development and validation of methods for integrated assessment of ecological status of rivers and...
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Development and validation of methods for integrated assessment of ecological status of
rivers and lakes to support RBMPLake macrophytes
Warsaw, 9-10 February 2011
UWM: Hanna CiecierskaJoanna Ruszczyńska Jan Dziedzic Piotr Dynowski
IEP: Agnieszka KoladaNIVA: Marit Mjelde
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
• To perform field survey of macrophytes in lakes of Wel river catchemnt by different surveyors and using different methods – COMPLETED
• To test and validatie macrophyte method used in Poland in lake ecological status assessment – COMPLETED
• To test and validate the applicability of different macrophyte metrics describing taxonomic composition and abundance in lake ecological status assessment – COMPLETED
• To estimate an uncertainty and risk of misclassification in lake assessment based on macrophytes concerning different surveyours and different methods – RUNNING
• To combine macrophyte-based assessment with assessment based on other biological elements, physico-chemical parameters and hydromorphology
Aims:
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Macrophyte metrics Water quality indicators
TP TN Chla SD PCA1
ESMI 0,66** 0,46* 0,54* Cover (%) 0,45* Cmax 0,58* 0,44* 0,60** 0,73** 0,72** Z 0,72** 0,57* 0,46* 0,63** S 0,51* 0,54* H Hmax 0,43* 0,53* 0,46* 0,55* J Share of (%) Characeae Potamion 0,44* 0,76*** 0,66** 0,66** 0,77*** Nymphaeion Phragmition 0,45* 0,68** 0,69** 0,86*** 0,81***
Relationships between macrophyte indicators and water quality parameters; values of determination coef. R2>0,6 marked in bold
ESMI responds good enough to be applied for lake assessment !!!
Testing ESMI:
0 ,0 4 0 ,0 5 0 ,0 6 0 ,0 7 0 ,0 8 0 ,0 9 0 ,1 0 0 ,1 1 0 ,1 2
Ptot
0 ,2 5
0 ,3 0
0 ,3 5
0 ,4 0
0 ,4 5
0 ,5 0
0 ,5 5
0 ,6 0
0 ,6 5
0 ,7 0
0 ,7 5
ES
MI
Ptot:E S M I: r2 = 0 ,6 5 6 0 ; r = -0 ,8 0 9 9 ; p = 0 ,0 0 4 5 ; y = 0 ,8 1 2 2 - 5 ,1 7 6 1 *x
-4 -3 -2 -1 0 1 2 3
P CA 1
0 ,2 5
0 ,3 0
0 ,3 5
0 ,4 0
0 ,4 5
0 ,5 0
0 ,5 5
0 ,6 0
0 ,6 5
0 ,7 0
0 ,7 5
ES
MI
P CA 1 :E S M I: r2 = 0 ,5 4 2 6 ; r = 0 ,7 3 6 6 ; p = 0 ,0 1 5 1 ; y = 0 ,4 2 2 5 + 0 ,0 5 0 4 *x
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Testing ESMI:
RELATIONSHIPS BETWEEN ESMI AND WATER QUALITY PARAMETERS
Relationships almost linear !!!
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Uncertainty:
SOURCES OF UNCERTAINTY IN MULTIMETRIC ESMI
12 lakes surveyed by using four survey methods of different level of accuracy:• Polish monitoring protocol based on transects and plant communities (synecological approach)• method based on transects and plant species (autecological approach)• method based on phytolittoral mapping• sigma-association method (one lake = one reléve)
METHOD ACCURACY
12 lakes surveyed on 6 to 26 spatially distributed transects:SPATIAL VARIABILITY
10 lakes surveyed by using Polish original monitoring protocol by two or three independent surveyors:
WORKER ERROR
Method:Dąbro
wa Wlk.
Dąbrowa
Mała
Rumian
Zarybi-nek
Tarczynskie
GrądyLidzbarskie
Kiełpin-skie
Hartowiecki
e
Zwiniarz
Neliwa
Wlecz
No of transects 26 21 22 11 16 22 18 11 10 12 6 6
ESMI_trans X XX XXX XX XX XXX XX XXX XX X XX XX
ESMI_sp X X X X X X X X X X X X
ESMI_map X X X X X X X X X X X X
ESMI_sigma X X X X X X X X X X X X
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
MATRIX OF SURVEY METHODS AND NUMBER
OF SURVEYORS PER LAKE
Uncertainty:
0,00
0,10
0,20
0,30
0,40
0,50
0,60
0,70
0,80
0,90
Jeziora głębokie Jeziora płytkie
ESM
I
0,00
0,10
0,20
0,30
0,40
0,50
0,60
0,70
0,80
0,90
ESM
I
ESMI ESMI_gat ESMI_sigm ESMI_map
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Data:
ESMI DISTRIBUTION ACC. TO 4 SURVEY METHODS
OF DIFFERENT ACCURACY
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Metoda ESMI ESMI _gat
ESMI _map
ESMI _sigm
odch. stand.
