Hydrogeology Journal最新文献_第8页

Variation in hydraulic structure with respect to depth and age of a large igneous province in Ethiopia 埃塞俄比亚一个大火成岩省的水工结构与深度和年龄的关系

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-27 DOI: 10.1007/s10040-023-02749-9

Hassen Shube, Seifu Kebede

{"title":"Variation in hydraulic structure with respect to depth and age of a large igneous province in Ethiopia","authors":"Hassen Shube, Seifu Kebede","doi":"10.1007/s10040-023-02749-9","DOIUrl":"https://doi.org/10.1007/s10040-023-02749-9","url":null,"abstract":"Depth-wise variation in hydraulic structures of volcanic aquifers is rarely investigated when compared to basement and other rocks. A comprehensive dataset is presented here on the hydraulic properties of volcanic aquifers from a large igneous province in Africa. Age- and depth-wise variation in transmissivity (T), yield (Q), hydraulic conductivity (K) and specific capacity (Sc) of volcanic aquifers and water wells were systematically examined for stratigraphic units of various ages (Eocene to Quaternary Period) and well depth (18–882 m). The T ranges from 0.02 to 9,830 m2/day. There is a good correlation between the age of the emplacement of the rocks and their hydraulic properties. The oldest (Eocene) basalts show lower productivity (T, K and Q) when compared to the youngest (Quaternary) basalts. There is no statistically significant depth-wise variation of T, K and Q when one single formation is investigated. The insights gained from the analysis show that increasing the depth of drilling does not necessarily increase aquifer yields and can inform global-scale groundwater modelling efforts. The data challenge the widely held assumption that K and Q decrease with depth. Unlike basement rocks, volcanic rocks show no statistically significant change in hydraulic properties along its depth profile to the depth of 900 m.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"72 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Erratum: Interpretação da variabilidade da temperatura da água de nascente com base em monitoramento contínuo e modelagem numérica do transporte de calor e mistura de água: estudo de caso da nascente Czarny Potok, montanhas Pieniny, sul da Polônia 勘误：基于热量传输和水混合的连续监测和数值建模对泉水温度变化的解释：波兰南部皮耶尼山 Czarny Potok 泉的案例研究

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-27 DOI: 10.1007/s10040-023-02757-9

Tomasz Gruszczyński, Marzena Szostakiewicz-Hołownia, Daniel Zaszewski

引用次数: 0

An analysis of perspectives on groundwater governance arrangements relating to the potential development of unconventional oil and gas in South Africa 对与南非非常规石油和天然气潜在开发有关的地下水治理安排的观点分析

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-27 DOI: 10.1007/s10040-023-02742-2

Jack R. Hemingway, Alexandra Gormally-Sutton

{"title":"An analysis of perspectives on groundwater governance arrangements relating to the potential development of unconventional oil and gas in South Africa","authors":"Jack R. Hemingway, Alexandra Gormally-Sutton","doi":"10.1007/s10040-023-02742-2","DOIUrl":"https://doi.org/10.1007/s10040-023-02742-2","url":null,"abstract":"An analysis of expert perspectives on groundwater governance arrangements in South Africa is presented, particularly those arrangements that are pertinent to the complex and socially and ecologically significant implications of exploiting unconventional oil and gas (UOG). The paper presents a detailed assessment of literature on groundwater governance research, the findings of which are applied as a framework for a series of expert interviews, comprising hydrogeologists, lawyers, engineers, and governance specialists. This methodological approach was adopted as a means to enable an analysis of opinions on the current situation of groundwater governance in South Africa and how fit-for-purpose this is for managing the exploitation of UOG. The analysis was also informed by observation of participants at several relevant decision-making and stakeholder events. Whilst the findings indicated a generally positive evaluation of the initial steps taken to assess UOG impacts and engage relevant communities, recurrent criticisms also are featured across the interviews. Key implications arising from the research include: (1) the need for continued stakeholder engagement, and government follow-through on the outcomes of these processes, (2) the necessity for detailed groundwater-specific regulations to be drafted at the earliest opportunity, to ensure that the energy policy vacuum does not have a negative knock-on effect for effective groundwater management, and (3) the prevalence of significant governance gaps, particularly regarding regulatory and institutional capacity, and the need for continued development of a functional network of institutions to effectively manage UOG exploitation alongside groundwater resources.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"4 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Hydrogeological, hydrochemical and environmental consequences of the extraction of nonrenewable groundwater in Jordan 约旦开采不可再生地下水的水文地质、水化学和环境后果

