scholarly journals Spring fen Scheuchzerio-Caricetea nigrae in the Polish Western Carpathians – vegetation diversity in relation to soil and feeding waters

2013 ◽  
Vol 82 (2) ◽  
pp. 117-124 ◽  
Author(s):  
Anna Koczur ◽  
Paweł Nicia
Keyword(s):  
Plant Species ◽  
Mineral Content ◽  
Habitat Conditions ◽  
Vegetation Diversity ◽  
Water Parameters ◽  
Plant Associations ◽  
Species Composition Of Vegetation ◽  
Vegetation Patches ◽  
Properties Of Soil ◽  
Water Vegetation

<p>The species composition of vegetation associated with the Carpathian fens primarily depends on the type of water present and the hydrological feeding of the soils that occur there. These, in turn, shape the fertility of the fens. Those with typically formed <em>Carici-Agrostietum caninae</em> and <em>Valeriano-Caricetum flavae</em> fundamentally differ in the properties of their soils and feeding waters. These include differences in mineral content, pH, CaCO<sub>3</sub> levels, degree of peat decomposition, electrical conductivity and oxygenation of the waters that feed the fens. <em>Carici-Agrostietum caninae</em> is a homogenous plant association adapted to extreme habitat conditions. It is characterized by a very narrow range of essential soil and feeding water parameters. <em>Valeriano-Caricetum flavae</em> is a highly diverse association. Considerable diversity both in terms of plant species and vegetation structure reflects very wide ranges in the properties of soil and feeding water. Vegetation patches of transitory character were also identified. These contained plant species characteristic of both associations. The character of the vegetation depends mainly on fen soil pH and the degree of mineralization of the feeding waters. It is only these parameters that allow intermediate patches to be clearly distinguished. The degree of peat decomposition, mineral content and water oxygenation all differ for <em>Carici-Agrostietum caninae</em> and <em>Valeriano-Caricetum flavae</em>, whereas the values for intermediate patches display a range of parameters typical of both investigated associations. Consequently, vegetation present in these patches reflects to a greater or lesser extent one of the two analyzed plant associations.</p>

scholarly journals Vegetation Diversity of Screes and Taluses of The Pamir and South-Western Tian Shan in Middle Asia

2021 ◽  
Author(s):  
Arkadiusz Nowak ◽  
Sebastian Świerszcz ◽  
Sylwia Nowak ◽  
Marcin Nobis
Keyword(s):  
Species Composition ◽  
Arid Zone ◽  
Field Studies ◽  
Vegetation Diversity ◽  
Plant Associations ◽  
Middle Asia ◽  
Recent Developments ◽  
Phytosociological Relevés ◽  
High Degree ◽  
Tian Shan

AbstractThis paper presents the results of phytosociological research on scree vegetation of the Pamir and south-western Tian Shan. We collected 222 phytosociological relevés during field studies conducted in 2015–2019, applying the Braun-Blanquet approach. We identified 21 plant communities on mobile and stabilized screes of colluvial cones, aprons and fans, inhabiting mainly the montane and alpine belts in several ranges (e.g. Peter the First, Alichur, Shugnan, Shachdarian, Darvaz, Rushan, Vanch, Fergana, Kyrgyz and Terskey ranges). As a result we provide the first comprehensive hierarchical syntaxonomic synopsis of scree communities at montane and alpine elevations in the eastern Middle Asia. The collected vegetation relevés represent the majority of the variation among the phytocoenoses of gravel, pebble, cobble and rock block slides and screes in the montane and alpine belts. As a result of field studies and Twinspan analyses, nine associations were identified on screes of the Pamir and western Tian Shan. All these communities were assigned to the Sileno brahuicae-Lactucetalia orientalis Nowak et al. 2021. Additionally, within the nitrophilous compact gravel screes one subassociation of Corydalidetum kashgaricae trigonelletosum gontscharovii was distinguished. In the most arid zone two additional plant associations and one subassociation were identified in gravelly semi-deserts zone. The main factors determining the species composition of the studied associations are scree mobility, rock particle size, elevation above sea level and slope inclination. Our research revealed considerable diversity of scree habitats of montane and alpine belts what might be astonishing regarding harsh environment of this mountainous territory. However, a great number of lineages that evolved here and particularly rich species pool of this habitat in Middle Asia facilitate remarkable diversity among vegetation of taluses and screes. The distinctiveness of species composition is additionally enhanced by high degree of endemism of chasmophytic habitats in the eastern part of Middle Asia. Despite recent developments, the prominent chasmophytic vegetation of Middle Asia still needs thorough studies focused on its relationship to semi-desert, tall-forb and petrophytic communities of high mountains of the Pamir, Hindu-Kush, Kunlun and Central Tian Shan.

