1 Stocking Paddocks
Simply running livestock on your paddocks increases soil compaction and decreases beneficial soil micropores through the animal's weight applying pressure to the soil. Some livestock cause more compaction than others, and stocking a soggy paddock increases compaction drastically.
This is why tyre pressures are so important when driving on productive ground. Ground pressure is heavily influenced by tyre pressures. You have control of how much compaction you are causing when working in your fields.
3 Plough Pans
Repeated tillage using soil inversion implements at a constant depth creates a layer of compacted soil below the working depth of the equipment. This inhibits transfer of subsoil moisture and root growth, increasing vulnerability to droughts and deluges.
In certain conditions - such as areas that have seen excessive use of organic fertilisers or mud flats, a soil mineral imbalance can chemically cause compaction layers in the soil. This chemical imbalance needs to be fixed or the compaction will reoccur.