National Repository of Grey Literature 8 records found  Search took 0.00 seconds. 
Pollenanalytical record of the climatic and vegetation changes in the palsas of the boreal zone of Europe
Jankovská, Vlasta
Palaeoreconstruction of the climatic and vegetation changes reconstructed from the pollenanalytical record in palsas.
Using of the tree-ring analysis for dating of large scale dieback of dwarf pine (Pinus mugo) in the Giant Mountains
Kyncl, Tomáš ; Wild, Jan
Abrupt growth depressions and high proportion of missing tree-rings was observed on dwarf pine shrub (Pinus mugo) in Krkonoše, Mts. These symptoms were ascribed to strong defoliation of shrub caused by insect outbreaks and confirmed by observed decrease in shrub cover using historical aerial photographs. The study proved the using of dendrochronological methods for detection of historical inasect outbreaks in dwarf pine shrub stands.
Study of dynamics of natural dwarf pine-grassland mosaic using of spatial explicit
Wild, Jan ; Kyncl, Tomáš
Long-term dynamics of dwarf pine-grassland mosaic in subalpine belt of the Giant Mountains and processes leading to its stable co-existence are studied using computer based spatial explicit model. First results indicate ability of long-term co-existence of dwarf pine-grassland mosaic even without presence of disturbances of dwarf pine stands.
Disturbances in precipitation-runoff relation caused by insufficient transpiration in vegetation season
Šír, Miloslav ; Tesař, Miroslav ; Lichner, Ľ. ; Syrovátka, O.
Catchment rainfall-runoff relationships are employed in this study to identify the changes in catchment behaviour which may indicate the impact climatic forces.
Water and thermal regime of mature forest, clearing and dead forest in the vegetation season
Tesař, Miroslav ; Šír, Miloslav ; Zelenková, E. ; Lichner, Ľ.
The paper focused on comparison of the water and thermal regime of three experimental stands located in the Sumava Mts.
Plant control of hydrological cycle in headwater regions
Šír, Miloslav ; Tesař, Miroslav
Headwater regions of the Czech mountains and piedmonts were originally covered with the climax vegetation, mainly mixed and deciduous forests, actually with dominanting antropogenous spruce monocultures and meadows.
Climate change and plant transpiration
Šír, Miloslav ; Tesař, Miroslav ; Lichner, Ľ. ; Syrovátka, O.
The article shows how the plant transpiration cools the boundary level of the atmosphere. In a summer day, when the heat input is 5 to 6 kWh/m2 per day, in the mountainous and submontane areas of the Czech Republic (600 to 1400 m a.s.l.) the plant transpiration decreases: (1) maximum temperature of plant cover from 47 to 25 degrees C, (2) maximum temperature of boundary level of the atmos-phere from 29 to 21 degrees C, (3) maximum temperature of the soil in the depth of 15 cm from 15 to 8 degrees C. The cooling caused by plant transpiration substantially af-fects the energy balance of the land surface. Insufficient transpiration caused an increment of thermal energy of about 23
Soil water regime in the Krkonose Mts. arctic-alpine tundra region : assessment and modeling
Tesař, Miroslav
The Subproject 1 final report contains research results covering the final fifth year of project solution. The results and conclusions from previous partial reports and published papers are included.

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