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-22 DOI: 10.1007/s10040-023-02739-x

Elias Salameh, Hakam Al-Alami

{"title":"Hydrogeological, hydrochemical and environmental consequences of the extraction of nonrenewable groundwater in Jordan","authors":"Elias Salameh, Hakam Al-Alami","doi":"10.1007/s10040-023-02739-x","DOIUrl":"https://doi.org/10.1007/s10040-023-02739-x","url":null,"abstract":"In the Middle East and North Africa (MENA) area, groundwater overdraft has negative impacts and ramifications for not only the groundwater resources themselves but also for other environmental factors and for socio-economic continuity. Jordan is already facing negative consequences, without enough time for reversing the deteriorating situation. Exploitation of nonrenewable groundwater resources worldwide has been driven by increasing supply to household, industrial and agricultural sectors without adequately taking into account social, economic, ecological, geological, environmental and ethical considerations. This study analyses the development of the nonrenewable groundwater resources in Jordan and its consequences, to serve as a case study for what is happening in the MENA area. The consequences of such overexploitation in Jordan can be summarized as follows: declining groundwater levels; mobilization of salt-water bodies; ceasing or decreasing spring discharge; declining biodiversity with many ecological, environmental and socio-economic consequences leading to increasing unemployment and poverty; and land instability in the form of land subsidence and enhanced risk of earthquakes. The study concludes that the impacts and ramifications of overexploiting nonrenewable groundwater resources are generally irreversible, and the measures needed to stop the deteriorating state of groundwater resources are unavailable or unlikely to be implemented within the coming two decades. The question that remains is whether and when human actions can change from those of conquerors, invaders, and raiders to those of friends and lovers of the Earth.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"21 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Steady-state semianalytical solutions for assessing the two-dimensional hydraulic head distribution induced by an underground dam in a sloping aquifer with artificial aquifer recharge and pumping 斜坡含水层地下坝人工补水抽水二维水头分布的稳态半解析解

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-22 DOI: 10.1007/s10040-023-02734-2

Benoît Dewandel, Sandra Lanini, Nicolas Frissant

{"title":"Steady-state semianalytical solutions for assessing the two-dimensional hydraulic head distribution induced by an underground dam in a sloping aquifer with artificial aquifer recharge and pumping","authors":"Benoît Dewandel, Sandra Lanini, Nicolas Frissant","doi":"10.1007/s10040-023-02734-2","DOIUrl":"https://doi.org/10.1007/s10040-023-02734-2","url":null,"abstract":"Underground dams are a technology for artificially increasing existing groundwater resources. They modify the natural groundwater flow in aquifers and, typically, cause hydraulic heads to rise upstream and fall downstream of the dam. However, such modifications must be defined to forecast their environmental, economic and/or social impacts. A steady-state semianalytical solution is proposed for evaluating the two-dimensional distribution of hydraulic head caused by an underground dam fully penetrating a homogeneous and inclined aquifer. The dam is impermeable, of rectangular shape, and its length concerns a limited part of the aquifer width. The developed solution is based on the method of fundamental solutions. Analysis of the semianalytical solution included sensitivity tests and a satisfactory comparison with numerical modelling. Dimensionless graphs relating the dam geometry to maximum hydraulic-head variations upstream and downstream of the dam are given. The proposed solution was applied at two field sites, giving satisfactory results. A semianalytical solution is also developed for an artificial recharge area and/or a pumping well near the underground dam. Interestingly, in the case of highly permeable aquifers, the increase in hydraulic head created by the dam may be much higher than that created by managed aquifer recharge (MAR), despite high injected flux. These semianalytical solutions will be useful applications for assessing the long-term spatial distribution of hydraulic head induced by underground dams, or for testing the combination of dams with pumping wells or MAR technology. They are intended to guide the design of such structures, especially to quickly test various configurations.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"11 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Arizona Groundwater Explorer: interactive maps for evaluating the historical and current groundwater conditions in wells in Arizona, USA 亚利桑那地下水勘探:交互式地图评估历史和当前的地下水条件在美国亚利桑那州的井