scholarly journals Potential of the Biomass of Plants Grown in Trace Element-Contaminated Soils under Mediterranean Climatic Conditions for Bioenergy Production

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1750
Author(s):  
María Pilar Bernal ◽  
Donatella Grippi ◽  
Rafael Clemente
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Plant Species ◽  
Contaminated Soils ◽  
Mineral Content ◽  
Plant Biomass ◽  
Climatic Conditions ◽  
Bioenergy Crops ◽  
Bioenergy Production ◽  
Digestion Methods

Phytomanagement of trace element-contaminated soils combines sustainable soil remediation with the use of plant biomass for different applications. Consequently, phytostabilization using plant species useful for bioenergy production has recently received increasing attention. However, the water requirement of most of these species is a limitation for their use under Mediterranean climatic conditions. In this work, eight plant species growing naturally in mine soils contaminated by trace elements were evaluated for their use as bioenergy crops using thermochemical (combustion) and biochemical (anaerobic digestion) methods. The higher heating values of the biomass of the plants studied were all within a narrow range (16.03–18.75 MJ kg−1), while their biochemical methane potentials ranged from 86.0 to 227.4 mL CH4 (g VS)−1. The anaerobic degradation was not influenced by the presence of trace elements in the plants, but the mineral content (mainly Na) negatively affected the potential thermal energy released by combustion (HHV). The highest annual energy yields from biogas or combustion could be obtained by the cultivation of Phragmites australis and Arundo donax, followed by Piptatherum miliaceum. Both options can be considered to be suitable final destinations for the biomass obtained in the phytostabilization of trace element-contaminated soils and may contribute to the implementation of these remediation techniques in Mediterranean areas.

scholarly journals Flora and vegetation of urbanized areas on the example of the Melekeska and Shukralinka valleys within Naberezhnye Chelny

2021 ◽  
Vol 10 (1) ◽  
pp. 97-101
Author(s):  
Dmitry Sergeevich Lyubarsky ◽  
Rimma Petrovna Tokinova
Keyword(s):  
Alien Species ◽  
Plant Species ◽  
Plant Associations ◽  
Tap Root ◽  
Adventive Flora ◽  
Middle Volga ◽  
Urbanized Areas ◽  
Common Plant ◽  
Flooded Areas ◽  
Ecological Types

The paper deals with the examination results of flora and vegetation of the Melekeska and Shukralinka valleys within Naberezhnye Chelny. The most common plant associations are identified, they are Bromopsetum variograminosum, B. varioherbosum, Festicetum variograminosum, Calamagrostetum epigeiosum; Phragmitetum australis associations are identified in the flooded areas. Anthropogenically altered areas with a high mosaicity of listed above associations communities and ephemeral weeds are widely represented. The volume and structure are shown in the areas flora. This area is subjected to constant anthropogenic load. Taxonomic and geographic analyses of flora as well as a range of vital forms and ecological types are submitted. 120 plant species from 94 genera and 40 families have been identified. The position of the leading families is like that in regional flora, Asteraceae, Poaceae, and Fabaceae are leading. Perennial polycarpic grasses especially long-rhizome (21,7%) and tap-root (15,0%) dominate among biomorphs (69,2%). Species with wide ranges are of paramount importance, they are Euro-West Asian (30,9%), Eurasian (27,5%), Holarctic (11,7%) and the percentage of alien species is 8,5%. Ruderal (36,7%), meadow (17,5%) and humid meadow (11,7%) species are leading in the ecological-coenotic spectrum. The adventive flora is represented by 16 species and it is briefly analyzed. Valley floras of some other Middle Volga rivers have been compared.

