云南省青龙洞泉水旱雨季水位动态变化及其与水体理化因子的关系  

Dynamic Changes of Water Level of Qinglongdong Spring Water in Yunnan Province during Dry and Rainy Seasons and Its Relationship with Physicochemical Factors of Water Body

作　　者：莫萧天 刘宏[1] 

机构地区：[1]云南大学,地球科学学院,云南 昆明

出　　处：《地理科学研究》2023年第6期718-726,共9页Geographical Science Research

摘　　要：研究岩溶洞泉水的水位变化规律及其与水体理化因子的关系对进一步认识岩溶水循环机制以及加强泉水水质保护都有着重要的意义。本文以云南省青龙洞泉水作为研究对象,先对青龙洞泉水自然状况、附近的岩层组成和地表河流分布情况进行分析;通过对各水文要素旱雨季动态变化图分析发现泉水水位的变化存在季节差异,即旱季和雨季变化的情况不同,旱季较为规律呈周期性变化,雨季则呈阶段性变化,且雨季泉水水位显著高于旱季。本研究通过计算旱季和雨季水文要素间的皮尔逊相关系数,发现水文要素间的相关关系随季节变化也会发生变化,同时雨季水文要素间的关联性显著高于旱季。方差分析得出泉水水文要素的值存在显著的季节差异。通过建立水位与水体理化因子间的多元回归模型并进行逐步回归得出,影响旱季和雨季泉水水位最大的因子均为水温,同时两个季节的水温与水位均呈负相关关系。Understanding the rules of water level changes in karst cave springs and their relationship with physicochemical factors is of great significance for further understanding the karst water cycle mechanism and strengthening spring water quality protection. This study takes Qinglongdong spring in Yunnan Province as the research object. Firstly, the natural conditions of Qinglongdong spring water, nearby rock formations, and surface river distribution are analyzed. Through the analysis of the dynamic changes in various hydrological elements during the dry and wet seasons, it is found that there are seasonal differences in the changes of spring water level. The changes during the dry and rainy seasons differ, with the dry season showing periodic and regular changes and the rainy season showing staged changes, with the water level during the rainy season significantly higher than that during the dry season. By calculating Pearson correlation coefficients between hydrological elements during the dry and wet seasons, it is found that the correlation between hydrological elements also changes with the seasons, and the correlation between hydrological elements during the rainy season is significantly higher than that during the dry season. Variance analysis shows that there are significant seasonal differences in the values of spring water hydrological elements. By establishing a multivariate regression model between water level and physicochemical factors and conducting stepwise regression, it is found that the factor that has the greatest impact on the water level of Qinglongdong spring during both the dry and rainy seasons is water temperature, and the water temperature and water level in both seasons are negatively correlated.

关 键 词：青龙洞泉水 旱雨季 水位 水体理化因子 地质条件 水文动态分析 

分 类 号：P33[天文地球—水文科学]