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T. Wilgat et al.

technical works is thus the same as that induced by changes of soil management. The overlapping of these causes makes it difficult to assess them separately. However, the fact that after building the drainage system of the Wieprz-Krzna canal, symptoms of land drying were commonly manifested and relatively fast, allows us to conclude that hydrotechnical work played a predominating role.

RECREATIONAL UTILIZATION OF LAKES

The Łęczna-Włodawa Lakę Region was a neglected region to the middle of the 1950’s. Poorly-developed communication networks (Fig. 5) practically hindered entry to its interior. Its natural and landscape attributes were described for the first time in 1956 (Wilgat 1956), promoting this region for geographical excursions. The earliest tourism started on Biale-Wlodawa Lakę, situated in the eastern part of the Region, which tourists began to visit after 1958. The land around it was sold to state institutions for recreational purposes in 1961.

That year was the beginning of building permanent facilities in the Lakę Region area. As building the Wieprz-Krzna canal reąuired the construction of new roads, the late 50’s and early 60’s saw new communication tracks built, facilitating penetration of the western and central part of the Region. By 1963 further permanent recreational facilities had been established on Rogoźno and Białka lakes so that at that time 1400 tourists or visitors could be accommodated for the night, and weekend recreation predominated. In 1964, 145,000 persons enjoyed recreation in the summer season (July, August)

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