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-22 DOI: 10.1007/s10040-023-02748-w

Fred D Tillman, Marilyn E. Flynn

{"title":"Arizona Groundwater Explorer: interactive maps for evaluating the historical and current groundwater conditions in wells in Arizona, USA","authors":"Fred D Tillman, Marilyn E. Flynn","doi":"10.1007/s10040-023-02748-w","DOIUrl":"https://doi.org/10.1007/s10040-023-02748-w","url":null,"abstract":"Groundwater is an important water source in Arizona, accounting for about 41% of water use in this mostly arid-to-semiarid state in the southwestern United States, and the availability of groundwater resources in the state is a concern. To provide accessible information from depth-to-groundwater data, a series of web-based interactive maps were developed, called the Arizona Groundwater Explorer (AGEx). Scripts were written to harmonize and synthesize groundwater datasets from the two largest publicly available sources, subset these data to address different groundwater availability questions, and display the results in online, interactive maps. The combined dataset contained 1,820,122 depth-to-groundwater measurements from 1891 through 2022 from 41,918 wells in Arizona. Data views are provided for 20 topics, including recent (2020 or later) depth to groundwater (4,569 wells), historical (pre-1950) depth to groundwater (4,287 wells), wells with long-term (≥50 years) records (1,183 wells), wells with recent groundwater level decline (277 wells), wells with recent groundwater level rise (120 wells), and linear trends in groundwater levels over ten 10-year periods (number of wells ranging from 341 in 1978–1987 to 1,208 in 2003–2012), among others. With ongoing drought in the region resulting in declining surface-water supplies in Arizona, groundwater may play an even larger role in satisfying water needs in the state. The AGEx series of maps provides a nonspecialist audience with an improved understanding of historical, current, and changes in groundwater levels in Arizona.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"64 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Effects of inflection curvature on flow interference at furcating fracture intersections 弯曲曲率对分叉裂缝相交处流动干涉的影响

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-18 DOI: 10.1007/s10040-023-02735-1

Yihang Huang, Jiazhong Qian, Yong Liu, Haichun Ma, Lei Ma, Weidong Zhao

{"title":"Effects of inflection curvature on flow interference at furcating fracture intersections","authors":"Yihang Huang, Jiazhong Qian, Yong Liu, Haichun Ma, Lei Ma, Weidong Zhao","doi":"10.1007/s10040-023-02735-1","DOIUrl":"https://doi.org/10.1007/s10040-023-02735-1","url":null,"abstract":"Understanding and quantifying the flow process at fracture intersections is critical for the accurate modeling of field-scale discrete fracture networks (DFNs) but remains challenging. Particularly, the geometric features of the inflection points inside the intersection are usually ignored, limiting insight into the flow behavior at the intersection. To fill this knowledge gap, the effect of the inflection curvature at intersections was investigated based on direct numerical simulations by solving Navier-Stokes equations. The inflection points at the intersection were classified as α and β, corresponding to the radii of curvature Rα and Rβ, respectively. The effect of Rα, Rβ on flow redistribution and head loss was systematically analyzed and the sensitivity to flow nonlinearity was determined by the Morris method. The results demonstrated that the inflection curvature of the intersection has a significant effect on head loss but a negligible effect on flow redistribution. With the increase of curvature radius, the flow nonlinearity caused by inflection β enhances and that caused by α diminishes. Nonlinear flow is more sensitive to variations in Rβ than Rα. The effect of intersection geometry diminishes with the decrease of hydraulic gradient or the increase of distance from the intersection. Further, the critical distance of the intersection’s interference range was assessed by considering different indicators. The results can provide a reference for parameter selection and calculation simplification in DFN modeling.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"43 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Shallow groundwater characterisation and hydrograph classification in the coastal city of Ōtautahi/Christchurch, New Zealand 新西兰沿海城市Ōtautahi/基督城浅层地下水特征和水文分类