scholarly journals Harmful plant species in meadow-pastures associations on Stara Planina mountain

2006 ◽  
Vol 22 (3-4) ◽  
pp. 129-135
Author(s):  
Zorica Nesic ◽  
Zorica Tomic ◽  
M. Zujovic ◽  
Dragana Ruzic-Muslic
Keyword(s):  
Plant Species ◽  
Useful Plants ◽  
Mountain Regions ◽  
Important Resource ◽  
Livestock Feeds ◽  
Plant Associations ◽  
Food Value

Meadows and pastures are important resource of livestock feeds in mountain regions and all plant species on them don?t have same value as livestock feeds. From aspect of food value for livestock all species fundamentally can distribute as useful and harmful plants. In paper are represent two plant associations of Stara Planina Mountain Festucetum vallesiacae and Agrostietum vulgarae. In this associations, besides useful plants, are defined, harmful plant species, there present in associations and all of it in aim of ascertainment measures for their removal or reduction from sward. Group of harmful plants is segmented on three subcategory: bed and worthless plants, harmful and poorly poisons and very poisons plants. Association Festucetum vallesiacae count 75 plant species and of that, category bed and worthless plants belong 26 plants or 34.7 g kg-1, category harmful and poorly poisons belong 8 or 10.6 g kg-1, while category very poisons plants default. Association Agrostietum vulgare count 47 plant species and of that category bed and worthless plants belong 17 or 36.17 g kg-1, category harmful and poorly poisons just one plant or 2.13 g kg-1 and category very poisons plants default too.

scholarly journals The occurence of rare and protected plant species on the peat bog near Lake Bikcze (Łęczyńsko-Włodawskie Lakeland)

2012 ◽  
Vol 61 (2) ◽  
pp. 113-120 ◽  
Author(s):  
Magdalena Pogorzelec ◽  
Barbara Banach
Keyword(s):  
Plant Species ◽  
Abiotic Factors ◽  
Habitat Preferences ◽  
Peat Bog ◽  
Habitat Conditions ◽  
Drosera Rotundifolia ◽  
Western Shore ◽  
Betula Humilis ◽  
Menyanthes Trifoliata

This paper presents the results of a pilot field study, conducted in July 2007, designed to make floristic evaluation of the peat bog area adjacent to the western shore of Lake Bikcze (Łęczyńsko-Włodawskie Lakeland). The main aim of the study was to confirm the occurrence of populations of rare and legally protected plant species in this area and to identify, on a preliminary basis, habitat conditions in their stands. The occurrence of populations of the following strictly protected plant species: <i>Betula humilis</i>, <i>Salix lapponum</i>, <i>Salix myrtilloides</i>, <i>Carex limosa</i>, <i>Drosera intermedia</i>, <i>Drosera rotundifolia</i>, <i>Dactylorhiza incarnata</i>; and partially protected species: <i>Menyanthes trifoliata</i>, has been confirmed in the studied peat bog. Both an investigation of abiotic factors, conducted <i>in situ</i>, and an analysis of the species composition of the flora in terms of habitat preferences of particular groups of taxa have shown that the described rare plant species find suitable conditions for their growth and development in the studied peat bog.

