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通过研究黄龙钙华滩流处的沉积速率和气候要素之间的关系,发现钙华沉积速率对气候重建的指示意义,为利用黄龙古钙华重建当地的古气候奠定了理论依据。通过现场采集水样和钙华样品,进行水化学分析,并进行沉积速率的监测,研究黄龙内生钙华的沉积速率在时间上的变化及其主要控制机理,找出影响钙华沉积的主要因素,发现在雨季沉积速率具有显著的降水量效应,即在雨季降水较多的时间钙华的沉积速率受地表水和雨后坡面流的稀释作用也降低,旱季钙华的沉积速率主要受水温的影响。钙华沉积速率的季节变化与气候(降雨、水温)有很好的线性关系:雨季时以降水量控制为主,旱季时以水温控制为主。
Through the study of the relationship between the sedimentation rate of Huanglong tracer beach and the climatic elements, we find the significance of travertine deposition rate to the climate reconstruction, which lays a theoretical foundation for the reconstruction of paleoclimate in the Yellow Dragon. Water samples and travertine samples were collected from the field for water chemical analysis and deposition rate monitoring to study the temporal changes of the deposition rate of the Huanglong endophytic travertine and its main control mechanism to find out the main factors influencing travertine sedimentation It is found that the sedimentation rate has significant precipitation effect during the rainy season. That is, the sedimentation rate of travertine decreases with the surface water and the slope flow after rain. The deposition rate of travertine in dry season is mainly affected Effect of water temperature. The seasonal variation of travertine deposition rate has a good linear relationship with the climate (rainfall, water temperature): the precipitation is dominated in the rainy season and the water temperature is dominant in the dry season.