What is soil, the difference between soil and loam

Soil refers to a layer of loose material on the earth's surface, composed of various granular minerals, organic matter, water, air, microorganisms, etc., which can grow plants. Soil is composed of minerals weathered from rocks, organic matter produced by the decomposition of animal and plant and microbial residues, soil organisms (solid substances), water (liquid phase substances), air (gas phase substances), and oxidized humus.

Solid matter includes soil minerals, organic matter and nutrients obtained by microorganisms through light sterilization. Liquid matter mainly refers to soil moisture. Gases are the air present in the pores of the soil.

These three types of substances in the soil constitute a contradictory unity. They are interconnected, mutually restrictive, provide the necessary living conditions for crops, and are the material basis of soil fertility.

The substances in the soil can be summarized into three parts: the solid part, the liquid part, and the gas part.

Soil minerals are mineral particles of different sizes (sand, soil and gum) formed by the weathering of rocks. There are many types of soil minerals, and the chemical composition is complex, which directly affects the physical and chemical properties of the soil, and is one of the important nutrients of crops.

Solid soil particles composed of minerals and humus are the main body of the soil, accounting for about 50% of the soil volume, and the pores between the solid particles are occupied by gas and water.

The vast majority of soil gas is oxygen and nitrogen entering the atmosphere, and a small part is carbon dioxide and water vapor produced by life activities in the soil. The moisture in the soil enters the soil mainly from the surface and includes many dissolved substances.

There are also various animals, plants, and microorganisms in the soil.

Difference Between Soil and Loam:1. Land is a vertical three-dimensional space composed of natural elements such as climate, landform, rocks, soil, vegetation and hydrology, and soil is only one component of it.

2. Land has strong "socio-economic" attributes, while soil has weak "socio-economic" attributes.

3. Land includes soil, and soil is the main part of land.

4. Land in the narrow sense refers to soil.

Formation and evolution of soils:

Soils are not always there, but have been formed over millions of years. Soil is the product of the comprehensive action of soil-forming factors, and there are different soils in different soil-forming environments at different times.

Whether in crops, forestry or animal husbandry, the first task is the production of green plants. Green plants need basic elements such as sunlight, heat, air, moisture, and nutrients to grow. Soil provides essential nutrients and water for plant growth, and also provides a place for plants to take root and prevent plants from lodging, and soil is the medium for plant growth.

Soil 1 refers to soft soil, arable land, such as soil. Fertile soil. Loam.

2. It means "earth", as opposed to "heaven", for example: Xiaoyang. Worlds apart.

3. Refers to "region, region", e.g. soil boundary. Border on. A poky hold.

Soil is a loose and soft accumulation that has not yet consolidated into rock. It is mainly a product of the Quaternary. The fundamental difference between soil and rock is that soil does not have rigid bonds, the physical state is changeable, and the mechanical strength is low.

Soil is formed by weathering of various rocks. Soil is located on the surface of the earth's crust and is the main geological environment for human engineering and economic activities. Soil, along with rock, is the object of study in engineering geotechnicals.

Soil is a variety of sediments produced by rocks in a complex natural environment that undergoes physical, chemical, and biological weathering, as well as denudation, transport, and sedimentation.

Soil is soft, arable soil.

Soil is a general term, soil is the title of the book, don't think too much, simplify the complex problem. If you are not satisfied, you can go to the encyclopedia to take a closer look. If you simplify complex problems, you will be happy in life.

Noticeably a lot more strokes.