Journal of Groundwater Science and Engineering最新文献

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Elucidating Genetic Diversity and Phylogenetic Relationships of Some Brassicaceae Species. 部分芸苔科植物的遗传多样性及其系统发育关系的研究。
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2025-12-30 DOI: 10.64362/zjse.157
Honar Mahdi, Salih Wali, Sami Youssef
{"title":"Elucidating Genetic Diversity and Phylogenetic Relationships of Some Brassicaceae Species.","authors":"Honar Mahdi, Salih Wali, Sami Youssef","doi":"10.64362/zjse.157","DOIUrl":"https://doi.org/10.64362/zjse.157","url":null,"abstract":"The Brassicaceae family is among largest and economically significant groups within the order Brassicales; nonetheless, its genetic diversity and evolutionary links are inadequately researched in Iraq. This paper investigates the evolutionary relationships of eight species of family Brassicaceae that naturally occur in Duhok Province, Kurdistan Region of Iraq, using a partial region of the Internal Transcribed Spacer (ITS) gene of the nuclear ribosomal DNA (nrDNA). For the DNA sequence data, distance matrix methods, the unweighted pair group method with arithmetic mean (UPGMA), and Maximum Likelihood (ML) were performed to elucidate levels of differences and to eventually construct up the phylogenetic tree. The results show the closest species to have been Sinapis arvensis L. and Sinapis alba L., with zero variation, while maximum divergence (0.19) was recorded for Hirschfeldia incana, and Cardaria draba, and Erysimum repandum. The phylogenetic tree thereby formed two principal clades with respect to their morphology. The first clade included Sinapis arvensis and Sinapis alba as a strongly supported group (94%) that subsequently clustered (88-93%) with Hirschfeldia incana. and Eruca sativa. The second clade contain Cardaria draba, Neslia paniculata subsp. apiculata, Alyssum strigosum, and Erysimum repandum, also receiving strong support (94-95%). An alternative phylogenetic tree that included several sequences obtained from the National Center for Biotechnology Information (NCBI) database suggests a close affinity of these species with accessions isolated from several other countries globally. Thus, ITS region proves to be a reliable marker for investigating diversity and genetic relationships of the Brassicaceae species in the area of study.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"1 4","pages":"118-126"},"PeriodicalIF":0.0,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://zjse.uod.ac/index.php/zjse/article/download/157/189","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147893196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Removal of 1,2,3-Trichloropropane from groundwater using Graphene Oxide-Modified Nano Zero-Valent Iron Activated Persulfate 氧化石墨烯修饰纳米零价铁活化过硫酸盐去除地下水中的1,2,3-三氯丙烷
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2025-10-20 DOI: 10.26599/jgse.2025.9280058
Hui Li, Lu Liu, Jiahui Li, Baizhong Yan, Xiangke Kong, Wei Zhang
{"title":"Removal of 1,2,3-Trichloropropane from groundwater using Graphene Oxide-Modified Nano Zero-Valent Iron Activated Persulfate","authors":"Hui Li, Lu Liu, Jiahui Li, Baizhong Yan, Xiangke Kong, Wei Zhang","doi":"10.26599/jgse.2025.9280058","DOIUrl":"https://doi.org/10.26599/jgse.2025.9280058","url":null,"abstract":"Graphene Oxide (GO), nanoscale Zero-Valent Iron (nZVI) and GO-modified nZVI (GO-nZVI) composite materials were prepared by the Hummer and polyphenol reduction method, respectively, and Scanning Electron Microscope (SEM) and X-ray Diffraction (XRD) were used to characterize the morphology and phase composition of these materials. A series of batch experiments were then conducted to investigate the performance and influencing factors of GO-nZVI activating peroxydisulfate (SPS) for the degradation of 1,2,3-trichloropropane (TCP). Finally, an in-situ oxidation reaction zone was created by GO-nZVI-activated SPS in a one-dimensional simulated system to study the remediation of TCP contamination under different aquifer conditions. The results showed that the GO-nZVI composite exhibited a porous, fluffy structure, with spherical nZVI particles loaded onto the surface and folds of the GO sheets. Compared with unmodified nZVI particles, the GO-nZVI composite significantly enhanced