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Modelling values of river macrophyte metrics using artificial neural networks

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Gebler D., Kayzer D., Budka A., Szoszkiewicz K.

Infrastruktura i Ekologia Terenów Wiejskich

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2012

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nr 1/IV

The results of field research at 230 river sections located throughout Poland were used to examine the possibility of predicting values of macrophyte metrics of ecological status. Artificial intelligence methods such as artificial neural networks were used in the modelling. The physicochemical parameters of water (alkalinity, conductivity, nitrate and ammonium nitrogen, reactive and total phosphorus, and biochemical oxygen demand) were used as the explanatory (modelling) variables. The explained (modelled) parameters were the Polish MIR (Macrophyte Index for Rivers), the British MTR (Mean Trophic Rank) and the French IBMR (River Macrophytes Biological Index). The quality of the constructed models was assessed using the normalized root mean square error (NRMSE) and the r–Pearson’s linear correlation coefficient between variables modelled by the networks and calculated on the basis of the botanical research. These analyses demonstrated that the network modelling MIR values had the highest accuracy. The lowest prediction accuracy was obtained for MTR and IBMR indices. The differences between particular models are likely to result from better adjustment of the Polish method to local rivers (particularly in terms of indicator species used).

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Spatial changes in phytoplankton, zooplankton and macrobenthos communities in Drawa River

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Czerniawski R., Gozdzik I., Krepski T., Slugocki L., Pilecka-Rapacz M., Domagala J.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2013

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tom 10

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Analysis of technical feasibility of status improvement the river and valley environment on the example of selected objects

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Popek Z., Wasilewicz M.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2017

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tom 49

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nr 2

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Analysis of the connections between hydromorphological conditions and biocenotic diversity on the example of the Zwolenka River

84%

Sawa K., Popek Z.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2011

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tom 43

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nr 2

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Determination of flow regimes for protection of in-river values in New Zealand: an overview

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Biggs B. J. F., Ibbitt R. P., Jowett I. G.

International Journal of Ecohydrology and Hydrobiology

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2008

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tom 08

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nr 1

Competition for water has intensified. Determining when, and how much, water needs to be left for in-river values is a challenge world-wide. In New Zealand there is now a well established connection between the flow regime, as defined by the magnitude and variability of flows, and suitability for in-river values. Physical habitat requirements of the biota have been defined and related to overall flow regimes (e.g., mountain fed, hill fed and lowland fed). Key to this is understanding both minimum flow and variability requirements of the biota. This paper overviews some of this science and illustrates how this knowledge has helped resolve river resource management issues in New Zealand.

Ograniczanie wyników

2 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

1 Infrastruktura i Ekologia Terenów Wiejskich

1 International Journal of Ecohydrology and Hydrobiology

1 Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

2 Popek Z.

1 Biggs B. J. F.

1 Budka A.

1 Czerniawski R.

1 Domagala J.

1 Gebler D.

1 Gozdzik I.

1 Ibbitt R. P.

1 Jowett I. G.

1 Kayzer D.

1 Krepski T.

1 Pilecka-Rapacz M.

1 Sawa K.

1 Slugocki L.

1 Szoszkiewicz K.

1 Wasilewicz M.

1 2017

1 2013

1 2012

1 2011

1 2008

Modelling values of river macrophyte metrics using artificial neural networks

Spatial changes in phytoplankton, zooplankton and macrobenthos communities in Drawa River

Analysis of technical feasibility of status improvement the river and valley environment on the example of selected objects

Analysis of the connections between hydromorphological conditions and biocenotic diversity on the example of the Zwolenka River

Determination of flow regimes for protection of in-river values in New Zealand: an overview