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Geosphere
- The soil system, referred to as the geosphere, is an integral part of the land environment. Composed of soil constituents, water, and air, it is the living environment from which humans, animals, and plants extract most of their food and energy.
www.sciencedirect.com/topics/engineering/soil-system
Nov 8, 2024 · Soil is the biologically active and porous medium that has developed in the uppermost layer of Earth’s crust. It serves as the reservoir of water and nutrients and a medium for the filtration and breakdown of injurious wastes. It also helps in the cycling of carbon and other elements through the global ecosystem.
- Garrison Sposito
May 24, 2024 · Explain basic soil chemistry and relate it to soil fertility. Construct, label, and describe the horizons in a typical soil profile. Describe each of the soil development factors and how they influence properties of soils.
Soil is a mixture of four basic parts – minerals, organic matter, air and water. It serves four primary functions: Medium for plant growth. Soil supplies nutrients and water as well as anchors roots. Water storage and purification system.
Nov 8, 2024 · If a single parent material can be established for an entire soil profile, the soil is termed monogenetic; otherwise, it is polygenetic. An example of polygenetic soils are soils that form on sedimentary rocks or unconsolidated water- or wind-deposited materials.
- Garrison Sposito
Composed of soil constituents, water, and air, it is the living environment from which humans, animals, and plants extract most of their food and energy. In this respect, the soil system is probably the ecosystem that receives the highest degree of anthropogenic stresses.
Jul 29, 2015 · This article introduces many important soil concepts including development, classification, properties (physical, chemical, and biological), quality, and conservation. A general understanding of soil concepts and these interwoven relationships is essential to making sound land management decisions.
Soil consists of horizons near the Earth's surface that, in contrast to the underlying parent material, have been altered by the interactions of climate, relief, and living organisms over time. Commonly, soil grades at its lower boundary to hard rock or to earthy materials virtually devoid of animals, roots, or other marks of biological activity.
