2009—2018年海河流域水资源和水环境质量综合分析

COMPREHENSIVE ANALYSIS OF WATER RESOURCES AND WATER ENVIRONMENT QUALITY IN HAIHE RIVER BASIN DURING 2009 TO 2018

通过对海河流域2009—2018年水资源量、供用水结构、水环境质量状况及废污水排放状况进行梳理,分析了海河流域人均水资源量、用水均衡度、不同水期水质状况及废污水排放特征。结果表明:1)海河流域水资源极其匮乏,人均水资源量不足;2)供水来源主要有地表水、地下水、跨流域调水以及其他水源,其中地下水所占比例逐年降低,其他水源比例呈升高趋势;3)海河流域用水结构往平衡状态不断发展,在朝着生态环境用水方向不断发展;4)海河流域水质整体呈改善趋势,汛期和非汛期差距不大,优良水体比例稳定,劣Ⅴ类河段比例整体降低,但比例仍较高;5)废污水排放量呈增长趋势,其中主要城镇居民生活污水排放量增加。

Based on the analysis of water resources,water supply and consumption water environment quality and wastewater discharge in Haihe River Basin from 2009 to 2018,we analyzed the per capita water resources,the equilibrium,water quality during the two different seasons of wet and dry perio and the characteristics of wastewater discharge,the results show that The water resources is extremely deficient in Haihe River Basin,and the per capita water resources are insufficient.The main sources of water supply are surface water,groundwater,inter basin water transfer and other sources.The proportion of groundwater is decreasing year by year,while the proportion of other water sources is increasing.The water use structure is developing to the balance state and to the direction of ecological environment water.The water quality shows an improvement trend on the whole,and the difference between flood season and non flood season is small,the proportion of excellent water body is stable,and the proportion of the five bad water quality reaches decreases as a whole,but the proportion is still high.The discharge of waste water shows an increasing trend,owing much to the domestic sewage discharge of urban residents.