the removal efficiency of TCP by activated SPS, achieving a removal rate of 67.2% within an hour - 78.2% higher than that of the unmodified system. The SPS dosage and the C/Fe ratio in GO-nZVI were found to significantly affect the degradation efficiency of TCP. The removal rate of TCP increased with higher SPS concentration, and a 10% carbon addition, yielded the best activation effect. The one-dimensional simulation results indicated that the removal rate of TCP ranged from 30.1% to 73.3% under different conditions. A larger medium particle size and higher concentrations of reactants (SPS and GO-nZVI) improved pollutant degradation efficiency, increasing TCP removal by 62.1%, 23.8%, and 3.7%, respectively. In contrast, a higher groundwater flow velocity was not conducive to the removal of pollutants, with the TCP removal rate decreasing by approximately 41.9%.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"13 4","pages":"341-351"},"PeriodicalIF":0.0,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciopen.com/article_pdf/1980110560764219394.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Cr(III) complexation with organic acid on its adsorption in silts and fine sands 有机酸与Cr(III)络合对其在淤泥和细砂中吸附的影响
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2024-12-01 DOI: 10.26599/jgse.2024.9280026
Zi-xuan Zhang, Lin Wu, Xiangke Kong, Huijun Li, Le Song, Ping Wang, Yanyan Wang
{"title":"Impact of Cr(III) complexation with organic acid on its adsorption in silts and fine sands","authors":"Zi-xuan Zhang, Lin Wu, Xiangke Kong, Huijun Li, Le Song, Ping Wang, Yanyan Wang","doi":"10.26599/jgse.2024.9280026","DOIUrl":"https://doi.org/10.26599/jgse.2024.9280026","url":null,"abstract":"Trivalent chromium (Cr(III)) can form stable soluble complexes with organic components, altering its adsorption properties in the water-soil environment. This increases the risk of Cr(III) migrating to deeper soils and transforming into toxic Cr(VI) due to the presence of manganese oxides in sediments. In this study, Citric Acid (CA) was selected as a representative organic ligand to prepare and characterize Cr(III)-CA complexes. The characteristics, mechanisms and environmental factors influencing the adsorption of Cr(III)-CA on porous media (silts and fine sands) were investigated in the study. The results show that Cr(III) coordinates with CA at a 1:1 molar ratio, forming stable and soluble Cr(III)-CA complexes. Compared to Cr(III) ions, the equilibrium adsorption capacity of Cr(III)-CA is an order of magnitude lower in silts and fine sands. The adsorption of Cr(III)-CA in silts and fine sands is dominated by chemical adsorption of monolayers, following the pseudo-second-order kinetic equation and the Langmuir isotherm adsorption model. Varying contents of clay minerals and iron-aluminum oxides prove to be the main causes of differences in adsorption capacity of Cr(III)-CA in silts and fine sands. Changes in solution pH affect the adsorption rate and capacity of Cr(III)-CA by altering its ionic form. The adsorption process is irreversible and only minimally influenced by ionic strength, suggesting that inner-sphere complexation serves as the dominant Cr(III)-CA adsorption mechanism.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"12 4","pages":"347-359"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciopen.com/local/article_pdf/10.26599/JGSE.2024.9280026.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147888709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Development and application of multi-field coupled high-pressure triaxial apparatus for soil 土壤多场耦合高压三轴仪的研制与应用
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2023-09-01 DOI: 10.26599/jgse.2023.9280025
Xiu-yan Wang, Lin Sun, Shuai-wei Wang, Ming-yu Wang, Jin-qiu Li, Wei-chao Sun, Jing-jing Wang, Xi Zhu, He Di
