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.

Mar 19, 2025 · Soil, the biologically active, porous medium that has developed in the uppermost layer of Earth’s crust. It is one of the principal substrata of life on Earth, serving as a reservoir of water and nutrients, as a medium for the filtration and breakdown of wastes, and as a participant in the cycling of elements.

Oct 31, 2024 · Soil is a complex natural resource that plays a vital role in supporting life on Earth. It acts as a medium for plant growth, a habitat for various organisms, and a crucial component of the Earth's ecosystem. Understanding soil composition and types is essential for sustainable agriculture, land management, and environmental conservation.

Soil、earth、ground和land都可以表示“地面”，但这四个词的用法有很大的区别。一起来看看吧! soil意为：“泥土、土壤”，尤指生长植物的土地。或“国家、国土”。 The trees have rooted in the rich soil. 树木在肥沃的土壤里已经扎根。

Mar 19, 2025 · Soil - Formation, Composition, Structure: As stated at the beginning of this article, soils evolve under the action of biological, climatic, geologic, and topographic influences. The evolution of soils and their properties is called soil formation, and pedologists have identified five fundamental soil formation processes that influence soil ...

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.

Soils are an essential component for life on Earth. They provide a medium for plant growth, habitat for many insects and other organisms, act as filtration systems for surface water, and serve as significant carbon reservoirs.

Soil is the only ecosystem that integrates the four major earth systems — the lithosphere, biosphere, atmosphere, and hydrosphere. It is the living, breathing skin of our earth, and without it life as we know it would not exist.

May 15, 2023 · Soils are the foundation of terrestrial ecosystems. They provide critical services including supplying a substrate and the nutrients necessary for plant growth, retaining moisture from precipitation, filtering contaminants from percolating waters, and acting as a sink of carbon. Healthy soils are key to sustaining both human and ecosystem health.

Nov 18, 2023 · Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to the use and management of soils