Soil - Wikipedia
Soil, also commonly referred to as earth, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support the life of plants and soil organisms. Some scientific definitions distinguish dirt from soil by restricting the former term specifically to displaced soil.
Soil | Definition, Importance, Types, Erosion, Composition, & Facts ...
2024年12月20日 · 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. What are the grain sizes in soil?
What is Soil? | Natural Resources Conservation Service
Soils perform vital functions to sustain plant and animal life, regulate water flow, filter and buffer pollutants, cycle nutrients, and provide physical stability and sort. This definition is from the Soil Science Society of America.
What Are Soils? | Learn Science at Scitable - Nature
Soil is a material composed of five ingredients — minerals, soil organic matter, living organisms, gas, and water. Soil minerals are divided into three size classes — clay, silt, and sand...
Soil- Definition, Composition, Properties, Types and Uses
2022年3月25日 · What is Soil? Composition of Soil. Physical & Chemical Properties of Soil. Types of Soil- Sandy, Clay, Silt and Loam Soil. Functions of Soil.
A Beginners Guide To Soil: Definition, Types & Uses · Planet Wild
2024年10月22日 · Soil is a mixture of organic matter and minerals which holds water, air, and microorganisms. It’s the loose top layer that covers most of the land on Earth, and is where many important processes take place. Healthy soil has three main properties:
Soil Facts | Natural Resources Conservation Service
Definitions of soil and soil survey, information on careers, some basics on soil formation and classification, and a soil science glossary.
What is soil? | Britannica
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.
What Is Soil? Scientific Soil Definition and 28 Common Q&A
2020年5月25日 · Soil, according to the NRCS, is the natural body of minerals, organic matter, liquid, and gases on the surface of the land. Earth provides just the right combination of materials for plants to grow and the perfect home for worms, ants, and other bugs that live in the ground.
DOE Explains...Soil - Department of Energy
Soil is a complex mixture of organic material, minerals, air, and water. It ranges from sandy, ocean-weathered beaches to soggy peat bogs and permafrost soils. Soils are a vital component of terrestrial ecosystems, and provide habitat for a large diversity of plants, animals, and microorganisms.