{"title":"Development and application of multi-field coupled high-pressure triaxial apparatus for soil","authors":"Xiu-yan Wang, Lin Sun, Shuai-wei Wang, Ming-yu Wang, Jin-qiu Li, Wei-chao Sun, Jing-jing Wang, Xi Zhu, He Di","doi":"10.26599/jgse.2023.9280025","DOIUrl":"https://doi.org/10.26599/jgse.2023.9280025","url":null,"abstract":"The increasing severity of ground subsidence, ground fissure and other disasters caused by the excessive exploitation of deep underground resources has highlighted the pressing need for effective management. A significant contributing factor to the challenges faced is the inadequacy of existing soil mechanics experimental instruments in providing effective indicators, creating a bottleneck in comprehensively understanding the mechanisms of land subsidence. It is urgent to develop a multi-field and multi-functional soil mechanics experimental system to address this issue. Based soil mechanics theories, the existing manufacturing capabilities of triaxial apparatus and the practical demands of the test system, a set of multi-field coupled high-pressure triaxial system is developed tailored for testing deep soils (at depths of approximately 3 000 m) and soft rock. This system incorporates specialized design elements such as high-pressure chamber and horizontal deformation testing devices. In addition to the conventional triaxial tester functions, its distinctive feature encompass a horizontal deformation tracking measuring device, a water release testing device and temperature control device for the sample. This ensemble facilitates testing of horizontal and vertical deformation water release and other parameters of samples under a specified stress conditions, at constant or varying temperature ranging from −40°C–90°C. The accuracy of the tested parameters meets the requirements of relevant current specifications. The test system not only provides scientifically robust data for revealing the deformation and failure mechanism of soil subjected to extreme temperature, but also offers critical data support for major engineering projects, deep exploration and mitigation efforts related to soil deformation-induced disaster.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135434107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes in groundwater resources and their influencing factors in Songnen Plain, China 松嫩平原地下水资源变化及其影响因素
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2023-09-01 DOI: 10.26599/jgse.2023.9280018
Qiang Liu, Xiao-dong Guo, Chang-qi Wang, Nan Lin, Hui-rong Zhang, Lin Chen, Yan Zhang
{"title":"Changes in groundwater resources and their influencing factors in Songnen Plain, China","authors":"Qiang Liu, Xiao-dong Guo, Chang-qi Wang, Nan Lin, Hui-rong Zhang, Lin Chen, Yan Zhang","doi":"10.26599/jgse.2023.9280018","DOIUrl":"https://doi.org/10.26599/jgse.2023.9280018","url":null,"abstract":"The Songnen Plain is a crucial agricultural area in China, and in the past 20 years, a large number of dry fields have been developed into paddy fields in order to improve land output efficiency. As a result, the effective irrigation area of agriculture has increased annually, and the conversion mode and quantity between surface water and groundwater have changed considerably. It is essential to identify the changes in groundwater resources and their influencing factors for the sustainable development of economy and society. This study evaluates groundwater resources in the Songnen Plain using the water balance method based on meteorological, hydrological and groundwater monitoring data from 2000 to 2020. The results show that the groundwater resources in the region amount to 15.945 billion m<sup>3</sup> with precipitation infiltration being the most important component, accounting for 73.09%, which is followed surface water irrigation infiltration and river and ditch infiltration, constituting 14.55% and 10.32%, respectively. Different factors influence groundwater resources in different periods. Compared to 1985, the increase of surface water irrigation infiltration is the primary factor responsible for the increase of groundwater resources, while other recharge sources have decreased during the same period. Compared to 2005, all groundwater resources have increased, with the increase of surface water irrigation infiltration and river channel infiltration being the primary factors.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135434114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effectiveness of groundwater extraction in Beijing since the ingauration of the first phase of the South-to-North Water Diversion Project, China 南水北调一期工程开通以来北京地下水开采效果分析
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2023-09-01 DOI: 10.26599/jgse.2023.9280024
