Let's Rewild the Earth with NFTs

How much will cost a NFT of one hectare (~ 100yards x 100yards)?

Who will be in charge of maintaining that piece of land?

If I pay only once, and there are cost maintaining the land (a fence, planting new trees after a fire or flood, ...), how it will be maintained in the long run?

Why a NFT? Why not just a usual non-profit + a usual database?