Trespass to Land is the illegal entry, the illegal cause of damage and the illegal intervention on your property by another. Based on Common Law, trespass to land also includes any trespass on the airspace of your property as well as any trespass in the ground beneath the surface of your property.
In such cases, you are entitled to seek the termination of the trespassing as well as to seek compensation which is usually calculated based on the rental value of property.