@article{oai:soar-ir.repo.nii.ac.jp:00016435,
 author = {Jewson,  D.H. and Zlinszky,  J.},
 journal = {信州大学理学部付属諏訪臨湖実験所報告},
 month = {Mar},
 note = {The problems of restoring eutrophic, shallow lakes are discussed using examples from three lakes with different surface areas, e.g., L.Neagh (N. Ireland), L.Balaton (Hungary) and L.Suwa (Japan). The water quality in each lake has undergone marked deteriorations during this century and all of them were considered hypertrophic by the late 1970's. Improved sewage treatment was installed and although they all showed some initial recovery (max. chl a down by 25 - 33% by 1984), since then further improvement has been much slower. Two of the main reasons for this are internal recycling and the in-wash of nutrients from non-point sources. In considering the restoration plans for the three lakes, it is important to include inshore areas. Each of these lakes has been lowered and their annual water level fluctuations controlled. To highlight the major ecological problems associated with such changes, L.Neagh, which has a largely 'undeveloped' shoreline but where rare post-glacial habitats are endangered, is compared to L.Balaton, now one of Central Europe's most popular resorts., Article, 信州大学理学部付属諏訪臨湖実験所報告 7: 9-19(1991)},
 pages = {9--19},
 title = {THE PROBLEMS OF RESTORING LARGE, SHALLOW LAKES.},
 volume = {7},
 year = {1991}
}