Domestic animals are raised for a variety of purposes. Wild animals are those that are not tamed or domesticated and come from many difference ecosystems. Animals and their products and by-products provide us with food, feed, medicine, research, fiber, shelter, aesthetic needs, work, recreation, industrial and household products. B. Wise management and group conservation practices reduce or prevent soil, water and air degradation. These practices improve plant and animal yields.
Land management requires scientific knowledge and an understanding of ecosystems.
Soil tillage includes many processes that vary by crop, region and society. Erosion control is a primary management goal to ensure sustained productivity of the soil and prevent air and water degradation. A variety of methods are used to improve or maintain soil fertility, recycle organic matter, improve soil-water relations, etc. A healthy plant cover benefits soil through erosion control, adding organic matter and maintaining soil microbial action. The destruction of the plant cover, whether caused by human kind or natural forces, can have a devastating effect on both the local ecosystem and the planet.