http://hdl.handle.net/11089/15931 2026-04-04T06:12:24Z http://hdl.handle.net/11089/17103 Główne problemy ochrony zasobów genowych roślin w warunkach naturalnych „in situ" Olaczek, Romuald; Ławrynowicz, Maria Conservation in situ is, for many reasons, the most important means of maintaining gene resources of wild plants. Forms of this conservation must be constantly improved and increasingly more diversified, and their effectiveness carefully supervised. The authors discuss the problem of the conservation object and aim, criteria and strategy of choise, scope of plant diversity, which should be encompassed by conservation measures, and against this background they evaluate the role of nature reserves in protection of gene resources. 1986-01-01T00:00:00Z http://hdl.handle.net/11089/16043 Ochrona zasobów genowych flory rodzimej a problemy zagospodarowania rezerwatów i parków narodowych Zaręba, Ryszard A basic task of forest reserves, apart from conservation of gene resources of the entire flora and fauna, is great care taken to preserve gene pools of native tree species. In strict reserves forest succession in its striving for climax eliminates admixed tre species. It is only in partially protected reserves that protected tree species belong to admixed ones may be preserved through application of renovating cutting down of trees. 1986-01-01T00:00:00Z http://hdl.handle.net/11089/16041 Ochrona grzybów w systemie ochrony przyrody w Polsce Skirgiełło, Alina A problem has been raised by mycologists who have been appealing for protection of fungi which have begun to disappear. The necessity of their law protection and placing certain species on the list of protected species or at least on the red list pointed out in the paper. General conclusions about the possibilities and ways of performing these tasks have been discussed. 1986-01-01T00:00:00Z http://hdl.handle.net/11089/16037 Ochrona zasobów genowych a sukcesja roślinności w rezerwatach i parkach narodowych Herbich, Jacek An unexpected and uncontrollable succession of vegetation in national parks and reserves causes the impoverishment of a gene pool of plants. This process has been observed mainly in seminatural communities and distorted natural phytocoenoses. A programme of practical endeavours should be based on a conscious management of the succession. It has to take into account the entire caryologic, ecological and sociologic variability of each species as well as to lean on a thorough study of a degree of naturalness and dynamics of the communities in which the species exist. 1986-01-01T00:00:00Z