Then your land would likely be priced at the nominal amount per acre x 13 since the demand for that area is low and diffuse. Not a horrible outcome, and, could encourage you to make the land "productive" to at least cover the tax. Tree farms are lovely.

What about conservation? On my land, after clearing a bit around the house for fire safety and "pest" prevention, I kept most of the native rainforest. I planted a few syntropic lines of fruit trees, but they cannot cover the land tax I already pay. All my gardening and land management at large is a money sink (unless we consider touching grass an investment).