Yuan-yuan Gao, Qing-yu Sun, Ai-xin Wen, Yan-pei Cheng
{"title":"Effectiveness of groundwater extraction in Beijing since the ingauration of the first phase of the South-to-North Water Diversion Project, China","authors":"Yuan-yuan Gao, Qing-yu Sun, Ai-xin Wen, Yan-pei Cheng","doi":"10.26599/jgse.2023.9280024","DOIUrl":"https://doi.org/10.26599/jgse.2023.9280024","url":null,"abstract":"This study assess the effectiveness of groundwater pressure extraction in Beijing since the opening of the first phase of the South-to-North Water Diversion Project, using survey and evaluation methods. Firstly, an analysis of water consumption structure and the usage of diverted river water in Beijing in recent years was conducted. Secondly, the volume of groundwater pressure extraction in Beijing after the project's inauguration was examined, revealing a decrease from 1.96 billion m<sup>3</sup> in 2014 to 1.35 billion m<sup>3</sup> in 2020. The proportion of water supply reduced from 52.3% in 2014 to 33.3% in 2020, leading to an optimized water supply structure. By the end of 2020, groundwater pressure extraction in Beijing is estimated at 446 million m<sup>3</sup>, with a substantial reduction in over-exploitation of groundwater. Groundwater resources have been effectively replenished, and the strategic reserve capacity has been enhanced. Furthermore, this study evaluates the change in groundwater levels as an indicator of the effectiveness of pressure extraction. The declining trend of groundwater levels in Beijing has been effectively mitigated, and there has been a consistent rebound in groundwater levels over the past five years.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135434109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determination of groundwater potential distribution in Kulfo-Hare watershed through integration of GIS, remote sensing, and AHP in Southern Ethiopia 基于GIS、遥感和AHP的埃塞俄比亚南部Kulfo-Hare流域地下水潜力分布确定
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2023-09-01 DOI: 10.26599/jgse.2023.9280021
Edmealem Temesgen, Demelash Wendmagegnehu Goshime, Destaw Akili
{"title":"Determination of groundwater potential distribution in Kulfo-Hare watershed through integration of GIS, remote sensing, and AHP in Southern Ethiopia","authors":"Edmealem Temesgen, Demelash Wendmagegnehu Goshime, Destaw Akili","doi":"10.26599/jgse.2023.9280021","DOIUrl":"https://doi.org/10.26599/jgse.2023.9280021","url":null,"abstract":"Identification of groundwater potential areas (GPA) is important in regions facing surface water scarcity, as it assists in effective planning and utilization of groundwater for various purposes. This study employs the methods of remote sensing (RS), geographic information system (GIS) model, and analytical hierarchy process (AHP), multi-criteria decision analysis (MCDA) to locate and map the prospective groundwater areas in the Kulfo-Hare watershed. Seven significant groundwater influencing factors were selected for the determination of groundwater potential in the area: Geology, land use/land cover (LULC), soil, rainfall, slope, drainage density, and lineament density. By applying a five-class classification scheme (very low, low, moderate, high, and very high), the GIS models were used to define the distribution of groundwater potential areas in terms of area coverage (km<sup>2</sup>), percentage and mapping. The results show that the groundwater potential (GWP) distribution in the research region is as follows: 9.7% (6 035.9 ha) classified as very high GWP, 29.6% (18 606 ha) classified as high, 24.5% (15 245 ha) classified as moderate, 18.1% (11 431 ha) as low and 18.1% (11 492 ha) very low GWP, on the basis of the weighted overlay evaluation. Although a few regions are identifies as extremely low GWP, most of the study area is characterized by very high to moderate GWP. These findings provide valuable insight for sustainable groundwater planning by the government bodies, decision-makers, and private sectors.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135434110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effective groundwater level recovery from mining reduction: Case study of Baoding and Shijiazhuang Plain area 减少开采有效恢复地下水位——以保定和石家庄平原地区为例
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2023-09-01 DOI: 10.26599/jgse.2023.9280023
