- 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 ...
An atom or atomic group that is negatively charged because of a gain in electrons.
Industry:Earth science
Alfisols that have formed in cool places. Boralfs have frigid or cryic but not pergelic temperature regimes, and have udic moisture regimes. Boralfs are not saturated with water for periods long enough to limit their use for most crops.
Industry:Earth science
Previous to 1994 this term was used to indicate Aridisols that have a cambic, calcic, petrocalcic, gypsic, or salic horizon or a duripan but that lack an argillic or natric horizon. The term was dropped as a suborder in the 1994 revision of the USDA, Soil taxonomy.
Industry:Earth science
An atom or atomic group that is positively charged because of a loss in electrons.
Industry:Earth science
Massive ice in a soil pedon, which is relatively free of soil particles.
Industry:Earth science
Having concentrations of nutrients optimal, or nearly so, for plant, animal, or microbial growth. (Said of nutrient or soil solutions and bodies of water. ) The term literally means "self-feeding.
Industry:Earth science
A zonal great soil group consisting of soils formed under temperate to cool-temperate, humid regions under tall grass vegetation.
Industry:Earth science
An accumulation of drift, with an initial topographic expression of its own, built chiefly by the direct action of glacial ice. Examples are end, ground, lateral, recessional, and terminal moraines.
Industry:Earth science
Probe, with radioactive source, that measures soil water content through reflection of scattered neutrons by hydrogen atoms in soil water.
Industry:Earth science
