- 行业: Earth science
- Number of terms: 26251
- Number of blossaries: 0
- Company Profile:
An international scientific society that fosters the transfer of knowledge and practices to sustain global soils. Based in Madison, WI, and founded in 1936, SSSA is the professional home for 6,000+ members dedicated to advancing the field of soil science. It provides information about soils in ...
A jump in effluent from background concentration to the input concentration at 1 pore volume of flow.
Industry:Earth science
(i) A device for measuring percolation and leaching losses from soil under controlled conditions. (ii) A device for measuring gains (irrigation, precipitation, and condensation) and losses (evapotranspiration) from soil.
Industry:Earth science
A great soil group of the intrazonal order and hydromorphic suborder, consisting of soils characterized by hardpans or concretional horizons rich in iron and aluminum (and sometimes manganese) that have formed immediately above the water table.
Industry:Earth science
A soil moisture regime common to Mediterranean climates that have moist cool winters and warm dry summers. A limited amount of water is present but does not occur at optimum periods for plant growth. Irrigation or summer-fallow is commonly necessary for crop production.
Industry:Earth science
(i) The relative adsorption of an ion by the solid phase in relation to the adsorption of other ions. (ii) The relative absorption of an ion by a root in relation to absorption of other ions.
Industry:Earth science
A collection of related landforms; usually the land surface which the eye can comprehend in a single view.
Industry:Earth science
A penetrometer which is pushed into the soil at a constant and slow rate of penetration.
Industry:Earth science
The percentage of water contained in a soil that has been saturated, subjected to, and is in equilibrium with, an applied pressure of one-third atmosphere. Approximately the same as one-third-bar percentage.
Industry:Earth science
