Isotope and hydrochemical study of seawater intrusion in Laizhou Bay, Shandong Province

2001 ◽  
Vol 44 (S1) ◽  
pp. 86-91 ◽  
Author(s):  
Shouquan Zhang ◽  
Fuchu Dai
Keyword(s):  
Seawater Intrusion ◽  
Shandong Province ◽  
Laizhou Bay ◽  
Hydrochemical Study

scholarly journals Elucidating the Pollution Sources and Groundwater Evolution in Typical Seawater Intrusion Areas Using Hydrochemical and Environmental Stable Isotope Technique: A Case Study for Shandong Province, China

Lithosphere ◽  
2021 ◽  
Vol 2021 (Special 3) ◽  
Author(s):  
Guangquan Chen ◽  
Guiyao Xiong ◽  
Jin Lin ◽  
Xingyong Xu ◽  
Hongjun Yu ◽  
...  
Keyword(s):  
River Basin ◽  
Seawater Intrusion ◽  
Anthropogenic Activities ◽  
Shandong Province ◽  
Pollution Sources ◽  
Laizhou Bay ◽  
The South ◽  
Domestic Activity ◽  
Isotope Technique ◽  
Groundwater Evolution

Abstract Seawater intrusion has a serious impact on industry, agriculture, and people’s daily life. Thus, the present study was designed to elucidate the pollution sources and groundwater evolution in typical intrusion areas of Shandong Province by hydrochemistry and environmental isotope techniques. The water samples were collected to analyze the groundwater evolution under different intrusion, and groundwater evolution in the south of Laizhou Bay from 2005 to 2019. The findings indicated that the groundwater level dropping funnel caused by overexploitation was the direct causation of seawater intrusion in the three typical intruded areas. The groundwater evolution paths demonstrated that the groundwater in the south of Laizhou Bay had the fastest evolution rate and the highest degree of evolution, followed by the Dagu River Basin. The groundwater evolution extent and fitting of mixing lines indicated that the groundwater in the south of Laizhou Bay, Longkou, and Dagu River Basin was dominated by palaeosaltwater intrusion, modern seawater intrusion, and sea-saltwater mixed intrusion, respectively. Palaeosaltwater mixing produces a more severe salinization effect compared to seawater mixing. Meanwhile, the isotopes are gradually enriched with the deepening of intrusion, while the decrease of isotopes is delayed compared with the saltwater retreat. This is caused by that the stable isotopes enriched in the aquiclude due to the chemical permeation effect will be released into the aquifer after the salinity attenuates in the aquifer. The palaeosaltwater intrusion caused by anthropogenic activities has promoted serious fluorine pollution in the south of Laizhou Bay, while the groundwater nitrate pollution in Longkou was the most serious, followed by the Dagu River Basin due to high-density agricultural and domestic activity.

scholarly journals Study on seawater intrusion in Laizhou bay coastal zone based on groundwater model

2019 ◽  
Vol 14 (2) ◽  
pp. 222-226
Author(s):  
Min Wang ◽  
Mei Han ◽  
Hongkuan Hui ◽  
Yunlong Li
Keyword(s):  
Coastal Zone ◽  
Seawater Intrusion ◽  
Laizhou Bay ◽  
Groundwater Model

Geoelectrical and hydrochemical study for the assessment of seawater intrusion evolution in coastal aquifers of Oualidia, Morocco

2017 ◽  
Vol 146 ◽  
pp. 178-187 ◽  
Author(s):  
Ahmed Fadili ◽  
Saliha Najib ◽  
Khalid Mehdi ◽  
Joëlle Riss ◽  
Philippe Malaurent ◽  
...  
Keyword(s):  
Seawater Intrusion ◽  
Coastal Aquifers ◽  
Hydrochemical Study

Study on Relationship between Groundwater Conductivity and Chemical Characteristics in Seawater Intrusion Area around Laizhou Bay

2013 ◽  
Vol 864-867 ◽  
pp. 903-907
Author(s):  
Qiao Su ◽  
Chang Sheng Peng ◽  
Hong Jun Yu ◽  
Xiong Yong Xu ◽  
Jing Yao
Keyword(s):  
Seawater Intrusion ◽  
Coastal Area ◽  
Chloride Ion ◽  
High Accuracy ◽  
Ion Concentration ◽  
Chemical Characteristics ◽  
Laizhou Bay ◽  
Titration Method ◽  
Fast Speed ◽  
Mineralization Degree

Based on the monitoring data in the coastal area of Laizhou bay, the paper presents the correlation between groundwater conductivity and chemical characteristics.The results showed that,compared with titration method,application of Diagometer has the advantages of high accuracy,fast speed and simple operation.When the seawater intrusion has not yet occurred or relatively weak,the effect of the application of diagometer is not very obvious.Only when seawater intrusion occurs serious,application of Diagometer can reflect the changes of mineralization degree and chloride ion concentration of groundwater accurately.

