National Repository of Grey Literature 15 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Biotic threats to garden monuments: algae, cyanobacteria and invasive plant species
Pergl, Jan ; Perglová, Irena ; Albrechtová, J. ; Antl, Tomáš ; Abarenkov, K. ; Baldrian, Petr ; Cihlářová, L. ; Klečka, Jan ; Kohout, Petr ; Kvasničková, Jana ; Maršálek, Blahoslav ; Maršálková, Eliška ; Pejchal, Miloš ; Petružálková, M. ; Petřík, Petr ; Pyšek, Petr ; Sádlo, Jiří ; Štefl, Lukáš ; Tedersoo, L. ; Větrovský, T. ; Vlk, Lukáš ; Vojík, Martin ; Vosátka, Miroslav ; Zezulka, Štěpán
Chateau, city parks and gardens are perceived as harmonious parts of the landscape. Unfortunately, even these areas have to face various threats, and they can be a threat to the surrounding environment. The exhibition /catalogue presents a look at the organisms that threaten parks. These threats cover unwelcomed invaders covering invasive plants and small microorganisms in the soil, on facades, statues or in water. On the other hand, some species that are intentionally brought to the parks can be risky not only the gardens themselves but also their surroundings.
Fulltext: Download fulltextPDF
Management of native and alien plants in garden monuments
Sádlo, Jiří ; Pergl, Jan ; Pejchal, Miloš ; Perglová, Irena ; Petřík, Petr ; Štefl, Lukáš ; Vojík, Martin
The work covers garden monuments in context of spontaneous nature and the occurrence of non-native plant species. We present the management approaches for selected groups of invasive species. The text was written in the context of fields other than monument care and ecology and nature conservatioin. We offer not a simplified methodological guide with a prepared solution of standard situations. We prefer to formulate the text at a greater distance and show the problems themselves, we offer a way to think about them. The approaches are accompanied with examples. In the text, we show local solutions using case studies.
Plný tet: Download fulltextPDF
Water in landscape and revitalisations
Petřík, Petr ; Salzmann, K. ; Hejzlar, Josef ; Pithart, D. ; Fanta, J.
How to return water to the landscape and keep it there? One of the strategic objectives and priorities of water protection should be the revitalization of the river and valley network, accompanied by a change of the approach to river network management.
Long-term dynamics of Ledum palustre - testing the distribution model with paleoecological data
Radoměřský, Tomáš ; Kuneš, Petr (advisor) ; Petřík, Petr (referee)
On the territory of the Czech Switzerland National Park took place during the Holocene significant changes in vegetation cover to the form is most enrolled medium Holocene climatic optimum when broadleaf deciduous forests expanded into Central Europe. These transformations are caused by climatic changes. However, it started the process of soil acidification to this day that caused the other variations of the vegetation composition, even the extinction a variety of species especially in sandstone areas. In addition, in the last few centuries the human impact is graduating, which more or less of the original forests changes due to agricultural and economic reasons to breed-specific and the same-aged plantations which supports the already declining species diversity and relative abundance of the undergrowth species. This work focuses on a single species, evergreen undergrowth shrub Ledum palustre which is characterized by strong demands on its habitat and indicates the specific habitat type. It grows on the upper north-facing edges of rocks with plenty of light and humidity. At these locations stores organic material thanks the favourable hydrology. This makes possible to study the use of pollen and macroremains the paleoecology of the species. On the basis of recent occurrences and the relationships...
Forest vegetation in the Bohemian Karst between traditional management and modern conservation
Veverková, Alina ; Hédl, Radim (advisor) ; Petřík, Petr (referee)
Forest understory vegetation in lowland woodlands is coming through systematical changes, which are documented from many regions. Abandonment of traditional coppicing management, nitrogen deposition and effect of high game densities in some regions are considered to be the main key drivers. Changes of seminatural woodland in protected area of Bohemian Karst were studied in this research. The abandonment of traditional management is probably the biggest environmental change in this area. Original data, semi-permanent plots with phytosociological relevés, were surveyed shortly after the last coppicing in the half of twentieth century. These plots were now re-visited. Partial task was to evaluate how important relocation accuracy is. Discovered changes have similar trends as in other lowland woodlands. After abandonment of coppicing, site conditions changed towards more shade and nutrient rich sites. Vegetation shifted to species assemblages of late succession dominated by shade-adapted and nutrient-demanding species. Slight decrease in gama-diversity, increase in alpha-diversity and decrease of beta-diversity indicated taxonomic homogenization was recorded. Re-visiting of semi-permanent plots was evaluated as appropriate tool for this type of research. Spatial heterogenity is partly affecting temporal change,...
Restoration of Botič River basement - the key to solving floods in Pruhonice Park
Petřík, Petr
Project of restoration of Botič River Basement is presented as an output of the Platform for Sustainable Landscape Management which will be implemented in landscape management plans.
Landscape management - lessons from the landscape development
Petřík, Petr ; Fanta, J.
The landscape of the Czech Republic is unable to sufficiently compensate for extreme weather events such as droughts and floods within the current climate change. Damage is done to human health, property and key resources (water, soil and biodiversity), and costs are rising in agriculture and forestry. Sustainable soil management is in the public interest, and the fundamental question is how to encourage land users to farm the landscape while respecting its fine-grained mosaic and in accordance with the European Landscape Convention. For this purpose, we have set up the so-called Platform for Sustainable Landscape Management, in which research institutes even outside the Academy of Sciences are increasingly involved. The main objectives of the platform are the sharing of information, assistance in developing strategic advice and education on sustainable landscape.

National Repository of Grey Literature : 15 records found   1 - 10next  jump to record:
See also: similar author names
1 Petrík, P.
3 Petrík, Peter
3 Petřík, Patrik
2 Petřík, Pavel
Interested in being notified about new results for this query?
Subscribe to the RSS feed.