中国桂林岩溶潮汐泉的水位时空动态和水源分析

IF 2.7 4区环境科学与生态学 Q2 Environmental Science

Hydrology Research Pub Date : 2024-02-14 DOI:10.2166/nh.2024.178

Jie Ma, Shilong Zhu, Xiaomei Wei, Yongli Guo, Jianhua Cao, Fen Huang

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引用次数: 0

摘要

由于岩溶潮汐泉的流速波动较大，其水文动态和水源难以捕捉和量化。本研究以桂林市茅村地下河流域的老龙水岩溶潮汐泉为例，对其电导率、水位以及水化学分析进行了为期两年的连续监测。结果表明(1）发现了 LLS 水位在不同季节的变化规律，水位每天有规律地波动，雨季大雨后水位升降时间为 43.6 min，旱季则持续约 74-80 h；（2）从电导率的频率分布中提取了四个峰值，代表了泉水在不同降雨条件下的响应。(3) 从时间上看，P1、P2、P3 和 P4 的年平均出现频率分别为 53.82%、39.29%、6.18% 和 0.72%。这些结果为分析岩溶地区地下水的来源和动态变化提供了一种新的方法。

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Temporal dynamics of water level and water sources analyses of karst tidal springs in Guilin, China

The hydrological dynamics and sources of karst tidal springs are difficult to capture and quantify due to fluctuations in their flow velocity. In this study, the Laolongshui (LLS) karst tidal spring in the Maocun underground river basin of Guilin City was taken as an example, with a 2-year continuous monitoring of the electrical conductivity, and water level,as well as water chemical analysis. The results showed the following: (1) discovered the variation pattern of LLS water level in different seasons, the water level fluctuates regularly on a daily scale, with a rise and fall time of 43.6 min after heavy rainfall in the rainy season, while in the dry season, it lasts for about 74–80 h. (2) Four peaks were extracted from the frequency distribution of electrical conductivity, representing the response of springwater under different rainfall conditions. (3) The annual average frequencies of the occurrence of P1, P2, P3, and P4 in terms of time are 53.82, 39.29, 6.18, and 0.72%, respectively. The results provide a new method for analyzing groundwater's source and dynamic changes in karst areas.

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来源期刊

Hydrology Research Environmental Science-Water Science and Technology

CiteScore

5.30

自引率

7.40%

发文量

审稿时长

17 weeks

期刊介绍： Hydrology Research provides international coverage on all aspects of hydrology in its widest sense, and welcomes the submission of papers from across the subject. While emphasis is placed on studies of the hydrological cycle, the Journal also covers the physics and chemistry of water. Hydrology Research is intended to be a link between basic hydrological research and the practical application of scientific results within the broad field of water management.