Most soil destruction is a direct result of human activity by new inappropriate farming methods and deforestation.

There are other pressures on land, as large areas of the world are put under concrete. Concrete tends to take over the best agricultural land. This all calls for good land management. But you cannot legislate for land management, as you dont own the land.

Despite the crucial importance of land to both the environment and everybody, most land is owned by somebody else. A few wealthy people usually own, or control, most of the land in any country.

They will want to do whatever is in their best interest, which may not be the same as everybody else's. Some pressures can be bought through subsidy mechanisms, such as the CAP. Funding mechanisms encourage particular crops.