冰封期水库气温及其冰厚、冰冻天数响应特征研究  

Response Characteristics of Temperature, Ice Thickness and Freezing Days of Reservoir During Freezing Period

作　　者：马令潇 汪天祥[1,2,3] 胡素端 许士国[1] MA Lingxiao;WANG Tianxiang;HU Suduan;XU Shiguo(Institute of Water Environment,School of Water Conservancy Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China;China Water Resources Pearl River Planning Surveying&Designing Co.,Ltd.,Guangzhou,Guangdong 510610,China;Huaiyin Institute of Technology,Jiangsu Intelligent Factory Engineering Research Center,Huaian,Jiangsu 223003,China)

机构地区：[1]大连理工大学水利工程学院水环境研究所,辽宁大连116024 [2]中水珠江规划勘测设计有限公司,广东广州510610 [3]淮阴工学院江苏省智能工厂工程研究中心,江苏淮安223003

出　　处：《水利与建筑工程学报》2020年第2期250-255,共6页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金项目“冰封期水库氮磷多介质迁移过程及其影响机制研究”(51809032)。

摘　　要：冰封期水库环境管理目前相对薄弱。为探索北方地区冰封期气温变化影响下的水库环境变化特征,以辽宁省碧流河水库为例,收集流域1986年-2015年近30年的气温数据,应用冰冻度日法和热通量法估算了水库冰冻天数与最大冰厚,并综合运用趋势分析和小波分析等方法来分析冰封期水库的平均气温、冰冻天数、冰厚的变化特征和周期性规律。结果表明:冰封期碧流河水库的多年平均气温为-4.1℃,近30年降低趋势显著,并呈现8 a时间尺度的周期性;受气温变化影响,冰冻天数和平均冰厚呈增加趋势,对应周期性变化规律分别为8 a和5 a。冰封期水库平均气温与冰冻天数及平均冰厚在趋势性、周期性和突变性特征方面较为一致。Reservoir environmental management during freezing period is not fully analyzed. In order to explore the characteristics of reservoir environment under the influence of low temperature during the ice period in northern China, Biliuhe reservoir was taken as an example. The freezing days and the maximum ice thickness were estimated by the freezing day method and the heat flux method. Meanwhile, Trend analysis and wavelet analysis were used to analyze the variation characteristics and periodicity of the average temperature, the freezing days and the ice thickness during the ice cover period. The results showed that the average temperature of Biliuhe reservoir decreased significantly during the ice cover period, and there was a periodic change rule of 8 years. Under the influence of temperature, the freezing days and average ice thickness both showed a significant increasing trend, and the periodic changes were 8 a and 5 a respectively. The average temperature was consistent with both the freezing days and average ice thickness in the aspects of changing trend, periodicity and mutation.

关 键 词：水库 冰封期 冰厚 冰冻天数 气温 响应特征 

分 类 号：TV62[水利工程—水利水电工程]