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ŠUMARSKI LIST 13/2005 str. 15     <-- 15 -->        PDF

PRESENTATION AT THE INTERNATIONAL SYMPOSIUM
Šumarski list SUPLF.MENT (2005), 7-16


FIFTY YEARS OF FORESTRY HYDRO-PEDOLOGICAL RESEARCH
WITHIN THE FOREST BASINS OF MOUNTAIN WATER RUNS


Zdenek VICHA*


SUMMARY: After a period offiftyyears, measurements of hydrological and
climatic data in two experimental basins of Cervik (CE) and Mala Rdztoka
(MR) were completed on 31 October 2003. The goal of research was to evaluate
the relationship between rainfall and outflow as elements of water balance in
small forested watersheds. According to the experiment, the relationship between
precipitation and outflows in small forested mountain watersheds depends
more on natural elements than on methods of forest management. In
terms of infiltration and retention quality, forest soils are very important elements
in a watershed hydrological regime. We would like to present efficient
suggestions for forest management obtained from long-lasting research, which
can be related to the rotation cycle of a forest, for example.


INTRODUCTION


Measuring, evaluation and modelling of the precipimany
other experiments worldwide. Measuring and
tation-run-off relationship in the forested mountain baevaluation
of the precipitation - run-off relationship in
sins has a long tradition in many countries. In Czechosthe
small forested basins, and the impact on individual
lovakia forestry-hydrological measuring has been initiacomponents
of the forest management is the primary
ted already in 1928, by Mr. V ä 1 e k, within the basins of goal of the experiment. Mainly long-term period of the
Kychovä and Zdechovka, Javornik Mts. At the begin research had made possible to understand better the ining
of fifties of the last century, the interest in the manater-
relations, and their application in forest development
gement measures, supporting forest water function, was (e.g. rotation period). However, the problem is too comincreased.
Thanks to Marana and Zeleny the new expeplicated,
and unambiguous conclusions can be hardly
rimental objects have been installed in Moravskoslezske expected. Measuring has to go on and the data are to be
Beskydy (Moravian-Silesian part of the Beskydy Moundeeply
analysed. We need better, in more detail, understains).
It is the basin of Mala Räztoka (MR - 2.08 km2) tand which elements and their changes and relations, are
and Červik (CE - 1.85 km2). Research, initiated there in the most important for the precipitation-run-off process
November 1, 1954, is still on going, the time exceeding in forest stands.


EXPERIMENTAL BASINS OF CE AND MR


The experimental basin of CE is situated in so calresearch
purpose, the method of the pair basins was
led Zadni hory (Back-side Mts.) of Moravskoslezske used. After 1965, part A was fastly reforested by the
Beskydy, over the water reservoir Šance, at the altitude strip cutting, part B was left as a control, with no intenof
640 - 960 m over the sea level. The basin is 100 % tional felling, and natural regeneration.
forested, in the term of calibrating 85 % of conifers Experimental basin of MR is situated on the NW
was represented. The basin is naturally divided in two slopes of Beskydy, at the altitude of 602-1084 m over
parts, called CA (0.88 km2) and CB (0.84 km2). For the sea level. In 1953 - 1965 it was calibrated without


stand regeneration, since 1966 the stand was regenera


ted by the strip felling. During the regeneration in MR,


*
Ing. Zdenek Vicha, Forestry and Game Management Research beech was replaced by spruce, and the differences in Institute, Jilovište - Strnady, office Frydek - Mistck,
run-off were recorded. Detailed characteristics of the


Nadražni2811,CZ-738 01,
e-mail frydek.vulhm@mybox.cz two basins are presented in the Table.