It is through this vegetation that nourishes the humankind and the animal kingdom. The soil … Soil is one of the most important and essential natural resources. Importance (Functions) of Soils Soils are essential for life, in the sense that they provide the medium for plant growth, habitat for many insects and other organisms, act as a filtration system for surface water, carbon store, and maintenance of atmospheric gases. 2. Most life on earth depends on soil as a direct or indirect source of food. Farmers and gardeners know this fact and go to great efforts to conserve it. Soil is an essential natural resource that needs to be used properly and protected. It is the soil that provides nutrition to this plant life. Contrast plant life with human life. Soil is the most important renewable natural resource. Humans cannot manufacture their own food from the four primary resources of soil, air, Identify reasons for studying soil. Soil is a finite resource, meaning its loss and degradation is not recoverable within a human lifespan. The soil is the best natural resource available to us. Organisms found in the soil, such as worms, beetles, bacteria and fungi, obtain food from the soil. As a core component of land resources, agricultural development and ecological sustainability, it is the basis for food, feed, fuel and fibre production and for many critical ecosystem services. It provides nutrients to plants and animals by converting dead organic matter to various nutrients. Soil can also be used as building materials such as adobe and red bricks. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Soil is made up of air, water, minerals and organic material and is one of the most important natural resources on earth. Let’s make it our cause to treat soil everywhere — on our farms, in our forests and grasslands, in our yards and public spaces — as we do it in our gardens. • Soil texture depends on the size of individual soil particles and is determined by the relative proportions of particle sizes that make up the soil. It is vital for our survival on the earth. Soil as a Resource. • Texture names may include loam, sandy clay loam, silt loam, or clay depending upon the percent of sand, silt, and clay in the soil sample. In rural areas, it's easily visible, but in large cities, it's hidden beneath buildings and roads. 1. Soil offers plants the physical support. Plants are important resource of food and fuel and of wood and other by-products that make our other life functions possible. Soil is an important part of the building process. If not done, structural failure can result. Soil is regarded as life and the pillar of agriculture because it is the medium onto which most plants grow. Start studying 3.19 Unit Assessment: Resources, Part 1. Soil compaction, which increases the density of the soil, is done as part of the building process. Discuss human dependence on the soil. Soil is one of the three principal natural resources; the other two are air and water. It is the medium of plant growth and supports different types of living organisms on the earth. Soil is often called the "living skin" of the earth. Let’s keep it healthy, naturally. Discuss the importance of soil and how it affects people. It takes millions of years to form soil upto a few cms in depth. The topsoil which is desirable for the growth of plants is eroded because of human activities like making of homes, roads, buildings and city expansions. The purpose of the compaction is to improve the load support. Importance of the Soil In Agriculture. 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