Others must refrain from doing many things that would affect the landowner's land. These rights are so complex that it is most likely that no landowner ever knows the exact extent of his rights. The important thing is that whatever those rights are, no one can take them. If they can be taken they are not rights. He is a licensee using the land at someone else's pleasure.
Licensees have little incentive to improve the land to make it more useful.
For as long as I can remember it has been fashionable in certain circles to ridicule property rights as somehow inferior to human rights. This is an empty headed, thoughtless belief. First of all property rights are human rights. Property has no rights. Property rights are the rights of human beings to possess and use property.