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Soil

Soil, by definition, is a earthly compound comprised of biotic (living) and abiotic (non-living) matter that is formed in several layers over millions of years. It is the very component of the Earth that plants need to root themselves and grow in in order to feed all animal life. There are many different types of soil across the globe for each continent and biome, and each type has its characteristics that depict what plants can grow where, when, and how. Questions and answers about soil can be asked and answered here.

10,730 Questions

What kind of soil is in the country?

I assume you mean countryside. In any case, the particular type of soil in one area is completely dependant on the geology of the surrounding rocks. For example if you are in a peat-rich area your soil will be very rich and slightly alkaline.

What is the most important in the formation of dark fertile soil that is good for farming?

Organic matter decomposition provided by microorganisms is crucial in the formation of dark fertile soil. This process enriches the soil with nutrients, improves its structure, and promotes plant growth. Additionally, factors such as climate, vegetation cover, and topography play a role in the development of fertile soil for farming.

Does loess helps to form very fertile soil?

Yes, loess is a wind-blown sediment that is highly fertile due to its mineral composition and ability to retain moisture. It is often found in areas with rich agriculture, as it provides essential nutrients for plant growth.

How does soil particles size affect soil?

soil particle designate the nomenclature of soil such as gravel, sand, silt & clay and further its engineering properties

The size and shape of soil particles determine the way they settle and stack, and this arrangement affects soil drainage, the mix of microorganisms that can live in the soil, and the types of plants that can grow there.

Coarse soil particles like sand tend to stack like marbles at the top of the soil horizon, while finer soil particles like the flat, pancake-shaped particles of clay settle into a dense layer deeper in the soil profile. Blocky silt particles settle in between, although they can sometimes form hard surface crusts that make water run off, instead of filtering down into the soil.

What are the factors affecting soil compaction?

Factors affecting soil compaction include soil moisture content, soil texture (clay, silt, sand), compaction equipment used, number of passes made over the soil, and soil organic matter content. Soil compaction can lead to reduced soil porosity, decreased root growth, and increased surface runoff.

What are the factors that will effect the permeability of soils?

Factors that can affect the permeability of soils include soil particle size, soil structure, soil compaction, soil porosity, and the presence of organic matter. Coarse soils with larger particles tend to have higher permeability compared to fine soils with smaller particles. Well-structured soils with larger pore spaces typically have higher permeability than poorly structured soils.

Why is it hard for water to be absorbed into compacted soil?

Water is one of the things that can fit itself into most places. It always finds openings in the objects that it is seeping into. When things are pressed together more and more firmly, the harder it gets for water to find an opening.

What is the color of the soil on Prince Edward Island?

The soil on Prince Edward Island is predominantly red due to the high iron oxide content in the soil. This red soil is known as iron-rich soil and is a result of the island's geological history and composition.

Mass movement that involves rock and soil moving as a single unit?

A rockslide is a mass movement that occurs when rocks and soil move as a single unit down a slope. This can happen due to factors such as gravity, weathering, and erosion, leading to the sudden and rapid movement of material. Rockslides can pose significant dangers to infrastructure and communities in their path.

Which biome has no large trees because much of the soil is frozen?

The tundra biome has no large trees because much of the soil is frozen, making it difficult for trees to establish deep root systems. The cold temperatures and short growing season also limit tree growth in this biome.

What are the characteristics used to characterize a soil pedon?

Some characteristics used to characterize a soil pedon include color, texture, structure, consistence, roots, and boundary properties like depth, thickness, and abruptness. These characteristics help in identifying and describing the soil profile for classification and understanding its properties for various land management practices.

What is the number of horizons or soil layers?

A typical soil profile consists of four main horizons: O (organic), A (topsoil), B (subsoil), and C (parent material). The number of horizons can vary depending on factors such as soil type, climate, and landscape conditions.

A layer of soil differing from the layers above and below?

A layer of soil differing from the layers above and below is referred to as a soil horizon. Horizons are characterized by specific properties such as color, texture, structure, and composition that set them apart from neighboring layers. These horizons are important in understanding the formation and properties of soil profiles.

What soil do farmers use on their farm?

Farmers use a variety of soils on their farms, including loam, silt, clay, and sand. The type of soil used depends on the crops being grown, climate conditions, and the specific needs of the plants. Good soil quality is essential for healthy plant growth and high crop yields.

How can silt hold water?

Silt retains water due to its small particle size and high surface area, which allows it to hold onto water molecules through surface tension. The fine grains of silt create a network of interconnected pores that trap water, making it a good medium for retaining moisture.

Forest and mountain soil in India?

Forest soils in India are typically nutrient-rich and well-drained, supporting diverse flora and fauna. Mountain soils, on the other hand, are often shallow, rocky, and prone to erosion due to steep topography. Both soil types play important roles in supporting biodiversity and ecosystem services in India's diverse landscapes.

How deep should top soil bee for grass seed?

For grass seed, it is recommended to have at least 4-6 inches of topsoil for optimal germination and root growth. This depth allows for good seed-to-soil contact and provides ample nutrients and moisture for the seeds to establish a healthy root system. If the topsoil layer is too shallow, it may result in poor grass growth and stress during dry periods.

How can you soil in a sentence?

I dug up the soil to plant the flower seeds I bought.

How do humans cause soil pollution?

Humans cause soil pollution through activities such as dumping of waste materials, use of chemical fertilizers and pesticides in agriculture, improper disposal of industrial waste, and leakage from underground storage tanks. These actions introduce harmful substances into the soil, contaminating it and affecting the quality of soil for plant growth and ecosystem health.

Below the bottom horizon is?

an endless abyss of darkness, void of light or form. It symbolizes the unknown, the mysterious, and the infinite possibilities that lie beyond our current understanding.

How fast is the soil in the Great Plains being replaced?

The rate at which soil is being replaced in the Great Plains can vary depending on factors like erosion and weather patterns. Generally, it can take hundreds to thousands of years for soil to form naturally. However, unsustainable farming practices can deplete soil at a much faster rate than it can be replenished.

Which layer of a soil profile forms first from the bedrock?

The C horizon is the layer of a soil profile that forms first from the bedrock. It is the underlying layer that contains weathered rock fragments and shows the least amount of soil development.

What occurs when a large amount of water mixes with soil and rock?

When a large amount of water mixes with soil and rock, it can lead to erosion, sedimentation, and potentially landslides or mudflows. This process can significantly alter the landscape, impacting ecosystems and potentially causing damage to infrastructure.

Solid bedrock is changed to soil primarily by the process of?

Solid bedrock is changed to soil primarily by the process of weathering. This can occur through physical (e.g. freeze-thaw cycles), chemical (e.g. acid rain), and biological (e.g. plant roots) processes that break down the bedrock into smaller particles over time, eventually forming soil.

What is non-alluvial sand?

Non-alluvial sand refers to sand that is not derived from the erosion and deposition of rocks and sediment by moving water such as rivers or streams. Instead, it is typically formed by other geological processes such as weathering of rocks, volcanic activity, or wind deposition. Non-alluvial sands can vary in composition and properties based on their origin.