论文部分内容阅读
沧州是河北省水资源最短缺的地区之一,多年平均水资源量仅有12.64亿m3,人均水资源量为192m3,仅为全国人均、亩均量的8％和6％,年供需缺水量4～6亿m3。 由于连年干旱,地表水锐减,浅层水又苦又咸,靠每年超采2～4亿m3的深层地下水来维持人民生活和国民经济发展。长期超采地下水,带来一系列问题。一是水位下降,打井费用、浇地成本不断增加。原来深层水埋深都在
Cangzhou is one of the most water-scarce areas in Hebei Province. The average water resource in many years is only 1.264 billion m3, and the per capita water resource is 192m3, only 8% and 6% of the national average. Much water supply and demand Amount of 4 to 600 million m3. Due to successive years of drought, the surface water has dropped sharply and shallow water has become bitter and salty. People’s life and national economic development are maintained by over-exploiting 2 to 400 million cubic meters of deep groundwater every year. Long-term over-exploitation of groundwater, bringing a series of problems. First, the water level down, drilling costs, irrigating costs continue to increase. The original deep water depth are