Spatial patterns of stream alimentation in lowland areas of NW Poland. A hydrochemical and geostatistical analysis

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Title:Spatial patterns of stream alimentation in lowland areas of NW Poland. A hydrochemical and geostatistical analysis
Creators:
Stach, A.; frdstach at amu dot edu dot pl; Institute of Quaternary Research and Geoecology, Adam Mickiewicz University, Fredry 10, 61-701 Poznań, Poland
Kostrzewski, A.; Institute of Quaternary Research and Geoecology, Adam Mickiewicz University, Fredry 10, 61-701 Poznań, Poland
Mazurek, M.; Institute of Quaternary Research and Geoecology, Adam Mickiewicz University, Fredry 10, 61-701 Poznań, Poland
Michalska, G.M.; Adam Mickiewicz University Geoecological Station, Storkowo 32, 78-450 Grzmiąca, Poland
Zwoliński, Z.; Institute of Quaternary Research and Geoecology, Adam Mickiewicz University, Fredry 10, 61-701 Poznań, Poland
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 51, 3, pp. 221-240
Uncontrolled Keywords:Stream Alimentation, Catchment Scale, Hydrochemical Profiling, Semivariograms, NW Poland

Abstract

Areas of the Last Glaciation in northern Poland differ widely as to the conditions controlling the formation of river runoff and solute loads. The aim of the research was to identify chief mechanisms of stream alimentation in this area depending on the scale of a catchment. The analysis rested on data from hydrochemical profiling. Three types of systems were found to occur: in spring-head catchments with areas of the order of 10-2 km2, in small catchments (100 km2), and in medium-sized ones (101–102 km2). The first is connected with the mixing of soil- and groundwater, the second, with the mixing of waters from relatively homogeneous subcatchments, and the third, with the mixing of groundwater from various water-bearing horizons. In headwater catchments, river waters reach a new physico-chemical equilibrium at a distance of 20–40 m; in small catchments, two nested autocorrelation structures (150 and 400 m) reflect the sequence of land cover changes and distances between main tributaries; in medium-sized catchments, river waters demonstrate similarity at a distance of between 300 and 450 m and 1.2 km; it is controlled by the sequence of successive valley reaches of different origins (melt-out basins & ravines).The reported analysis justifies the hypothesis that in the areas of northern Poland covered by the Last Glaciation it is possible to identify the zones and forms of channel alimentation on the basis of hydrochemical interpretation of runoff recorded in gauging profiles only in the case of small catchments no larger than n ? 100 km2. In larger catchments, it is only possible to differentiate between “new water” (direct fall of precipitation on the channel and the overland flow) and “old water”, composed of a mixture of soil water and the alimentation from various water-bearing horizons.

Official URL: http://147.213.145.2/vc/vc1.asp?Kod=51%2C3&B1=Submit

Title:Spatial patterns of stream alimentation in lowland areas of NW Poland. A hydrochemical and geostatistical analysis
Translated title:Priestorové rozloženie tvorby odtoku v nížinných oblastiach severozápadného Poľska. Hydrochemická a geoštatistická analýza
Creators:
Stach, A.; frdstach at amu dot edu dot pl; Institute of Quaternary Research and Geoecology, Adam Mickiewicz University, Fredry 10, 61-701 Poznań, Poland
Kostrzewski, A.; Institute of Quaternary Research and Geoecology, Adam Mickiewicz University, Fredry 10, 61-701 Poznań, Poland
Mazurek, M.; Institute of Quaternary Research and Geoecology, Adam Mickiewicz University, Fredry 10, 61-701 Poznań, Poland
Michalska, G.M.; Adam Mickiewicz University Geoecological Station, Storkowo 32, 78-450 Grzmiąca, Poland
Zwoliński, Z.; Institute of Quaternary Research and Geoecology, Adam Mickiewicz University, Fredry 10, 61-701 Poznań, Poland
Uncontrolled Keywords:Stream Alimentation, Catchment Scale, Hydrochemical Profiling, Semivariograms, NW Poland
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:51
Number:3
Page Range:pp. 221-240
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:4639
Item Type:Article
Deposited On:21 Oct 2009 18:04
Last Modified:21 Oct 2009 16:43

Citation

Stach, A.; Kostrzewski, A.; Mazurek, M.; Michalska, G.M.; Zwoliński, Z. (2003) Spatial patterns of stream alimentation in lowland areas of NW Poland. A hydrochemical and geostatistical analysis. Journal of Hydrology and Hydromechanics, 51 (3). pp. 221-240. ISSN 0042-790X

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