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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yang, Zhi Zhou, Yangxiao Wenninger, Jochen Uhlenbrook, Stefan Wang, Xusheng Wan, Li |
| Copyright Year | 2017 |
| Abstract | The interactions between groundwater and surface water have been significantly affected by human activities in the semi-arid Hailiutu catchment, northwest China. Several methods were used to investigate the spatial and temporal interactions between groundwater and surface water. Isotopic and chemical analyses of water samples determined that groundwater discharges to the Hailiutu River, and mass balance equations were employed to estimate groundwater seepage rates along the river using chemical profiles. The hydrograph separation method was used to estimate temporal variations of groundwater discharges to the river. A numerical groundwater model was constructed to simulate groundwater discharges along the river and to analyze effects of water use in the catchment. The simulated seepage rates along the river compare reasonably well with the seepage estimates derived from a chemical profile in 2012. The impacts of human activities (river-water diversion and groundwater abstraction) on the river discharge were analyzed by calculating the differences between the simulated natural groundwater discharge and the measured river discharge. Water use associated with the Hailiutu River increased from 1986 to 1991, reached its highest level from 1992 to 2000, and decreased from 2001 onwards. The reduction of river discharge might have negative impacts on the riparian ecosystem and the water availability for downstream users. The interactions between groundwater and surface water as well as the consequences of human activities should be taken into account when implementing sustainable water resources management in the Hailiutu catchment.Les interactions entre les eaux souterraines et les eaux de surface ont été affectées de manière significative par les activités anthropiques dans le bassin versant d’Hailiutu en contexte semi-aride, dans le Nord-Ouest de la Chine. Plusieurs méthodes ont été utilisées pour étudier les interactions spatio-temporelles entre les eaux souterraines et les eaux de surface. Les analyses isotopiques et chimiques des échantillons d’eau ont permis de déterminer que l’eaux souterraines alimentent la rivière Hailiutu, et les équations de bilan de masse ont été employées pour estimer le taux d’alimentation par les eaux souterraines le long de la rivière en utilisant des profils chimiques. La méthode de séparation d’hydrogramme a été utilisée pour estimer les variations temporelles de l’alimentation de la rivière par les eaux souterraines. Un modèle numérique de l’écoulement des eaux souterraines a été élaborée pour simuler l’alimentation par les eaux souterraines le long de la rivière et pour analyser les effets de l’utilisation des ressources en eau dans le bassin versant. Les taux d’alimentation simulés le long de la rivière s’accordent de façon raisonnable avec les estimations d’alimentation dérivées du profil chimique de 2012. Les impacts des activités anthropiques (diversion de l’eau de rivière et prélèvement en eaux souterraines) sur le débit de la rivière ont été analysés en calculant les différences entre l’alimentation naturelle simulée par les eaux souterraines et le débit mesuré de la rivière. L’utilisation de l’eau associées à la rivière Hailiutu a augmenté entre 1986 et 1991, atteignant son niveau le plus élevé entre 1992 et 2000, et décroissant à partir de 2001. La réduction du débit de la rivière peut avoir des impacts négatifs sur l’écosystème riverain et pour la disponibilité en eau pour les usagers situés en aval. Les interactions entre les eaux souterraines et les eaux de surface ainsi que les conséquences sur les activités anthropiques devraient être prises en considération lors de la mise en œuvre d’une gestion durable des ressources en eau dans le bassin versant d’Hailiutu.Las interacciones entre agua subterránea y agua superficial han sido afectadas significativamente por las actividades humanas en la cuenca semiárida de Hailiutu, noroeste de China. Se utilizaron varios métodos para investigar las interacciones espaciales y temporales entre el agua subterránea y el agua superficial. Los análisis isotópicos y químicos de las muestras de agua determinaron las descargas de agua subterránea al río Hailiutu y las ecuaciones del balance de masa fueron empleadas para estimar las tasas de filtración del agua subterránea a lo largo del río usando perfiles químicos. Se utilizó el método de separación de hidrogramas para estimar las variaciones temporales de las descargas de aguas subterráneas al río. Se construyó un modelo numérico de agua subterránea para simular las descargas de agua subterránea a lo largo del río y para analizar los efectos del uso del agua en la cuenca. Las tasas de filtración simuladas a lo largo del río se comparan razonablemente bien con las estimaciones de filtración derivadas de un perfil químico en 2012. Se analizaron los impactos de las actividades humanas (desvío de agua y captación de agua subterránea) en la descarga del río mediante el cálculo de las diferencias entre la descarga natural simulada del agua subterránea y la descarga de río medida. El uso del agua asociado con el río Hailiutu aumentó de 1986 a 1991, alcanzó su nivel más alto entre 1992 y 2000 y disminuyó a partir de 2001. La reducción de la descarga del río podría tener impactos negativos en el ecosistema ribereño y la disponibilidad de agua para los usuarios aguas abajo. Las interacciones entre el agua subterránea y el agua superficial, así como las consecuencias de las actividades humanas, deben tenerse en cuenta al aplicar una gestión sostenible de los recursos hídricos en la cuenca Hailiutu.在中国西北地区半干旱的Hailiutu流域,地下水和地表水之间的相互作用受到人类活动的极大影响。采用几种方法调查了地下水和地表水之间时空上的相互作用。水样的同位素和化学分析确定地下水排泄到Hailiutu河,采用质量平衡方程利用化学剖面估算了沿河流的地下水渗入量。利用自记水位计分离方法估算了地下水排泄到河流的时间变化。建立了数值地下水模型模拟沿河流的地下水排泄,分析了流域内水利用的影响。沿河流的模拟渗入量与源自2012年化学剖面的渗入量估算结果对比良好。通过计算模拟的天然地下水排泄量和观测的河流排泄量之间的差,分析了人类活动(河水改道及地下水抽取)对河流排泄的影响。与Hailiutu河相关的水利用从1986年到1991年呈增加势态,从1992年到2000年达到最高水平,然后从2001年开始下降。河流排泄量的减少可能对河岸带生态系统及下游用水者的水利用量产生负面影响。在实施Hailiutu流域可持续的水源管理中,应该考虑地下水和地表水之间的相互作用以及人类活动的影响。As interações entre águas subterrâneas e águas superficiais tem sido significativamente afetadas por atividades humanas na bacia hidrográfica semiárida de Hailutu, noroeste da China. Vários métodos foram utilizados para investigar as interações espaciais e temporais entre as águas subterrâneas e as águas superficiais. Análises químicas e isotópicas de amostras de água determinaram que as águas subterrâneas descarregam no Rio Hailiutu, e as equações do balanço de massa foram empregadas para estimar a infiltração de águas subterrâneas ao longo do rio utilizando perfis químicos. O método de separação do hidrograma foi utilizado para estimar as variações temporais da descarga de águas subterrâneas para o rio. Um modelo numérico de águas subterrâneas foi construído para simular a descarga de águas subterrâneas ao longo do rio e analisar os efeitos do uso da água na bacia. A taxa de infiltração estimada ao longo do rio se compara razoavelmente bem com as estimativas de infiltração derivadas de um perfil químico em 2012. Os impactos das atividades humanas (derivação de água do rio e captação de águas subterrâneas) na descarga do rio foram analisados calculando as diferenças entre a descarga natural simulada e a descarga medida no rio. Os usos da água associados ao Rio Hailiutu aumentaram de 1986 até 1991, atingindo seu mais alto nível entre 1992 até 2000, e decresceu de 2001 em diante. A redução na descarga do rio pode ter efeitos negativos no ecossistema ribeirinho e na disponibilidade de água para os usuários a jusante. As interações entre águas subterrâneas e águas superficiais, bem como as consequências das atividades humanas, devem ser levadas em conta ao implementar a gestão sustentável dos recursos hídricos na bacia de Hailiutu. |
| Starting Page | 1341 |
| Ending Page | 1355 |
| Page Count | 15 |
| File Format | |
| ISSN | 14312174 |
| Journal | Hydrogeology Journal |
| Volume Number | 25 |
| Issue Number | 5 |
| e-ISSN | 14350157 |
| Language | Portuguese |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2017-02-02 |
| Publisher Institution | International Association of Hydrogeologists |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Groundwater/surface water relations Isotopes Hydrochemistry Groundwater model China Hydrogeology Hydrology/Water Resources Geology Water Quality/Water Pollution Geophysics/Geodesy Waste Water Technology Water Pollution Control Water Management Aquatic Pollution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Earth and Planetary Sciences Water Science and Technology |
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