溶解有机碳对黄龙钙华沉积的影响

Quantitative study on effects of dissolved organic carbon on travertine depositions rate at huanglong scenic spot

为定量研究地表水中溶解有机碳(DOC)浓度变化对黄龙风景区各景点钙华沉积速率的影响,于2014年4月~11月,对景区5个主要景点钙华沉积速率和地表水DOC浓度进行为期近一年的监测,利用SPSS软件对旅客人数、降雨量、溶解有机碳浓度、钙华沉积速率间的相关性进行分析。结果发现,DOC浓度与游客数量呈现明显的正相关变化趋势,而钙华沉积速率与DOC浓度则呈现明显的负相关变化趋势,说明旅游活动已对黄龙地表水DOC浓度产生影响,继而影响钙华沉积;黄龙风景区各景点钙华沉积对DOC浓度变化敏感性大小依次为马蹄海、金砂铺地、迎宾池、争艳池,五彩池。

To study dissolved organic carbon（DOC） quantitative impact on travertine deposition rate,five monitor sites are set at Huanglong scenic spot to monitor DOC concentration and travertine deposition rate from April to November in 2014.The correlation among tourist number,rainfall,DOC concentration and travertine deposition rate are analyzed.The result shows that the relationship between dissolved organic carbon concentration and the tourist number is significantly positive correlation while travertine deposition rate and DOC concentration show significantly negative correlation at the five monitoring points.So we can conclude that tourist activity not only has produced adverse effect on Huanglong Scenic area water quality but also has produced significant inhibition on travertine deposition;and the order of the sensitivity of travertine deposition rate on DOC concentration change is Matihai,Jinshapudi,Yingbichi,Zhengyanchi and Wucaichi,respectively.