scholarly journals Evaluation of Water Resources Vulnerability in the Coastal Areas of the Yellow Sea and Bohai Sea under Seawater Intrusion——A case study of Longkou City, Shandong Province

2021 ◽  
Vol 299 ◽  
pp. 01012
Author(s):  
Lei Qiu ◽  
Ying Cao ◽  
Jingyi Huang
Keyword(s):  
Water Resources ◽  
Water Resource ◽  
Seawater Intrusion ◽  
Yellow Sea ◽  
Bohai Sea ◽  
Coastal Areas ◽  
Shandong Province ◽  
The Yellow Sea ◽  
Water Resources System ◽  
Water Resources Vulnerability

In view of the increased vulnerability of water resources system caused by seawater intrusion in the coastal areas of the Yellow Sea and Bohai Sea, this paper based on the VSD(Vulnerability Scoping Diagram) model to construct the water resource vulnerability evaluation index system of “exposure-sensitivity-adaptive capacity” under seawater intrusion. Then use entropy-TOPSIS method to evaluate water resource vulnerability and divide the levels. In addition, take Longkou City of Shandong Province as an example to conduct empirical research. The results show that the water resource vulnerability of Longkou City is at a strong vulnerability level. The water resources system is under obvious pressure. Population density, per capita GDP, temperature and precipitation change are the main factors of the system pressure. Seawater intrusion has a high degree of impact on water resources vulnerability and water resource system is more sensitive to groundwater level, chloride concentration and other stimuli. The improvement of water use efficiency and scientific and technological investment contribute to the significant enhancement of the adaptability of the water resources system of Longkou City.

Seawater intrusion types and regional divisions in the southern coast of Laizhou Bay

2002 ◽  
Vol 20 (3) ◽  
pp. 277-284 ◽  
Author(s):  
Meng Guang-lan ◽  
Han You-song ◽  
Wang Shao-qing ◽  
Wang Zhen-yan
Keyword(s):  
Seawater Intrusion ◽  
Laizhou Bay ◽  
Southern Coast

scholarly journals Modeling Seawater Intrusion to Coastal Aquifers in South Coast of Laizhou Bay, China

2018 ◽  
Vol 54 ◽  
pp. 00004
Author(s):  
Yawen Chang ◽  
Bill X. Hu ◽  
Xue Li
Keyword(s):  
Seawater Intrusion ◽  
Coastal Aquifers ◽  
Saline Water ◽  
Groundwater Resources ◽  
Water Area ◽  
Laizhou Bay ◽  
Precipitation Condition ◽  
Fresh Groundwater ◽  
Depression Cone ◽  
Error Method

In this study, a two-dimensional SEAWAT 2000 model is developed to simulate the seawater intrusion to coastal aquifers and brine water/fresh water interaction in the south of Laizhou Bay, Shandong Province, China and forecast the seawater intrusion and brine water/freshwater interface development in the coming years. The model profile is perpendicular to the coastal line, about 40 km long and 110 m in depth, and consists of two interfaces, freshwater-saline water interface and brine water-saline water-seawater interface. The parameters of aquifers in the SEAWAT-2000 model are calibrated by trial-error method repeatedly to fit the head and salinity measurements. Based on the historical groundwater and brine water exploration and natural precipitation condition, the prediction results indicate that equivalent freshwater head in shallow freshwater-saline water area will decrease year by year and decline 2.0 m in the forecasting period, caused by groundwater over-pumping for irrigating farmlands. The groundwater head in the brine-saline water area will also decrease about 1.8 m in forecasting period. A larger depression cone appears in the brine area, with smaller funnels in other areas. The salinity in the brine area finally drops below 105g/l. In the meanwhile, the salinity increases in other areas, damage fresh groundwater resources.

Discussion on the Fluorosis in Seawater-Intrusion Areas Along Coastal Zones in Laizhou Bay and Other Parts of China

2019 ◽  
Vol 13 (2) ◽  
pp. 435-442 ◽  
Author(s):  
Q. Chen ◽  
J. Wei ◽  
H. Wang ◽  
L. Shi ◽  
Z. Gao ◽  
...  
Keyword(s):  
Seawater Intrusion ◽  
Laizhou Bay ◽  
Coastal Zones

The development and control of the seawater intrusion in the eastern coastal of Laizhou Bay, China

2007 ◽  
Vol 54 (8) ◽  
pp. 1763-1770 ◽  
Author(s):  
Jichun Wu ◽  
Fanhai Meng ◽  
Xiaowen Wang ◽  
Dong Wang
Keyword(s):  
Seawater Intrusion ◽  
Laizhou Bay ◽  
And Control
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