Results 21 to 30 of about 2,793 (182)

Review of research progress of karst groundwater in northern China

open access: yes地质科技通报, 2022
The Middle-Upper Proterozoic and Lower Paleozoic carbonate aquifers in northern China are continuously deposited with large thicknesses and wide distribution areas.
Yongping Liang, Haoyong Shen, Xubo Gao
doaj   +1 more source

Characteristics and genesis of karst water flow system around Huangling anticline

open access: yes地质科技通报, 2022
The study of the karst water flow system is helpful for the reasonable evaluation and utilization of groundwater resources.In this paper, the spatial characteristics, hydrological dynamic response, temperature field, and conductivity characteristics of ...
Xulei Guo   +7 more
doaj   +1 more source

Numerical simulation of karst groundwater in Dajing basin of Guizhou Province based on MODFLOW-CFP

open access: yesCarsologica Sinica, 2023
China is a country with the most widely distributed karst, and the karst is extensively developed in its southwesten part where 2,836 underground rivers are distributed with about 1,847.8×108 m3·a−1 of karst groundwater resources and a total discharge of
Zhiwen DANG   +6 more
doaj   +1 more source

Microplastic Contamination in Karst Groundwater Systems

open access: yesGroundwater, 2019
Abstract Groundwater in karst aquifers constitutes about 25% of drinking water sources globally. Karst aquifers are open systems, susceptible to contamination by surface‐borne pollutants. In this study, springs and wells from two karst aquifers in Illinois, USA, were found to contain microplastics and other anthropogenic contaminants.
Panno, Samuel V   +7 more
openaire   +4 more sources

A Geoelectric Approach for Karst Groundwater Analysis

open access: yesIOP Conference Series: Earth and Environmental Science, 2022
Abstract Artesian well is one of the major efforts to obtain water source for fulfilling water demands in Eroniti Conservation park, Ponjong, Yogyakarta by drilling deep into several soil layers. Vertical Electrical Sounding (VES) method is the most common approach to determine the existence of groundwater.
Amallia Ferhat   +7 more
openaire   +1 more source

Research on the response mechanism of groundwater level to rainfall in the western suburb of Jinan based on wavelet analysis

open access: yesCarsologica Sinica, 2023
With the rapid development of social economy, karst groundwater in Jinan City keeps facing various problems such as water resource shortage and water pollution, which seriously threatens the protection of springs and the utilization of groundwater ...
Zhenhua ZHAO   +5 more
doaj   +1 more source

Identification and genetic mechanism of recharge sources in groundwater-rich area of Changxiao karst water system in Jinan City

open access: yes地质科技通报
Objective and methods In this study, the hydrochemical method and self-organized neural network (SOM-KM) coupling method were employed to identify recharge sources and reveal the water-rich mechanism in the karst groundwater-rich area of the Changxiao ...
Yi LIU   +9 more
doaj   +1 more source

Karst collapse characteristics, disaster factors and risk analysis in Xiamao Village, Baiyun District, Guangzhou City

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2021
Xiamao Village has been suffered from serious karst collapse geological disasters. The geological environment conditions in the collapse area are extremely complex.
Xinjing ZHOU   +5 more
doaj   +1 more source

Estimating annual groundwater recharge coefficient for karst aquifers of the southern Apennines (Italy) [PDF]

open access: yesHydrology and Earth System Sciences, 2014
To assess the mean annual groundwater recharge of the karst aquifers in the southern Apennines (Italy), the estimation of the mean annual groundwater recharge coefficient (AGRC) was conducted by means of an integrated approach based on hydrogeological ...
V. Allocca, F. Manna, P. De Vita
doaj   +1 more source

Research progress of nitrate tracing in karst groundwater based on CiteSpace

open access: yesCarsologica Sinica
Nitrate (\begin{document}${\rm{NO}}_3^{-}$\end{document}) is one of the main pollutants in groundwater; therefore, once \begin{document}${\rm{NO}}_3^{-}$\end{document} concentrations exceed an acceptable level, it will have adverse effects on water ...
Pingheng YANG   +3 more
doaj   +1 more source

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