玛纳斯河流域地表径流过程时空分异特征研究

新疆内陆河流域干旱缺水。在全球气候变化影响下,流域水资源不确定性增加。以玛纳斯河流域为研究典型,依据流域内塔西河、玛纳斯河、金沟河以及八音沟河出山口水文站1957-2012年径流量资料,统计分析了56年来玛纳斯河流域各河流年径流量的多年变化规律以及空间变异特征。研究结果表明,玛纳斯河流域内各河流年径流过程大致存在4~5个时间尺度的周期性规律,其中8~10 a和16~20 a左右的周期性变化起作用主导。通过泊松相关分析,基本可以认定,流域4条河流年径流过程存在着正相关性,也即存在着同步变化规律。

Rule of Evolvement of Change of Temperature,Rainoff and Runoff in Manasi River Basin

The inland river basin of Xinjiang is arid. Increase in the global climate change under the influence of the uncertainty of water resources. Taking Manasi River Basin as the research of typical watershed, hydrological stations at Taxi River, Manasi River, Jingou River and the Bayingou Rriver at 1957 -2012 annual runoff data, statistical analysis 56a Manasi river the river annual runoff chan- ges over the years and spatial variation features. Research results show that： the law of the periodic there was 4 -5 time scale of the fluvial annual runoff process in Manasi River Basin. 8 - 10 years and periodic variation of 16 - 20 years of work by leading. Poisson correlation analysis, basically can be identified, river four river annual runoff process there is a positive correlation, i. e. There is syn- chronous variation.