How did the earth come about? What is in the soil?

Plant beans and beans and grow melons and get melons, this sentence must have been heard of by everyone, what you plant in the ground will grow something, but what we mean by land is the land, the land is full of soil, with soil crops can thrive, all plants on land can flourish.

Soil is the product of the combination of five factors: rock, climate, biology, topography and time.

1. Release and loss of nutrients under weathering;

2. Accumulation of organic matter under the action of lower organisms and microorganisms;

3. Under the action of higher organisms, nutrient enrichment (organic matter resynthesizes humus). Organisms play a leading role in the process of soil formation.

Reasonable man's tillage and orange farming management can improve soil fertility and promote soil to become a renewable resource for sustainable use. Irrational use can degrade soil, such as: desertification, salinization, soil erosion, etc.

Soil is an important natural resource, but do you know how it is formed? The process of soil formation is not simple, and in nature, soil formation requires a long period of physical and chemical processes.

Physical Action. Initially, the rock is weathered, and the freeze-thaw cycle and the physical action of plant roots break down into smaller fragments, making the material looser and more void in the open air. This is the first step in the process of soil formation, and loose material can be the basis for the growth of burning clay and organic matter.

Chemical action. Subsequently, chemical processes gradually form anions and cations necessary for the formation of soil, which easily combine with water molecules and oxygen to form various oxides and hydroxyls. These chemical reactions also lead to changes in the pH of the soil substance, which affects the survival and reproduction of life here.

Biological effects. After the second physical and chemical action, organisms begin to get involved. These bacteria, fungi, plants, animals, and humans add nutrients such as organic matter, nitrogen, phosphorus, and potassium by constantly growing, dying, and decomposing.

They also promote the interaction between organisms and the soil by changing the soil structure and maintaining the long-term breathability and water retention capacity of the soil.

The time factor. The process of soil formation takes a long time. In this process, many forces act on the earth, including the atmosphere, water, geological movements, etc.

The rate at which the soil is formed in each region varies according to differences in geographical location, climate, vegetation, geology, etc. But on the whole, it takes thousands of years for soil to form, so it is known as the "page of history".

Exploitation and protection.

Soils are an important part of maintaining ecosystems and global biodiversity, providing water and nutrients to support plant growth. They are also a source of food for humanity and provide habitats for biodiversity.

We need to protect the soil and avoid excessive agricultural and industrial development. Over-exploitation, over-fertilization, over-erosion, or over-intensive planting can damage soil structure, soil microbial ecology, and water retention capacity. Let's protect the soil and protect the planet!