摘要
根据近55年水文气象资料，统计分析了湟水径流量的变化特点及其影响因子，并依据降水、气温、蒸发等主要影响因子与径流量的关系，建立了天然径流量计算公式，计算分析了气候变化和人类活动对湟水径流量的影响。结果表明，随着暖干化趋势加剧，20世纪80年代以来气候变化对湟水径流量的影响幅度不断增大，在80年代、90年代，气候变化和人类活动对径流影响量的比例分别约为2：8与3：7，而2000-2004年影响量的比例已接近5：5。
According to 55-year hydrometeorological data,the paper analyzes the characteristics of runoff variation and its affecting factor of the Huangshui River and establishes a formula for natural runoff calculation and analyzes the influence of climate variation and human activities to the runoff of Huangshui River based on the relations of main affecting factors of precipitation,temperature and evaporation and runoff.The outcomes show that along with the worse trend of arid and warm,the influence of climate variation to the runoff is getting greater since 1980's.The proportion of the influence of climate variation and human activities to the runoff is 2 ∶8 and 3 ∶7 respectively in 1980's and 1990's,while the proportion is almost 5 ∶5 in the period of 2000~2004.
出处
《人民黄河》
CAS
北大核心
2006年第12期39-41,共3页
Yellow River
基金
国家自然科学基金委员会
黄河水利委员会黄河联合研究基金资助项目(50279010)
关键词
降水量
气温
气候变化
径流量
湟水
precipitation,temperature,climate variation,runoff depth,Huangshui River
