Huaihe is one of the seven major rivers in China, stretching some 1,000 kilometers in length. The Huaihe River Valley, covering Henan, Hubei, Anhui, Jiangsu, and Shandong provinces, was historically affected by frequent floods. In October 1950, the Government Administration Council of the Central People's Government issued the Decision on Harnessing the Huaihe River, heralding new China's era of controlling the flood-prone watercourse. Over the past six decades, remarkable results have been achieved. Nanwan Reservoir, located on the Shihe River (a tributary of the Huaihe), is one of the first large reservoirs built in the early years of new China. Completed in 1955 with a drainage area of 1,100 square kilometers, it mainly functions in flood control and irrigation, and can also be used for water supply and electricity generation.
China National Philatelic Corporation will release four FDCs.