黄龙景区钙华沉积对磷酸盐浓度变化敏感性定量研究

Quantitative Study on Sensitivity of Travertine Depositions Rate to Phosphate Concentration Change at Huanglong Scenic Area

为定量研究黄龙地表水中磷酸盐浓度变化对钙华沉积速率的影响,明确景区各景点钙华沉积速率对磷酸盐浓度变化的敏感性大小,于6月下旬~11月上旬,在黄龙风景区5个主要景点设置监测点,定期采集钙华沉积样和磷酸盐水样,利用SPSS统计软件对实验数据进行分析。结果发现,黄龙风景区各景点地表水中磷酸盐浓度与钙华沉积速率皆呈显著负相关性,说明地表水中磷酸盐浓度变化可能已对钙华沉积产生影响。景区各景点钙华沉积速率对磷酸盐浓度变化的敏感性大小依次是金砂铺地、马蹄海、迎宾池、五彩池、争艳池。

To study quantitative effect of phosphate concentration change on travertine deposition rate and understand the sensitivity of travertine deposition rate to phosphate concentration change at Huanglong scenic area, five sampling sites were set up at the main scenic spots, a series of travertine deposit samples and water samples were collected regularly from late June to early November. The travertine deposition rates on the spots were measured by weighing method, and phosphate con- centralion of tile water samples were determined by ion chromatography. The experimental data were analyzed by SPSS statis- tical analysis software. The result indicated that phosphate concentration and travertine deposition rate show negative correla- tion at all sampling sites, this suggests that the change of phosphate concentration in surface water may have significantly im- pacts on the travertine deposition rate at Huanglong scenic area. The sensitivity degree from high to low of the travertine dep- osition to the phosphate concentration was found in the order of Jinshapudi, Matihai, Yingbichi, Wucaichi and Zhengyauchi.