In the shot a barn is being blown to pieces resulting in a massive shock wave. The exploding barn was a model which was composited in later.
This landscape doesn't exist anywhere so in this matte painting I stitched together several landscape elements from photos and removed some unwanted objects:

Then I added a layer of the damaged field after the explosion - which actually is more or less invisible in the final shot because of the shock wave effects:

The shot can be seen at the end of this trailer. For some reason it's running at double speed in this clip.