<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The study concerned changing status of water retention within an unique nature complex of the Białowieża Primeval Forest. The retention was evaluated based on an analysis of research results on water outflow from the lowland catchment of the river Łutownia - representative for physiographic conditions as well as those of habitats and tree stands in Poland’s part of the Forest. The catchment in the lowland hydrometric dissection at the Pogorzelce village - Old Białowieża Wilderness, covers the area of 120.1 km2 with natural flow conditions preserved. A unified sequence of measurements carried out since 1966 using unchanged methodology with respect to precipitation, air temperature and forest management status allowed to separate different phases of changes occurring in water resources of this protected forest complex. There were appraised periodical runoff changes and cycles including a decrease in water resources which occurred at the turn of the century. The retention capacity of the catchment was determined based on periodical changes in rainfall-runoff relations and the ongoing process of deteriorating water conditions of forest ecosystem was interpreted.</p></abstract>

The study concerned changing status of water retention within an unique nature complex of the Białowieża Primeval Forest. The retention was evaluated based on an analysis of research results on water outflow from the lowland catchment of the river Łutownia - representative for physiographic conditions as well as those of habitats and tree stands in Poland’s part of the Forest. The catchment in the lowland hydrometric dissection at the Pogorzelce village - Old Białowieża Wilderness, covers the area of 120.1 km2 with natural flow conditions preserved. A unified sequence of measurements carried out since 1966 using unchanged methodology with respect to precipitation, air temperature and forest management status allowed to separate different phases of changes occurring in water resources of this protected forest complex. There were appraised periodical runoff changes and cycles including a decrease in water resources which occurred at the turn of the century. The retention capacity of the catchment was determined based on periodical changes in rainfall-runoff relations and the ongoing process of deteriorating water conditions of forest ecosystem was interpreted.

Changes in runoff as an indicative measure of water retention status in the Białowie˝a Primeval Forest

Forest Research Institute, Department of Forest Ecology, Sękocin Stary, Braci Leśnej 3, 05– 090 Raszyn, Poland, phone: 48 22 7150526, fax: 22 7150507

Folia Forestalia Polonica

The study concerned changing status of water retention within an unique nature complex of the Białowieża Primeval Forest. The retention was evaluated based on...

Changes in runoff as an indicative measure of water retention status in the Białowie˝a Primeval Forest

Published Online: Oct 12, 2013

Page range: 72 - 88

DOI: https://doi.org/10.2478/ffp-2013-0008

Keywords
runoff, natural forests, conditions of changes in retention status

This content is open access.

Changes in runoff as an indicative measure of water retention status in the Białowie˝a Primeval Forest

Published Online: Oct 12, 2013

Page range: 72 - 88

DOI: https://doi.org/10.2478/ffp-2013-0008

Keywordsrunoff, natural forests, conditions of changes in retention status

This content is open access.

Keywords
runoff, natural forests, conditions of changes in retention status