Spatial distribution of groundwater quality in the coastal plain and its relationship with land use and seawater intrusion

Spatial distribution of groundwater quality in the coastal plain and its relationship with land use and seawater intrusion

Studying the spatial distribution characteristics of groundwater quality in the coastal plain and its relationship with land use and seawater intrusion is of great significance for maintaining the stability of the coastal groundwater environment, rationally using land and preventing seawater intrusi...

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Bibliographic Details
Published in:Environmental earth sciences Vol. 80; no. 14
Main Authors: Wang, Zhiwei, Li, Fulin, Xia, Yongfa, Chen, Huawei, Wang, Kairan, Fu, Shidong, Wang, Genxu
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-07-2021
Springer Nature B.V
Subjects:
Agricultural land
Agriculture
Biogeosciences
Calcium
Chemical analysis
Coastal aquifers
Coastal plains
Distribution
Earth and Environmental Science
Earth Sciences
Environmental Science and Engineering
Geochemistry
Geology
Groundwater
Groundwater quality
Hydrology/Water Resources
Interpolation
Kriging interpolation
Land use
Original Article
Saline water intrusion
Salt water intrusion
Seawater
Seawater intrusion
Sewage
Sodium
Spatial distribution
Spatial variability
Spatial variations
Stability
Statistical methods
Surveys
Terrestrial Pollution
Water analysis
Water quality
Seawater intrusion
Groundwater quality
Spatial distribution
Land use
Coastal plain
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Summary:Studying the spatial distribution characteristics of groundwater quality in the coastal plain and its relationship with land use and seawater intrusion is of great significance for maintaining the stability of the coastal groundwater environment, rationally using land and preventing seawater intrusion in international community. Taking Longkou, Shandong Province as an example, through field surveys and sampling monitoring, and using methods, such as semi-variogram and Kriging interpolation, the spatial distribution characteristics of groundwater quality in the study area and the coupling relationship with land use and seawater intrusion were analyzed. The results show that the main chemical types of groundwater in Longkou are the HCO 3 ·Cl–Na·Ca·Mg and HCO 3 ·Cl–Na·Ca types. Spatial distribution characteristics of groundwater quality are closely related to land use and seawater intrusion, and the mass concentration of most ions gradually decreases from the coast to the inland. The spatial variability of Cl − and Na + is greatly affected by seawater intrusion. The spatial distribution of NO 3 − is closely related to the distribution of agricultural land and residential land. We should constantly monitor the scope of seawater intrusion and the total amount of sewage discharged from agriculture and domestic life to effectively prevent the further deterioration of coastal groundwater quality.
ISSN:1866-6280
1866-6299
DOI:10.1007/s12665-021-09757-6