-
Chapter and Conference Paper
Analysis of the Number of Valid Peterson’s Syllogisms
This publication aims to continue the study of fuzzy Peterson’s logical syllogisms with fuzzy intermediate quantifiers. The main idea of this article is not to formally or semantically prove the validity of sy...
-
Chapter and Conference Paper
Modelling of Fuzzy Peterson’s Syllogisms Related to Graded Peterson’s Cube of Opposition
In this article, we continue to study fuzzy Peterson’s logical syllogisms. We will focus on new forms of fuzzy intermediate quantifiers that form a graded Peterson’s cube of opposition. The main goal will be t...
-
Article
Different nutrient use strategies of expansive grasses Calamagrostis epigejos and Arrhenatherum elatius
Enhanced nitrogen (N) levels accelerate expansion of Calamagrostis epigejos and Arrhenatherum elatius, highly aggressive expanders displacing original dry acidophilous grassland vegetation in the Podyjí National ...
-
Article
The role of Athyrium distentifolium in reduction of soil acidification and base cation losses due to acid deposition in a deforested mountain area
The tall fern (Athyrium distentifolium Tausch ex Opiz) forms large stands in many deforested sites in Central European mountains. In the present study, we want to demonstrate that the effect of ferns on the leach...
-
Article
Effect of nitrogen addition and drought on above-ground biomass of expanding tall grasses Calamagrostis epigejos and Arrhenatherum elatius
Tall expansive grasses act as serious weeds since they spread intensively and are a important threat to biodiversity of various plant communities. A field experiment was set up based on three sets of paired pl...
-
Article
Effect of Manipulated Rainfall on Root Production and Plant Belowground Dry Mass of Different Grassland Ecosystems
A field experiment was established to quantify the effects of different amounts of rainfall on root growth and dry mass of belowground plant parts in three types of grassland ecosystems. Mountain (Nardus grasslan...
-
Article
Soil nutrient heterogeneity and competitive ability of three grass species (Festuca ovina, Arrhenatherum elatius and Calamagrostis epigejos) in experimental conditions
We studied the effects of differences in root growth and nutrient pool on the competitive ability of Festuca ovina (short grass), Arrhenatherum elatius and Calamagrostis epigejos (tall grasses) grown in monocultu...
-
Article
Live and dead underground plant biomass in a natural meadow hydrosere
In seven meadow stands of natural hydroseres the average total underground biomass ranged from 1.6 to 3.7 kg. m−2. The highest percentages of live roots (46–60%) and live underground biomass (1.40–1.61 kg. m−2) w...
-
Article
Biomass partitioning in twoCalamagrostis villosa stands on deforested sites
Calamagrostis villosa stands occurring in areas deforested by air-pollution impact in the Moravian-Silesian Beskydy Mountains were characterized by a high dry mass of total underground biomass (3...
-
Article
Living and dead belowground biomass and its distribution in some savanna communities in Cuba
Fiala K. etHerrera R. (1988): Living and dead belowground biomass and its distribution in some savanna communities in Cuba.—Folia Geobot. Phytotax., Praha, 23: 225–237.— The paper sums up the first results obtai...
-
Article
Live and dead roots—their mass ratio in several grassland stands
The mass ratio of live to dead roots (L/D root ratio) in grassland stands treated with cutting, mineral fertilization and recultivation varied between 0.48 and 4.19. The highest values of this ratio, i.e., a s...
-
Article
Bookreviews
-
Article
Bookreviews
-
Article
Estimation of annual increment of underground plant biomass in a grassland community (Polygalo-Nardetum)
The paper sums up the first knowledge obtained from the study of seasonal changes in the growth and decomposition rate of underground plant biomass in a grassland community (Polygalo-Nardetum) in the highland Čes...
-
Article
Underground organs ofPhragmites communis, their growth, biomass and net production
The present paper sums up the knowledge obtained from the study of growth periodicity in the underground organs ofPhragmites communis Trin. and from the analyses of differentPhragmites sta...
-
Article
Direkte Bestimmung von Bor im Pflanzenmaterial nach der Kurkuminmethode
A direct curcumin method for determination of boron, developed by Grinstead and Snider was used for determination of this element in plant material.
-
Article
Seasonal changes in the growth of clones ofTypha latifolia L. in natural conditions
The paper describes in quantitative terms the vegetative spreading of clones ofTypha latifolia in natural conditions. The highest rates of the formation of new shoots during the growing season were recorded in th...
