THE Hongkong port's land area must increase by 1,200 hectares by 2006, says the Port Development Board. In the PDB 1992 annual report, secretary Tony Clark says that to create this land, 250 million tonnes of earth, rock and seabed sand must be moved by an army of workers and a huge fleet of dredgers and earth-moving equipment. ''Even more reclamation will be necessary by the time the present port plans, including 17 new container berths, are completed by 2011,'' he said. However, the PDB is reviewing previous forecasts again this year, taking into consideration all recent developments. It would be an engineering feat in its own way far bigger than the new Chek Lap Kok airport with which it would share transport and other links, Mr Clark said. Despite its size, the proposed new port had been overshadowed by the airport largely because the airport was more glamorous and more readily captured the imagination and the headlines, he said. He said that when the port project was completed, a series of connected islands would thrust southeast from Lantau Island into the Western Harbour. These man-made islands would house four multi-berth container terminals in addition to the present seven terminals at Kwai Chung, he added. Mr Clark said continued development in Hongkong, including the construction of Terminal 9 on Tsing Yi island would mean that 12 hectares of land now used to handle containers loaded and off-loaded midstream would be lost. This was expected to put great pressure on midstream activities, which grew by 60 per cent last year to 2.55 million TEUs. The PDB has identified Area 16 in Tuen Mun as a temporary back-up site by the midstream for a year or two. But objections from the residents and district board members have to be overcome before it can be used by the mid-stream.