Soil Quotes (86 quotes)
One amazing substance allowed life to thrive on land
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. Let us take a closer look at each of these: Medium for plant growth: Soils support roots and keep them upright for growth. Soils provide plants with essential minerals and nutrients. Soils provide air for gaseous exchange between roots and atmosphere. Soils protect plants from erosion and other destructive physical, biological and chemical activity. Soils hold water moisture and maintain adequate aeration. Habitat for many insects and other organisms: Insects and microbes very tiny single-cell organisms live in the soils and depend on soils for food and air.
Soil is the lifeblood of agriculture and is fundamental to our survival. Healthy soils are essential for healthy plant growth, food production for human nutrition and ecosystem services such as clean water and air. Healthy soils help to regulate the Earth's climate and store more carbon than all of the world's forests combined. Since European settlement, our Australian landscape has lost two thirds of its soil carbon. Many of our land management practices, including agriculture, forestry and fire, have unwittingly caused significant damage to our landscape.
Why is soil so important? Soil helps to provide much of the food that humans consume. Only 25 percent of the earth's surface is made up of soil and only 10 percent of that soil can be used to grow food. Soil sustains life by helping plants to grow. It also harbors worms, beetles , fungi and bacteria, providing them with the nutrients they need to live. Without soil, there would be nowhere to grow food that is the sustenance of life.
Trees and other plants need healthy soil to thrive, but the scope of soil benefits go beyond planting. Soil influences the life spans of our roads and highways.
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