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-15 DOI: 10.1007/s10040-023-02745-z

Amandine L. Bosserelle, Leanne K. Morgan, David E. Dempsey, Irene Setiawan

{"title":"Shallow groundwater characterisation and hydrograph classification in the coastal city of Ōtautahi/Christchurch, New Zealand","authors":"Amandine L. Bosserelle, Leanne K. Morgan, David E. Dempsey, Irene Setiawan","doi":"10.1007/s10040-023-02745-z","DOIUrl":"https://doi.org/10.1007/s10040-023-02745-z","url":null,"abstract":"Groundwater is present at shallow depth under many coastal low-lying cities. Despite the importance of protecting coastal urbanised areas from flooding and climate-change-induced sea-level rise, the effects of shallow groundwater fluctuations are rarely investigated. The aim of this study was to determine characteristics of shallow groundwater, including spatial and temporal trends in depths to groundwater and their relationship to natural and anthropogenic stressors. The study uses depth to groundwater measurements from a uniquely extensive and densely spaced monitoring network in Ōtautahi/Christchurch, New Zealand. Data-driven analysis approaches were applied, including spatial interpolation, autocorrelation, clustering, cross-correlation and trend analysis. These approaches are not commonly applied for groundwater assessments despite the potential for them to provide insights and information for city-wide systems. The comprehensive approach revealed discernible clusters and trends within the dataset. Responses to stresses such as rainfall events and stream flow were successfully classified using clustering analysis. The time series analysis indicated that in areas of shallow groundwater, low variation in levels occurred and this was also found using clustering. However, attributing some clusters to specific hydrogeological attributes or stressors posed challenges. The primary feature in hydrograph classification proved to be the proximity to tidal rivers and their correlation with tidal signals. These results highlight the value of using large datasets to characterise spatial and temporal variability of shallow groundwater in urban coastal settings and to assist with monitoring infrastructure planning in the face of future climate-change hazards.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"15 2","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Satellite-based estimates of declining groundwater storage in the transboundary Cambodia-Mekong River Delta Aquifer of the Lower Mekong region, Southeast Asia 基于卫星的对东南亚湄公河下游地区柬埔寨-湄公河三角洲跨界含水层地下水储量下降的估计

IF 2.8 3区地球科学

Hydrogeology Journal Pub Date : 2023-11-15 DOI: 10.1007/s10040-023-02746-y

Surabhi Upadhyay, Sangam Shrestha, Ho Huu Loc, S. Mohanasundaram, Santosh Dhungana, Sokneth Lim, Natthachet Tangdamrongsub

