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典型文献
Quantifying the actual sediment load flux into Lake Baikal:A case study of the main tributary-The Selenga River (Russia)
文献摘要:
The significant reduction of sediment load flux into Lake Baikal from its main tributary-the Selenga River began in the mid-1970s,and can be explained by climate change and socio-economic activities.Integrated analysis was done of changes in hydro-meteorological parameters (water discharge,sediment load,air temperature,and predpitation) and their tendencies over periods of 1946-1975 (baseline) and 1976-2017 (warming).Changes in natural processes and human activity were negligible during the baseline period.In the warming period,against the background of an increase in temperature,the water discharge had a slight decreasing trend (-13%) whereas the sediment load has significantly decreased(-53%) these are consist with the precipitation change (-9.4%).Analysis of hydro-climatic data using statistical methods showed that in the warming period the greatest reduction in river sediment runoff occurred in the interval 1996-2017.In this period the sediment load was 768 × 103 t/yr,which is less than the average value during the warming period-1048 × 103 t/yr.Considering sedimentation in the Selenga River delta,the actual sediment load flux from the Selenga River into Lake Baikal amounted to 515 × 103 t/yr,which is three times less than the average multiyear value 1535 × 103 t/yr for observation period (1946-2017).
文献关键词:
作者姓名:
Tatiana Potemkina;Vladimir Potemkin
作者机构:
Limnological Institute of the Siberian Branch of Russian Academy of Sciences,Irkutsk,664033,Russia
引用格式:
[1]Tatiana Potemkina;Vladimir Potemkin-.Quantifying the actual sediment load flux into Lake Baikal:A case study of the main tributary-The Selenga River (Russia))[J].国际泥沙研究(英文版),2022(02):238-247
A类:
Selenga,predpitation
B类:
Quantifying,actual,load,flux,into,Lake,Baikal,case,study,main,tributary,River,Russia,reduction,from,its,began,mid,1970s,explained,by,climate,socio,economic,activities,Integrated,analysis,was,done,changes,hydro,meteorological,parameters,water,discharge,air,temperature,their,tendencies,over,periods,baseline,warming,Changes,natural,processes,human,activity,were,negligible,during,against,background,increase,had,slight,decreasing,trend,whereas,has,significantly,decreased,these,are,consist,precipitation,Analysis,climatic,data,using,statistical,methods,showed,that,greatest,river,runoff,occurred,interval,this,yr,which,less,than,average,value,Considering,sedimentation,delta,amounted,three,times,multiyear,observation
AB值:
0.501688
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