The forest cover evolution of the Ipel river headwaters catchment
2000
Hroncek, J. (Technicka Univerzita, Zvolen (Slovak Republic). Katedra Lesnych Stavieb a Melioracii)
The forest evolution of the Ipel river headwaters catchment from the 13th century up till now is evaluated. The originally totally forested territory had been gradually reduced until forests took up only 29% of the area in the mid-20th century while the headwaters of other Slovak rivers had a forest cover of at least 59%. The work reports on the forest revitalization process in the above headwaters area as far as the flow profile above the Malinec water reservoir (Sp=54.24 square km). The forest cover of the area doubled, from 28.62% to 61.59%, between 1961 and 1997, i.e. in 36 years. An intensive forestation of large areas has also caused a change in the tree species composition of stands (favouring conifers) as well as an unsuitably distributed age structure of the forest stands. Also, the mistakes made during forest establishment in the past (use of larch and pine seedlings of wrong provenience and the establishment of spruce monocultures) are highlighted, and the currently tackled problems as a result of these mistakes (an increasing percentage of incidental felling) are given. The qualitative restoration for the benefit of the forest stability conservation is the headwaters area of the per river is undoubtedly necessary
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