Hydrological control of the eutrophication at Sulejów...
Transcript of Hydrological control of the eutrophication at Sulejów...
2015-05-08 1
Artur Magnuszewski
Iwona Wagner
Maciej Zalewski
Hydrological control of the eutrophication at Sulejów Reservoir, Poland
2015-05-08 2
Year urban
population
(%)
rural
population
(%)
Length of
the main
sewerage
systems
in km
1995 82,1 3,1
5359
2000 83 10,8
16222
2005 84,5 20,4
36821
2007 85 23,8
43536
2008 85,5 25,7
46943
2009 85,8 26,9
50454
Percentage o population served by the main sewerage systems in
Poland years 1995-2009 (GUS, 2010)
0
10
20
30
40
50
60
70
80
90
100
1990 1995 2000 2005 2010
year%
urban population
rural population
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Location of the Pilica river and study area
Sulejow gauge
A=3909 km2
MQ=27.6 m3/s
HQ=161 m3/s
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SRTM
Global Land Cover Facility,
Uniwersytet Maryland USA
(http://glcf.umiacs.umd.edu).
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river channel density
00,20,40,60,8
11,21,41,6
Przed
borz
Sulejow
Smardz
ewice
Spa
la
Nowe Miasto
Bialobrze
gi
Pilica
ujście
km
/km
^2
River network density(map MPHP)
A
(km2)
SSQ
(m3/s)
SSq
(dm3/s km2)
Przedborz 2544,729087 15,5 6,1
Sulejow 3984,56001 22,6 5,7
Smardzewice 4932,946635 27,2 5,5
Spala 5967,244604 31,6 5,3
Nowe Miasto 7796,110072 36,5 4,7
Bialobrzegi 8656,007956 45,1 5,2
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Population density
pers/km2
population density in subcatchments
0
50
100
150
200
250
300
350
Przedbo
rz
Sulejo
w
Smard
zewice
Spala
Now
e Mia
sto
Bialo
brzegi
Pilica
ujście
pe
rs/k
m2
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sewage volume per unit area m3/km
2
0
1000
2000
3000
4000
5000
6000
7000
Przed
borz
Sulejow
Smardz
ewice
Spa
la
Now
e Miasto
Bialobrzeg
i
Pilica ujście
Sewage volume per unit area m3/km2
sewage share in river run-off
0
0,050,1
0,150,2
0,250,3
0,350,4
0,45
Przed
borz
Sulejow
Smardz
ewice
Spa
la
Now
e Miasto
Bialobrze
gi
Pilica
ujście
%
Sewage in river run-off (%)
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floodplain area in the subcatchmnets
02468
10121416
Przed
borz
Sulejow
Smardz
ewice
Spa
la
Nowe Miasto
Bialobrze
gi
Pilica
ujście
%
Floodplain area
(Map of flooding risk
WORP)
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Average distance of the settelment from the river network
0
500
1000
1500
2000
2500
3000
Przed
bórz
Sulejów
Smardz
ewice
Spa
ła
Nowe Miasto
Białobrze
gi
ujśc
ie do Wisły
(m
)
Distance to river network – buffer cross Corine Land Cover
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Pieterse N.M., Bleuten W. Jørgensen S.E., 2003, Contribution of point
sources and diffuse sources to nitrogen and phosphorus loads in
lowland river tributaries. Journal of Hydrology 271(2003) 213–225.
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TP
0100200300400500600700800900
1000
Prz
edbo
rz
Sulejow
Sm
ardz
ewice
Spa
la
Now
e M
iasto
Bialobr
zegi
t/year TP calculated
TP tmeasured
TP load measured versus calculated
Measured data from Kiedrzyńska et all., 2012
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Q Pilica + Luciąża =
22,8 + 4,41 m3/s
Reservoir total volume
77,6 mln m3
Storage time = 33 days
Annual sedimentation
= 0,111 mln m3
Sulejów Reservoir
(RZGW + topographic maps)
2015-05-08 13Velocity distribution from CCHE2D model head = 166 m n.p.m. MQ=22,8 m3/s
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Sulejów Reservoir retained 80.4 t of TP load
during the period 19 May 2010 - 19 May 2011
(Kiedrzyńska et all., 2012)
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Conclusions:
- Subcatchments are appropriate units for spatial analysis
- Hydrological parameters should be standardized for comparison
- Urban areas proximity to river channels is important metric
- Hydrodynamic modeling can be used to trace the pollution
- Reservoir has a lacustine zones with a swirl flow which extends
the retention time