MINERAL SOIL Meaning and
Definition
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Mineral soil, also known as mineral earth or mineral-rich soil, refers to the topmost layer of the Earth's crust that consists of inorganic material derived from rocks, minerals, and organic matter. It is distinguished from organic soil by containing a relatively low percentage of decomposed plant and animal matter.
Mineral soil is formed over thousands of years through the weathering and erosion of parent rock materials, such as granite, limestone, or sandstone. It is characterized by its mineral composition, consisting of various-sized particles including sand, silt, and clay, with varying proportions of each. This composition determines the physical properties of the soil, including its texture, structure, and drainage capacity.
Mineral soil plays a crucial role in supporting terrestrial ecosystems, serving as a medium for plant growth and providing habitats for various organisms. It contains essential nutrients, such as phosphorus, potassium, and calcium, necessary for plants to thrive. Furthermore, it acts as a reservoir for water and holds moisture required for plants and organisms to survive.
The presence of mineral soil is vital in agriculture and horticulture as it provides a suitable substrate for crop cultivation. Farmers and gardeners often analyze properties of mineral soil, such as pH levels, fertility, and nutrient content, to optimize plant growth and productivity.
Overall, mineral soil is a fundamental component of the Earth's surface, representing a complex mixture of minerals, organic matter, water, and air that sustains life and helps maintain a healthy environment.
Etymology of MINERAL SOIL
The word "mineral" originated from the Latin word "mineralis", which means "pertaining to mines or minerals". It traces back to the Latin word "minera", meaning "ore" or "mine", derived from the verb "minari", meaning "to mine". The word "soil" came from the Old English word "sōl" or "sawol", which referred to the ground, earth, or material for planting.
When combined, "mineral soil" refers to a type of soil rich in minerals, particularly inorganic minerals like rocks, sand, silt, and clay.