Tian Nan, Chen Yue, Wen-geng Cao, En-lin Mu, Yang Ou, Zhen-sheng Lin, Wei Kang
{"title":"Effective groundwater level recovery from mining reduction: Case study of Baoding and Shijiazhuang Plain area","authors":"Tian Nan, Chen Yue, Wen-geng Cao, En-lin Mu, Yang Ou, Zhen-sheng Lin, Wei Kang","doi":"10.26599/jgse.2023.9280023","DOIUrl":"https://doi.org/10.26599/jgse.2023.9280023","url":null,"abstract":"The effective recovery of water level is a crucial measure of the success of comprehensive groundwater over-exploitation management actions in North China. However, traditional evaluation method do not directly capture the relationship between mining and other equilibrium elements. This study presents an innovative evaluation method to assess the water level recovery resulting from mining reduction based on the relationship between variation in exploitation and recharge. Firstly, the recharge variability of source and sink terms for both the base year and evaluation year is calculated and the coefficient of recharge variation <i>β</i> is introduced, which is then used to calculate the effective mining reduction and solve the water level recovery value caused by the effective mining reduction, and finally the water level recovery contribution by mining reduction is calculated by combining with the actual volume of mining reduction in the evaluation area. This research focuses on Baoding and Shijiazhuang Plain area, which share similar hydrogeological conditions but vary in groundwater exploitation and utilization. As the effect of groundwater level recovery with mining reduction was evaluated in these two areas as case study. In 2018, the results showed an effective water level recovery of 0.17 m and 0.13 m in the shallow groundwater of Shijiazhuang and Baoding Plain areas, respectively. The contributions of recovery from mining reduction were 76% and 57.98% for these two areas, respectively. It was notable that the water level recovery was most prominent in the foothill plain regions. From the evaluation results, it is evident that water level recovery depends not only on the intensity of groundwater mining reduction, but also on its effectiveness. The value of water level recovery alone cannot accurately indicate the intensity of mining reduction, as recharge variation significantly influences water level changes. Therefore, in practice, it is crucial to comprehensively assess the impact of mining reduction on water level recovery by combining the coefficient of recharge variation with the contribution of water level recovery from mining reduction. This integrated approach provide a more reasonable and scientifically supported basis, offering essential data support for groundwater management and conservation. To improve the accuracy and reliability of evaluation results, future work will focus on the standardizing and normalizing raw data processing.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135434115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessing the impact of artificial recharge on groundwater in an over-exploited aquifer: A case study in the Cheria Basin, North-East of Algeria 评估过度开采的含水层中人工补给对地下水的影响:阿尔及利亚东北部Cheria盆地的案例研究
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2023-09-01 DOI: 10.26599/jgse.2023.9280022
Mouna Djellali, Omar Guefaïfia, Chemsedinne Fehdi, Adel Djellali, Amor Hamad
{"title":"Assessing the impact of artificial recharge on groundwater in an over-exploited aquifer: A case study in the Cheria Basin, North-East of Algeria","authors":"Mouna Djellali, Omar Guefaïfia, Chemsedinne Fehdi, Adel Djellali, Amor Hamad","doi":"10.26599/jgse.2023.9280022","DOIUrl":"https://doi.org/10.26599/jgse.2023.9280022","url":null,"abstract":"The Cheria region in Northeastern Algeria has been facing aquifer overexploitation by the agricultural sector and prolonged droughts, resulting in a considerable decline in groundwater levels. This study investigates the feasibility of implementing artificial recharge techniques to replenish the Eocene aquifer which serves as the primary water source in the Cheria region. A 3D transient numerical model, based on the finite difference method, was used to simulate groundwater flow from 2021 to 2031 using Visual MODFLOW Flex. During the modelling process, three