Land improvement is when people change something about the land to make it better. For example, if there is an empty area of land, people might build a house, store, or park on it. They might also put in roads, sidewalks, and other things that people need to get around. The land also can be improved by adding things like trees, flowers, and grass so it looks more inviting and pleasant. Land improvement also includes things like fixing drainage so that rainwater doesn't cause floods, or stopping erosion on hillsides, so that the ground does not move away. All of these changes make the land more useful, beautiful, and enjoyable for people to live and work on.