Zobrazeno 1 - 10
of 38
pro vyhledávání: '"S. Hejný"'
The impetus for this volume was the 2nd International Wetlands Conference which was held in June, 1984 at Trebon, Czechoslovakia. An overview of the worlds wetlands was one of the themes of the conference and it was decided that a useful follow-up wo
Autor:
S. Hejný
Publikováno v:
Aquatic Botany. 42:195-197
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c24ef38fd484825466c680552f0d8cf
https://doi.org/10.1016/0304-3770(92)90008-7
https://doi.org/10.1016/0304-3770(92)90008-7
Autor:
S. Hejný, K. Kopecký
Publikováno v:
Vegetatio. 29:17-20
A new method in classification of anthropogenic plant communities is discussed. Three kinds of basic categories of communities have been distinguished and defined: (1) basal communities, (2) derivate communities, and (3) cenologically saturated commu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a508802c8c104bcf346830b6f37eaaff
https://doi.org/10.1007/bf02390892
https://doi.org/10.1007/bf02390892
Autor:
S. Hejný
Publikováno v:
Ecological Studies ISBN: 9783642668401
The ultimate goal of all fishpond management is the production of the largest possible amount of fish meat and, recently, also of duck or goose meat in some fishponds. Other purposes of fishpond management are secondary or complementary to its princi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1277f161f5a26039cc9b1b9ac9975592
https://doi.org/10.1007/978-3-642-66838-8_27
https://doi.org/10.1007/978-3-642-66838-8_27
Publikováno v:
Ecological Studies ISBN: 9783642668401
In modern pond management, amelioration is mainly performed in two ways: a. the mechanical way, using heavy machinery b. the biotechnical way, employing duck- and goose-farming Both types were introduced more or less simultaneously in the early sixti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52bf4bf0aa592c921637af747c65edd8
https://doi.org/10.1007/978-3-642-66838-8_29
https://doi.org/10.1007/978-3-642-66838-8_29
Publikováno v:
Ecological Studies ISBN: 9783642668401
Within a given set of climatic, edaphic and hydrochemical conditions, the water level and its changes in time determine the character and structural variation in both space and time of the plant as well as other biotic communities in a fishpond. Fish
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a52d548be69d0f57184254f311e61b2b
https://doi.org/10.1007/978-3-642-66838-8_3
https://doi.org/10.1007/978-3-642-66838-8_3
Autor:
S. Hejný
Publikováno v:
Chorological phenomena in plant communities ISBN: 9789401089319
The aquatic macrophyte communities of southern Bohemian fishponds were analyzed during 35 years (1941–1976). From 61 vegetational units 26 communities may be characterized as being well adapted to modern fishpond management, 4 units are on their wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6814c8102c1a9ea18ca3e63132c3a0a0
https://doi.org/10.1007/978-94-009-5508-0_26
https://doi.org/10.1007/978-94-009-5508-0_26
Publikováno v:
Ecological Studies ISBN: 9783642668401
During the history of mankind, people of all periods and races have attempted to draw clear-cut boundaries between land and water in the landscapes they inhabited. A balanced mosaic of terrestrial and aquatic ecosystems has always been regarded as an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0561ea197bb4eeac5bf1d46ec286475e
https://doi.org/10.1007/978-3-642-66838-8_1
https://doi.org/10.1007/978-3-642-66838-8_1
Publikováno v:
Ecological Studies ISBN: 9783642668401
The two regions in which our investigations were carried out, the Třeboň basin in South Bohemia and the Lednice region in South Moravia, differ markedly in physiographic and ecological conditions. The geographical location of the two regions is evi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85e4635e51950a32272dc507f623d9c8
https://doi.org/10.1007/978-3-642-66838-8_2
https://doi.org/10.1007/978-3-642-66838-8_2