Jeziora stratyfikowane Wlecz 0,696 0,606 0,607 0,706 0,055 Dąbrowa Wielka 0,708 0,636 0,618 0,673 0,040 Dąbrowa Mała 0,516 0,487 0,391 0,509 0,058 Kiełpińskie 0,425 0,416 0,421 0,410 0,006 Rumian 0,415 0,374 0,382 0,382 0,018 Lidzbarskie 0,352 0,296 0,314 0,284 0,030 Jeziora polimiktyczne Neliwa 0,797 0,759 0,766 0,705 0,038 Hartowieckie 0,481 0,407 0,417 0,531 0,058 Grądy 0,371 0,306 0,276 0,248 0,053 Tarczyńskie 0,360 0,301 0,250 0,410 0,070 Zarybinek 0,381 0,284 0,246 0,302 0,057 Zwiniarz 0,280 0,199 0,249 0,267 0,036
FOUR METHODS OF DIFFERENT LEVEL OF SAMPLING ACCURACY
Data:
0,00
0,10
0,20
0,30
0,40
0,50
0,60
0,70
0,80
0,90
Wlec
z
Rumian
Lidzbarskie
Neliw
a
Harto
wieckie
Zaryb
inek
Jeziora głębokie Jeziora płytkie
ESM
I
0,00
0,10
0,20
0,30
0,40
0,50
0,60
0,70
0,80
0,90
ESM
I
1 2 3
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Data:
ESMI DISTRIBUTION ACC. TO 2 or 3 SURVEYORS
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
LAKES SAMPLED BY TWO OR THREE INDEPENDENT SURVEYORS
Badacz 1 2 3 odch. stand.
Jeziora stratyfikowane Kiełpińskie 0,425 0,471 0,500 0,038 Rumian 0,415 0,383 0,338 0,039 Wlecz 0,696 0,811 - 0,081 Dąbrowa Mała 0,516 0,549 - 0,023 Lidzbarskie 0,352 0,285 - 0,047 Jeziora polimiktyczne Grądy 0,320 0,371 0,354 0,026 Neliwa 0,797 0,675 - 0,086 Hartowieckie 0,481 0,530 - 0,035 Tarczyńskie 0,360 0,263 - 0,069 Zarybinek 0,317 0,381 - 0,045
Data:
75perc. from reference
sites
minimum value
recorded in database
division in log scale
1
0
LCB1 LCB2
Ecological
state
Range of ESMI value
High 0,680 - 1,000 0,680 - 1,000
Good 0,340 - 0,679 0,270 - 0,679
Moderate 0,170 - 0,339 0,110 - 0,269
Poor 0,090 - 0,169 0,050 - 0,109
Bad < 0,090 < 0,050
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Classification:
Original class boundaries of ESMI - range LOG-devided:
Lake name ESMIOriginal
classification
Wlecz 0,696 1
Dąbrowa Wielka 0,708 1
Dąbrowa Mała 0,516 2
Kiełpińskie 0,425 2
Rumian 0,415 2
Lidzbarskie 0,352 2
Neliwa 0,797 1
Hartowieckie 0,481 2
Grądy 0,371 2
Tarczyńskie 0,360 2
Zarybinek 0,381 2Zwiniarz 0,280 2
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Classification:
ORIGINAL ESMI CLASSIFICATION:
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
WORKER ERROR - STRAT LAKES
0
10
20
30
40
50
60
0,01
0,06
0,11
0,16
0,21
0,26
0,31
0,36
0,41
0,46
0,51
0,56
0,61
0,66
0,71
0,76
0,81
0,86
0,91
0,96
ESMI
WORKER ERROR - N-STRAT LAKES
0
20
40
60
80
100
120
0,01
0,06
0,11
0,16
0,21
0,26
0,31
0,36
0,41
0,46
0,51
0,56
0,61
0,66
0,71
0,76
0,81
0,86
0,91
0,96
ESMI
WISERBUGS results for original class boundaries
1
0
Ecological state
Range of ESMI value (one classification for all types)
High
>0,68
Good
0,68 – 0,51
Moderate
0,51 – 0,34
Poor
0,34 – 0,17
Bad
<0,17
75perc.
from reference
sites
equal division
!!
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Classification:
New suggested class boundaries of ESMI - range devided equally:
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
WISERBUGS results for suggested new class boundaries
NEW CLASS BOUNDARIES
0
10
20
30
40
50
60
0,01
0,06
0,11
0,16
0,21
0,26
0,31
0,36
0,41
0,46
0,51
0,56
0,61
0,66
0,71
0,76
0,81
0,86
0,91
0,96
ESMI
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Lake name ESMIOriginal
classification New classification
Wlecz 0,696 1 1
Dąbrowa Wielka 0,708 1 1
Dąbrowa Mała 0,516 2 2
Kiełpińskie 0,425 2 3
Rumian 0,415 2 3
Lidzbarskie 0,352 2 3
Neliwa 0,797 1 1
Hartowieckie 0,481 2 3
Grądy 0,371 2 3
Tarczyńskie 0,360 2 3
Zarybinek 0,381 2 3Zwiniarz 0,280 2 4
Classification:
NEW ESMI CLASSIFICATION:
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund
Jezioro ESMI Error old Error new
Wlecz 0,696 42,4 42,3Dąbrowa Wielka 0,708 26,1 27,8Dąbrowa Mała 0,516 0 50,6Kiełpińskie 0,425 4 8,5Rumian 0,415 6,9 7,1Lidzbarskie 0,352 43,3 43,4
Neliwa 0,797 40,7 0,8Hartowieckie 0,481 69,4 26,9Grądy 0,371 69,6 27,4Tarczyńskie 0,36 70,8 34,3Zarybinek 0,381 69,1 27,4Zwiniarz 0,28 71,3 11,8
Stratified lakes
Non-stratified lakes
Thank you for your attention !!!
Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund