DOI: 10.5194/hess-19-1015-2015
Scopus记录号: 2-s2.0-84923535043
论文题名: Quantification of anthropogenic impact on groundwater-dependent terrestrial ecosystem using geochemical and isotope tools combined with 3-D flow and transport modelling
作者: Zurek A ; J ; , Witczak S ; , Dulinski M ; , Wachniew P ; , Rozanski K ; , Kania J ; , Postawa A ; , Karczewski J ; , Moscicki W ; J
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 2 起始页码: 1015
结束页码: 1033
语种: 英语
Scopus关键词: Abstracting
; Aquifers
; Ecology
; Ecosystems
; Forestry
; Geochemistry
; Groundwater
; Groundwater flow
; Hydrochemistry
; Isotopes
; Landforms
; Seepage
; Water levels
; Wetlands
; Anthropogenic impacts
; Anthropogenic pressures
; Continuous operation
; Densely populated regions
; Environmental tracers
; Groundwater dependent ecosystems
; Groundwater dependent terrestrial ecosystems
; Water table drawdown
; Groundwater resources
; anthropogenic effect
; aquifer characterization
; fen
; geochemical survey
; groundwater resource
; isotopic analysis
; quantitative analysis
; seepage
; terrestrial ecosystem
; three-dimensional flow
; Ecosystems
; Models
; Transport
; Poland
英文摘要: Groundwater-dependent ecosystems (GDEs) have important functions in all climatic zones as they contribute to biological and landscape diversity and provide important economic and social services. Steadily growing anthropogenic pressure on groundwater resources creates a conflict situation between nature and man which are competing for clean and safe sources of water. Such conflicts are particularly noticeable in GDEs located in densely populated regions. A dedicated study was launched in 2010 with the main aim to better understand the functioning of a groundwater-dependent terrestrial ecosystem (GDTE) located in southern Poland. The GDTE consists of a valuable forest stand (Niepolomice Forest) and associated wetland (Wielkie BÅoto fen). It relies mostly on groundwater from the shallow Quaternary aquifer and possibly from the deeper Neogene (Bogucice Sands) aquifer. In July 2009 a cluster of new pumping wells abstracting water from the Neogene aquifer was set up 1 km to the northern border of the fen. A conceptual model of the Wielkie BÅoto fen area for the natural, pre-exploitation state and for the envisaged future status resulting from intense abstraction of groundwater through the new well field was developed. The main aim of the reported study was to probe the validity of the conceptual model and to quantify the expected anthropogenic impact on the studied GDTE. A wide range of research tools was used. The results obtained through combined geologic, geophysical, geochemical, hydrometric and isotope investigations provide strong evidence for the existence of upward seepage of groundwater from the deeper Neogene aquifer to the shallow Quaternary aquifer supporting the studied GDTE. Simulations of the groundwater flow field in the study area with the aid of a 3-D flow and transport model developed for Bogucice Sands (Neogene) aquifer and calibrated using environmental tracer data and observations of hydraulic head in three different locations on the study area, allowed us to quantify the transient response of the aquifer to operation of the newly established Wola Batorska well field. The model runs reveal the presence of upward groundwater seepage to the shallow Quaternary aquifer of the order of 440 m3 dg-1. By the end of the simulation period (2029), with continuous operation of the Wola Batorska well field at maximum permissible capacity (ca. 10000 m3 dg-1), the direction of groundwater seepage will change sign (total change of the order of 900 m3dg-1). The water table drawdown in the study area will reach ca. 30 cm. This may have significant adverse effects on functioning of the studied GDTE. © Author(s) 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78596
Appears in Collections: 气候变化事实与影响
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作者单位: AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, Krakow, Poland; AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
Recommended Citation:
Zurek A,J,, Witczak S,et al. Quantification of anthropogenic impact on groundwater-dependent terrestrial ecosystem using geochemical and isotope tools combined with 3-D flow and transport modelling[J]. Hydrology and Earth System Sciences,2015-01-01,19(2)