
Page 67 - The wearing away of the land surface by running water, wind, ice, or other geological agents, including such processes as gravitational creep, (ii) Detachment and movement of soil or rock by water, wind, ice, or gravity.
Page 72 - Permeability, soil. The quality of a soil horizon that enables water or air to move through it, Terms used to describe permeability are as follows : very slow, slow, moderately slow, moderate, moderately rapid, rapid and very rapid, pH value.
Page 74 - The unconsolidated mineral matter on the surface of the earth that has been subjected to and influenced by genetic and environmental factors of parent material, climate...
Page 73 - The part of the precipitation upon a drainage area that is discharged from the area in stream channels. The water that flows off the land surface without sinking in is called surface runoff; that which enters the ground before reaching surface streams is called ground-water runoff or seepage flow from ground water.
Page 64 - The capacity to store water available for use by plants, usually expressed in linear depths of water per unit depth of soil. Commonly defined as the difference between the percentage of soil water at field capacity and the percentage at wilting point. This difference multiplied by the bulk density and divided by 100 gives a value in surface inches of water per inch depth of soil.