Vegetation diversity of the two Dinaric karstic rivers in Bosnia and Herzegovina

Biologia ◽  
2016 ◽  
Vol 71 (7) ◽  
Author(s):  
Anđelka Lasić ◽  
Nenad Jasprica
Keyword(s):  
Plant Communities ◽  
Bosnia And Herzegovina ◽  
Vegetation Diversity ◽  
Plant Associations ◽  
Phytosociological Relevés

AbstractPlant communities were studied along two oligotrophic karstic rivers – Trebižat and Lištica – from 2007 to 2009. Based on 93 phytosociological relevés, using Braun–Blanquet methods, a total of 25 plant associations were recognised in the rivers and nearby surveyed area. These associations have been subordinated to 11 alliances, eight orders and six classes:

scholarly journals The effects of physical-chemical water parameters on the Nymphaeion alliance development in northwestern Serbia

2014 ◽  
Vol 83 (2) ◽  
pp. 103-111 ◽  
Author(s):  
Dejana Džigurski ◽  
Branka Ljevnaić-Mašić ◽  
Ljiljana Nikolić
Keyword(s):  
Comparative Analysis ◽  
Total Phosphorus ◽  
Phosphorus Content ◽  
The Other ◽  
Habitat Conditions ◽  
Water Parameters ◽  
Physical Chemical ◽  
Canal Network ◽  
Nitrate And Nitrite ◽  
Chemical Water

<em>Nymphaeion</em> alliance vegetation is dominant floating-leaved vegetation in the Danube–Tisza–Danube hydrosystem in northwestern Serbia and comprises <em>Nymphaeetum albae</em>, <em>Nymphaeetum albo-luteae</em>, <em>Nymphoidetum peltatae</em> and <em>Trapetum natantis</em> associations. Comparative analysis of physical-chemical water parameters on localities where these – in most parts of Europe endangered and vulnerable stands – develop showed that most phytocenoses are associated with specific habitat conditions. Of the analyzed water properties, the factors that cause <em>Nymphaeion</em> alliance phytocenoses differentiation are primarily pH, alkalinity and COD-MnO<sub>4</sub>. Formation of the <em>Nymphaeetum albae</em> stands is significantly associated with the highest values of pH, COD-MnO<sub>4</sub> and alkalinity, and the lowest nitrate, nitrite, dissolved and the total phosphorus content values, in comparison to the other studied associations. <em>Nymphoidetum peltatae</em> stands develop in waters characterized by the lowest pH and COD-MnO<sub>4</sub>, low alkalinity, and the highest nitrate and nitrite values in relation to the other analyzed phytocenoses. <em>Trapetum natantis</em> stands, on the other hand, prefer the warmer sections of the canal network, neutral pH, and the highest values of BOD<sub>5</sub>, dissolved and total phosphorus. Habitat conditions in which <em>Nymphaeetum albo-luteae</em> stands develop are of the widest range in comparison to other investigated phytocenoses.

scholarly journals Confirmed occurrence of the native plant species Eleocharis ovata (Cypera­ceae) in Lithuania

Botanica ◽  
2021 ◽  
pp. 44-52
Author(s):  
Zigmantas Gudžinskas ◽  
Laurynas Taura
Keyword(s):  
Plant Species ◽  
Rare Plant ◽  
Native Plant ◽  
Habitat Conditions ◽  
Native Plant Species ◽  
Field Investigations ◽  
Long Time ◽  
Potential Habitats ◽  
Iucn Criteria ◽  
Single Locality

Information on the occurrence of Eleocharis ovata (Cyperaceae) in Lithuania for a long time had been based on misidentified specimens only. During the studies on the flora of South Lithuania in 2020, we discovered this species in Varėna district on the shores of Lake Pabezninkai. We performed field investigations on the distribution, size of population and habitats of E. ovata from August to October 2020 on the shores of Lake Pabezninkai and, searching for this species, surveyed potential habitats on the shores of eight other lakes in South Lithuania. A total of 63 individuals of E. ovata were found on the shores of Lake Pabezninkai, and they were widely dispersed on the northern and south-western shores of the lake. Most of the registered individuals of E. ovata were found growing on wet sand and mud in the communities of the Isoëto-Nanojuncetea class. Solitary individuals were also found in communities of the Phragmito-Magnocaricetea class. Assessment of E. ovata according to the IUCN criteria revealed that this species, currently occurring at a single locality in Lithuania, should be classified as critically endangered (CR). Conservation of E. ovata and other rare plant species recorded on the shores of Lake Pabezninkai should be organised by maintaining favourable habitat conditions.

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