【摘要】 基于水环境承载力内涵,从水资源和水环境方面选取人口、城镇化率、灌溉面积、国民生产总值、总氮、总磷、生化需氧量和氨氮等指标,构建具有3层结构的评价指标体系和数学模型,引入层次分析法确定各指标权重,计算了蟒河济源段2012—2017年水环境承载力。结果表明:富营养化指标(TN、TP)对水环境承载力影响最为显著,对水环境承载力影响最大的指标中,大部分都是水质量承载力指标,说明水质量子系统对水环境承载力影响更显著;水环境承载力从2012年的0.396增加到2013年的0.684,然后开始持续下降,一直下降到2016年的0.464;蟒河济源段水环境承载人口、社会与经济发展能力的评价结果与实际相符。更多还原

【Abstract】 Based on the definition of water environment carrying capacity, we selected population, urbanization rate, irrigation area, Gross Domestic Product（GDP）, total nitrogen（TN）, total phosphorus（TP）, chemical oxygen demand（COD） and ammonium（NH₃） as evaluating indicators, and then the evaluating indicator system and the mathematical model of water environment carrying capacity were established. Analytical Hierarchy Process（AHP） was introduced to determine the weight of each indicator and the water environment carrying capacity of Manghe River in Jiyuan section from 2012 to 2017 was calculated. The results show that the eutrophication indicators（TN and TP） have the most significant impact on water environment carrying capacity. Most of the indicators that have great impact on water environment carrying capacity are water quality carrying capacity indicators, which means water quality system plays a more important role on water environment carrying capacity evaluation. The water environment carrying capacity is increased from 0.396 in 2012 to 0.684 in 2013 and then is declined steadily until 0.464. The water environment carrying capacity evaluation results from aspects of population, society and economy are consistent with the actual situation.更多还原