{"title":"Satellite-based estimates of declining groundwater storage in the transboundary Cambodia-Mekong River Delta Aquifer of the Lower Mekong region, Southeast Asia","authors":"Surabhi Upadhyay, Sangam Shrestha, Ho Huu Loc, S. Mohanasundaram, Santosh Dhungana, Sokneth Lim, Natthachet Tangdamrongsub","doi":"10.1007/s10040-023-02746-y","DOIUrl":"https://doi.org/10.1007/s10040-023-02746-y","url":null,"abstract":"The Cambodia-Mekong River Delta Aquifer, a vital transboundary aquifer in the Lower Mekong Region of Southeast Asia, faces escalating challenges due to excessive groundwater extraction for agriculture and domestic purposes. In response, this study utilizes the Gravity Recovery and Climate Experiment (GRACE) satellite estimates, combined with land-surface-model and remote-sensing datasets to estimate groundwater storage anomalies (GWSA) across the aquifer where traditional monitoring is limited. The study further evaluates the consistency of GRACE-derived data in comparison to both localized in situ measurements and a global-scale hydrological model. Additionally, the spatio-temporal trends in groundwater depletion over a 14-year span (2003–2016) were mapped. The results reveal a good agreement between GRACE-derived GWSA, PC-Raster Global Water Balance (PCR-GLOBWB) model outputs, and observed in situ measurements, thereby underscoring the pivotal role of satellite observations in comprehensively assessing groundwater resources within the aquifer. The findings expose a concerning downward trend, with groundwater storage declining at a rate of ~0.68 cm/year, resulting in a total volume loss of 18.28 km3 over the 14-year span. Notably, the depletion rate is higher in the coastal regions of the Mekong Delta and certain areas within the Tonle Sap Basin. Discrepancies between GRACE and observed GWSA are attributed to multiple factors, including the absence of local signals, intricate hydrogeological dynamics, limitations in specific yield and storage estimations, and the uneven distribution of monitoring wells in the region. This research emphasizes the potential of GRACE estimates to supplement in situ observations on a regional scale, establishing a critical foundation for transboundary groundwater management strategies.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"9 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138525050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Determinación del aporte de agua y de la profundidad de las raíces activas de plantas leñosas mediante un trazador de deuterio en un sitio de Savannah en el norte de la cuenca de Stampriet, Namibia 在纳米比亚斯坦普里特盆地北部萨凡纳的一个地点，用氘示踪剂测定木本植物的水分供应和活性根的深度

3区地球科学

Hydrogeology Journal Pub Date : 2023-11-14 DOI: 10.1007/s10040-023-02747-x

Shoopala Uugulu, Heike Wanke, Paul Koeniger

{"title":"Determinación del aporte de agua y de la profundidad de las raíces activas de plantas leñosas mediante un trazador de deuterio en un sitio de Savannah en el norte de la cuenca de Stampriet, Namibia","authors":"Shoopala Uugulu, Heike Wanke, Paul Koeniger","doi":"10.1007/s10040-023-02747-x","DOIUrl":"https://doi.org/10.1007/s10040-023-02747-x","url":null,"abstract":"Abstract Woody plants play a significant role in the global water cycle through water uptake by roots and evapotranspiration. A deuterium tracer was used to assess the active root depths for Salvia mellifera and Boscia albitrunca in the Ebenhaezer area (western Namibia). The tracer was inserted at different soil depths in December 2016. Xylem cores were obtained using an increment borer, and transpired water was collected using transpiration bags zipped around the plants’ leaves. Groundwater was collected from boreholes. Soil samples were collected after the rainy season using a hand auger. Xylem and soil water were extracted using a cryogenic vacuum extraction method and analysed for stable water isotopes. Only one S. mellifera transpiration sample showed a high deuterium content (516‰) where the tracer was inserted at 2.5-m soil depth. Elevated deuterium contents were observed in two S. mellifera xylem samples; tracer had been applied at 2.5 and 3 m depth (yielding 35 and 31‰ deuterium, respectively), which constitutes a possible active-root depth range for S. mellifera . At the end of the study period (May 2017), the average δ 18 O value for B. albitrunca xylem samples was similar to that of groundwater. The δ 18 O value for S. mellifera was between that of soil water and groundwater, indicating that this species uses groundwater and soil water available for groundwater recharge. Determination of the active root depth and source water for these species would help improve hydrological modelling by incorporating the influence of woody plants on groundwater recharge.","PeriodicalId":13013,"journal":{"name":"Hydrogeology Journal","volume":"82 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134901141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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