Other centres are located at strategic places around the Kingdom. The Pikul Thong Centre at Narathiwat studies the swampy, acidic land of the southern-most region.
The Phu Phan Centre in Sakhon Nakhon studies soil salinization and irrigation in the country’s biggest region, the Northeast which suffers from endemic drought.
The Krung Kraben Bay Centre in Chantaburi examines the rehabilitation of mangrove forests and coastal areas following massive destruction.
The Huay Sai Centre in Petchaburi studies the rehabilitation of degraded forests and shows villagers, in their turn, how to protect the forests.
When he is in doubt, HM the King will fly over a particular area, armed with aerial photographs and maps of the terrain, noting features as they pass underneath. But, being a good photographer himself, he also takes his own pictures and later juxtaposes them over the charts to obtain a detailed image of the area of his concern which helps in his planning of specific development projects.