Object

Title: River-lake system in a mosaic landscape; main results and some implications for theory and practice from studies on the river Jorka system (Masurian Lakeland, Poland)

Creator:

Hillbricht-Ilkowska, Anna

Date issued/created:

2002

Resource Type:

Article

Subtitle:

Jorka river-lake system - synthesis of the studies

Contributor:

Polish Academy of Sciences. Institute of Ecology

Publisher:

Polish Academy of Sciences. Institute of Ecology. Publishing Office

Place of publishing:

Dziekanów Leśny

Description:

Pages 543-550 ; 27 cm ; Bibliographical references (pages 549-550)

Abstract:

The basic results and conclusions of multi-year studies (described in detail in previous papers) on the river-lake system in the lakeland region of north-eastern Poland are shortly presented in relation to the selected general ecological problems. The study area was proved to be representative of the mosaic landscape structure and of the river-lake system as a trophic continuum with the spatial pattern of human impact established a century ago. Generally low export rates of nutrients and relatively low input to the lakes were found as typical of the region. However, year-to-year variation in nutrient export from the lake watersheds was high, mostly related to the discharge variation, and highest in the vernal period; the highest values were found for polluted fragments of the watershed. The long-term relative stability of in-lake trophic conditions was found and their basic relation to the lake position in the river system. The role of wetlands (isolated patches and the zones close to lakes) in diminishing the nutrient input was proved and their vegetation was described. Some consequences of the possible global warming and decrease in discharge and water table in the region were pointed out, such as the pulsing (concentrated in the freshet period) system of water and nutrient supplying, sink or source function of lakes in the river system (positive or negative nutrient retention in successive lakes), change in eutrophication rate, and its symptoms. The main implications for watershed management in the lakeland region are indicated.

Relation:

Polish Journal of Ecology

Volume:

50

Issue:

4

Start page:

543

End page:

550

Resource Identifier:

oai:rcin.org.pl:121290 ; oai:rcin.org.pl:121290 ; ISSN 1505-2249

Source:

MiIZ PAN, call no. P.2840 ; click here to follow the link

Language:

eng

Language of abstract:

Rights:

Creative Commons Attribution BY 3.0 PL license

Terms of use:

Copyright-protected material. [CC BY 3.0 PL] May be used within the scope specified in Creative Commons Attribution BY 3.0 PL license, full text available at: ; -

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.

Object collections:

Last modified:

Apr 21, 2020

In our library since:

Apr 21, 2020

Number of object content hits:

3

All available object's versions:

https://rcin.org.pl/publication/91512

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