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Numer XXXIX (39)

 

 

Ian G. Littlewood 

Characterisation of river flow regimes for environmental and enginering hydrology: unit hydrographs for rainfall-streamflow modelling

Littlewood I.G., 2008, Characterisation of river flow regimes for environmental and enginering hydrology: unit hydrographs for rainfall-streamflow modelling, Folia Geographica ser. Geographica-Physica, vol. XXXIX (39): 5-36.

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Zbigniew W. Kundzewicz 

Hydrological extremes in the changing world

Kundzewicz Z.W., 2008, Hydrological extremes in the changing world, Folia Geographica ser. Geographica-Physica, vol. XXXIX (39): 37-52.

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Maciej Zalewski 

Ecohydrology - framework for implementation of ecological biotechnologies in integrated water resources management (IRWM)

Zalewski M., 2008, Ecohydrology - framework for implementation of ecological biotechnologies in integrated water resources management (IRWM), Folia Geographica ser. Geographica-Physica, vol. XXXIX (39): 53-62.

Zarys treści w języku angielskim: The dynamics of the water cycle in the given river basin depends on climate, geomorphology, specifics of plant cover, freshwater ecosystems typology and modifications of ecosystem by agriculture, urbanization, industrial development and hydro-technical infrastructure. The water management till the end of 20th century was dominated by mechanistic approach focused on elimination of threats such as floods and droughts and provision of water to societal needs. Biological structure of ecosystems at that time was mostly used as indicator of ecological status (Kolkwitz, Marsson 1908; Water Framework Directive EU). Declining water quality at the world scale and increasing progress in predictive potential of ecology and limnology provided the background for the development of the integrative environmental science - ecohydrology, which started from formulation the question - what is hierarchy of factors which regulate dynamics of hydrology/biota interplay, and further, how it can be used for the problem solving in IWRM. The reduction of point source pollution is dependent on technology, monitoring and law enforcement. However the reduction of impact of the non-source pollution without lowering food production is dependent first of all, on understanding the complexity of the all range of ecological processes among which of the primary importance is interplay between water and biocenosis - both in terrestrial and aquatic phases of hydrological mesocycle. Ecohydrology, transdisciplinary science, which has been developing in the framework of the International Hydrological Programme of UNESCO (IHP V;VI, VII) is sub discipline of hydrology focused on biological aspects of hydrological cycle, provides not only scientific understanding hydrology/biota interplay but also systemic framework how to use ecosystem properties as a new tool for IWRM, complementary to already applied hydrotechnical solutions. The novel element of this approach is the assumption that to reverse degradation of the aquatic ecosystems there is a need not only to protect it, but also to regulate ecosystem performance from landscape to molecular scale. This means biocenotic processes can be regulated by hydrology and vice versa hydrological processes by shaping biocenotic structure and interactions (Zalewski 2000, 2006) The idea is based on understanding the imprinted by evolution, ability to adopt of terrestrial and aquatic organisms to water quantity and quality dynamics in the catchment and aquatic ecosystems (e.g. Zalewski et al. 1990). The integration for synergy of those two aspects at the: river basin processes regulation (H-B and B-H) was named "dual regulation" (Zalewski 2000, 2006) and becoming the key element of ecological biotechnologies. The biotechnology is the science on conversion of the various forms of the matter using organisms. As the consequence the major implicit goal of ecohydrolgy for IWRM is the regulation of water biota interplay from the top of the basin up to the costal zone towards the change of allocation of excess nutrients and pollutants into non available pool such as soil, sediments, wood, biomass/bioenrgy, fodder or at least from more dynamic -opportunistic (e.g. toxic cyanobacteria) to less dynamic pool within organisms (zooplankton, fish, macrophytes). Due to complexity of knowledge to be applied the development of the mathematical models for decision support systems, should be a useful tool for testing alternative scenarios and for implementation of EH methodology for sustainable water, ecosystems and societies.

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Ladislav Holko 

Hydrological characteristics of snow cover in the Western Tatra Mountains in winters 1987-2008

Holko L., 2008, Hydrological characteristics of snow cover in the Western Tatra Mountains in winters 1987-2008, Folia Geographica ser. Geographica-Physica, vol. XXXIX (39): 63-77.

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Jolanta Święchowicz 

Soil erosion on cultivated foothill slopes during extreme rainfall events in the WiŚnicz Foothills of Southern Poland

Święchowicz J., 2008, Soil erosion on cultivated foothill slopes during extreme rainfall events in the WiŚnicz Foothills of Southern Poland, Folia Geographica ser. Geographica-Physica, vol. XXXIX (39): 79-93.

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Jozef Minár 

Impact of a catastrophic wind on various types of site in the Tatra National Park

Minár J., 2008, Impact of a catastrophic wind on various types of site in the Tatra National Park, Folia Geographica ser. Geographica-Physica, vol. XXXIX (39): 95-106.

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Folia Geographica, Uniwersytet Jagielloński, Instytut Geografii i Gosopdarki Przestrzennej, ul. Gronostajowa 7, 30-387 Kraków

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