scenarios were considered: (1) including pumping without a recharge, (2) recharge of the entire area through efficient infiltration without pumping, and (3) artificial recharge using river water infiltration basins at two sites, Draa Douamis sinkholes and Eocene limestone outcrops. The simulation results showed that aquifer exploitation without recharge caused significant drawdowns, which were 3 m to 7 m in the north-eastern part and 8 m to 12 m in the central and southern parts. In contrast, the second scenario, involving recharge without pumping, showed a rise in groundwater levels of 2 m to 2.7 m in the north-eastern part and 3 m to 3.62 m in the central and southern parts. The third scenario, employing artificial recharge, indicated a positive response to artificial recharge, with increased piezometric levels at the proposed sites, signifying a beneficial impact on the aquifer. These findings underline the potential of artificial recharge as a promising approach to address the groundwater depletion and environmental issues in the Cheria Basin.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135434106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geothermal anomalies in the Xianshuihe area: Implications for tunnel construction along the Sichuan-Tibet Railway, China 鲜水河地区地热异常:对川藏铁路隧道建设的启示
4区 地球科学
Journal of Groundwater Science and Engineering Pub Date : 2023-09-01 DOI: 10.26599/jgse.2023.9280020
Feng Liu, Wei Zhang, Gui-ling Wang, Shuai-chao Wei, Chen Yue, Guang-zheng Jiang, Yu-zhong Liao
{"title":"Geothermal anomalies in the Xianshuihe area: Implications for tunnel construction along the Sichuan-Tibet Railway, China","authors":"Feng Liu, Wei Zhang, Gui-ling Wang, Shuai-chao Wei, Chen Yue, Guang-zheng Jiang, Yu-zhong Liao","doi":"10.26599/jgse.2023.9280020","DOIUrl":"https://doi.org/10.26599/jgse.2023.9280020","url":null,"abstract":"This study presents a comprehensively analysis of geothermal characteristics in the Xianshuihe geothermal area along the Sichuan-Tibet Railway, using temperature logging, temperature monitoring and thermal conductivity measurement, and regional geothermal geological survey data. The research focuses on the geothermal background, geothermal field, and their potential impact on the surrounding tunnels. The investigation reveals that the average heat flow value in the study area is approximately 73.0 mW/m<sup>2</sup>, significantly higher than the average terrestrial heat flow in mainland China (​​62.5 mW/m<sup>2</sup>). This high terrestrial heat flow signifies a distinct thermal background in the area. In addition, geothermal anomalies in the area are found to be closely associated with the distribution of hot springs along NW faults, indicating a strong control by the Xianshuihe fault zone. The study concludes that the region's favorable conditions for geothermal resources are attributed to the combination of high terrestrial heatflow background and water-conducting faults. However, these conditions also pose a potential threat of heat damage to the tunnels along the Sichuan-Tibet Railway. To evaluate the risk, the research takes into account the terrestrial heat flow, thermal conductivity of the tunnel surrounding rocks, characteristics of the regional constant temperature layer, as well as the distribution of hot springs and faults. The analysis specifically focuses on the thermal damage risk of Kangding 1<sup>#</sup> tunnel and 2<sup>#</sup> tunnel passing through the study area. Based on the findings, it is determined that Kangding 1<sup>#</sup> tunnel and 2<sup>#</sup> tunnel have relatively low risk of heat damage, as they have avoided most of the high temperature anomaly areas. However, several sections of the tunnels do traverse zones with low to medium temperatures, where surface rock temperatures can reach up to 45°C. Therefore, these regions should not be neglected during the construction and operation of the tunnel project, and mitigation measures may be necessary to address the potential heat-related challenges in the area.","PeriodicalId":43567,"journal":{"name":"Journal of Groundwater Science and Engineering","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135434112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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