- 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 ...
(i) The total mass of living microorganisms in a given volume or mass of soil. (ii) The total weight of all microorganisms in a particular environment.
Industry:Earth science
A cutan consisting of a mixture of clay minerals and iron oxides, hydroxides, or oxyhydroxides.
Industry:Earth science
A soil with a high content of the fine separates, particularly clay, or one with a high drawbar pull and hence difficult to cultivate, especially when wet.
Industry:Earth science
A fine-grained, basic igneous rock composed largely of pyroxene and calcium-rich plagioclase in about equal amounts.
Industry:Earth science
A location which maintains a hydraulic head lower than that of the drainage devices in a soil.
Industry:Earth science
A numerical method that creates an integral form of the differential equation by discretizing the flow domain into a variety of element shapes.
Industry:Earth science
A soil that does not share diagnostic criteria and does not behave or perform similar to the soil being compared.
Industry:Earth science
A general term for a drainage pattern in which stream systems have developed to the point where all parts of the landscape drain into some part of a stream system, the initial or original surfaces have essentially disappeared and the region drains to a common base level.
Industry:Earth science
A method for quantitatively measuring a substance by its effect on the growth of a suitable microorganism, plant, or animal under controlled conditions.
Industry:Earth science
A phyllosilicate mineral or a mineral that imparts plasticity to clay and which harden upon drying or firing.
Industry:Earth science
