黑龙港地区位于海河流域的下游,是从河北省中部到东部沿海的一个辽阔平原。包括河北省衡水、沧州地区的全部,邢台、邯郸地区的东部和天津市郊区的南部,共47个县、市。耕地约占河北省全省的1/3,人口约占全省的1/4,而在海河治理前,粮食产量仅占全省的1/5,年年吃国家统销粮。从1953年到1967年,国家共供应粮食87亿多 Located in the lower reaches of the Haihe River Basin, Heilongjiang is a vast plain from the central part of Hebei Province to the eastern coast. Including Hengshui in Hebei Province, Cangzhou Prefecture in all, Xingtai, Handan and eastern suburbs of Tianjin, a total of 47 counties and cities. Cultivated land accounts for about 1/3 of the province’s population in Hebei Province, with a population of about 1/4 of the province’s population. Before the Haihe River was reformed, its grain output only accounted for one-fifth of the province’s total output. From 1953 to 1967, the country supplied a total of more than 8.7 billion grains