Soil conservation is important because soil is crucial for many aspects of human life as it provides food, filters air and water and helps to decompose biological waste into nutrients for new plant life. Soil can be drained away or contaminated, destroying it for use.
Soil conversation involves working to reduce contamination and depletion. Certain human activities can result in the erosion of soil, such as land being cleared for farming or timber. These practices can also affect the quality of the soil. One way to help increase quality is to rotate crops frequently or to add materials back into the soil.