This is a piece of land for growing grass. President Hu visited the place in September 1986. The said company that invited him there erected the monument in August 2004. It looks like a tombstone. Some Feng Shui masters also use this to "plant the life base" for a living person. The details involves putting something like finger nails and hair together with some other things in a miniature coffin to be buried underneath the monument. It is said that in this way if the location is a "dragon qi node 龍穴", then the living person will capture the dragon qi to bring him good health and fortune.
However, the location does not qualify to be a "dragon qi node" from a Feng Shui point of view. It is unlikely the work of a Feng Shui master. Then what is it?