廊坊市位于京津之间,华北平原东北部的海河海域的中下游,国土面积6429平方公里,人口371万,耕地555万亩,该市曾是一个水源丰沛的地区,但随着国民经济的发展、人民生活水平的不断提高和水污染的日益严重,水 Langfang City is located between Beijing and Tianjin, the middle and lower reaches of the Haihe River in the northeast of the North China Plain, with a land area of ​​6,429 km2, a population of 3.71 million and a land area of ​​5.55 million mu. The city was once a water-abundant area, but with the national economy Development, the continuous improvement of people’s living standards and the growing water pollution, water