scholarly journals Floodplain forest communities along the Mura River (NE Slovenia)

2013 ◽  
Vol 72 (1) ◽  
pp. 71-95 ◽  
Author(s):  
Petra Košir ◽  
Andraž Čarni ◽  
Aleksander Marinšek ◽  
Urban Šilc
Keyword(s):  
Main Stream ◽  
Floodplain Forests ◽  
Ecological Gradients ◽  
Response Curves ◽  
Ecological Relationships ◽  
Fidelity Measure ◽  
Species Combination ◽  
Phi Coefficient ◽  
Forest Species Composition

Abstract Ecological gradients along river banks of the Mura River influence forest species composition. On the basis of 58 relevés of floodplain forests along theMura River, the classification of vegetation plots was performed with the Pc-Ord program. The diagnostic species combination for three clusters revealed after classification was calculated by fidelity measure (phi-coefficient) and presented in an analytic table. Average Ellenberg inidicator values, stream distances and relative elevations of the relevés were passively projected onto PCA to show ecological relationships among them. Correlations of plant functional type and stream distance gradients were calculated with regression analysis. For themain edifiers response curves to the stream distance gradients weremade. The classification of the Mura floodplain forests has revealed three ecologically interpretable vegetation types: Salicetum albae (most humid and nutrient-rich sites), Fraxino- -Ulmetum allietosum ursini (ecologically intermediate sites), F.-U. quercetosum robori (the driest and the least nutrient-rich sites). Zonation of vegetation is connected to distance from the closest stream which influences species distribution through ecological gradients of moisture and nutrient. The proportion of therophytes is significantly negatively correlated with the distance from the closest stream and the proportion of neophytes is significantly negatively correlated with distance from the main stream.

scholarly journals Classification of tall-forb vegetation in the Pamir-Alai and western Tian Shan Mountains (Tajikistan and Kyrgyzstan, Middle Asia)

2020 ◽  
Vol 1 ◽  
pp. 191-217
Author(s):  
Arkadiusz Nowak ◽  
Sebastian Świerszcz ◽  
Sylwia Nowak ◽  
Marcin Nobis
Keyword(s):  
Mean Annual Temperature ◽  
Environmental Predictors ◽  
Middle Asia ◽  
Central Asian ◽  
Fidelity Measure ◽  
Tian Shan Mountains ◽  
Comprehensive Classification ◽  
Phi Coefficient ◽  
Tian Shan

Aims: To complete the syntaxonomic scheme for tall-forb vegetation of the montane and alpine belts in the Pamir-Alai and western Tian Shan Mountains in Tajikistan and Kyrgyzstan with some remarks on its environmental predictors. Study area: Middle Asia: Tajikistan and Kyrgyzstan. Methods: A total of 244 relevés were sampled in 2013–2019 using the seven-degree cover-abundance scale of the Braun-Blanquet approach. These were classified with a modified TWINSPAN algorithm with pseudospecies cut-levels 0%, 5% and 25%, and total inertia as a measure of cluster heterogeneity. Diagnostic species were identified using the phi coefficient as a fidelity measure. NMDS was used to explore the relationships between the distinguished groups. Results: Our classification revealed 19 clusters of tall-forb vegetation in Middle Asia. Among others we found forb communities typical for Tian Shan, western Pamir-Alai, forb-scree vegetation of Pamir-Alai, dry tall-forbs and typical forbs of the alpine belt. A total of eight new tall-forb associations and five communities were distinguished. The forb vegetation of Middle Asia has been assigned to the class Prangetea ulopterae Klein. The main factors differentiating the species composition of the researched vegetation are elevation, mean annual temperature, sum of annual precipitation and inclination of the slope. Conclusions: The paper presents the first insight into the comprehensive classification of the alpine forb vegetation in Middle Asia and fosters progress in explaining the relationship of boreo-temperate and Mediterranean-like (Irano-Turanian) vegetation in western Asian and central Asian subregions of the Irano-Turanian phytogeographical region. Taxonomic references: The nomenclature of the vascular plants follows generally Cherepanov (1995) and for Bromus spp. The Plant List (2020) Version 1.1. http://www.theplantlist.org/. Syntaxonomic references: The names of syntaxa are used in accordance with Ermakov (2012), Gadghiev et al. (2002) and Nowak et al. (2018). Abbreviation: NMDS = Non-metric Multidimensional Scaling.

Plant communities on rock outcrops in the northwest part of the Black Sea Caucasian coast

2009 ◽  
pp. 3-14
Author(s):  
V. B. Golub ◽  
N. A. Grechushkina ◽  
A. N. Sorokin ◽  
L. F. Nikolaychuk
Keyword(s):  
Plant Communities ◽  
Black Sea ◽  
Soil Cover ◽  
Geographical Location ◽  
The Black Sea ◽  
Rock Outcrops ◽  
Exact Test ◽  
Main Factors ◽  
Phi Coefficient

The classification of petrophytic vegetation of coastal steeps was proposed for the Northwest Cauca­sian coast of the Black Sea using the Braun-Blanquet approach. The main factors that influence the deve­lopment of vegetation in question are abrasion and denudation sea coast processes. The coastal steeps in study area are formed by carbonate flysch. The plant communities occur on rocky slopes with poorly deve­loped soil cover, fine stone chips as well as rock crevices. Nine associations and four communities without syntaxonomic rank were documented in the table and described with respect to their phyto­socio­logical affinities, ecology, and geographical location. Diagnostic species of syntaxa were established using phi-coefficient calculations of fidelity and Fisher’s exact test. In addition, the results of relevé ordination were given using the algorithm of non-metric multi­dimensional scaling (NMS) that is embedded in PC-ORD 5.0 software package.

scholarly journals Prepoznavanje i kartiranje šumskih staništa Natura 2000 u Hrvatskoj (I) – 91E0*, aluvijalne šume s crnom johom Alnus glutinosa i običnim jasenom Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae)

2019 ◽  
Vol 143 (5-6) ◽  
pp. 264-264
Author(s):  
Ivana Plišo Vusić ◽  
Irena Šapić ◽  
Joso Vukelić
Keyword(s):  
Practical Importance ◽  
Habitat Type ◽  
Natura 2000 ◽  
Alnus Glutinosa ◽  
Pedunculate Oak ◽  
Floodplain Forests ◽  
Habitat Types ◽  
Black Alder ◽  
Habitat Classification

Habitat type 91E0 in Croatia extends to approximately 80,000 ha. It contains 16 types according to the National habitat classification of Croatia (NHC). They are based on phytosociological principles and are aligned with the level of association. They are: E.1. Riparian alluvial willow forests (Salicion albae Soó 1930), poplar (Populion albae Br.-Bl. 1931) and white alder forests (Alnion incanae Pawl. in Pawl. et al. 1928) Riparian alluvial willow and poplar forests (Salicion albae, Populion albae) E.1.1.1. – Salicetum albae-fragilis Soó (1930) 1958 E.1.1.2. – Salicetum albae Isller 1926 E.1.1.3. – Salici-Populetum nigrae (R. Tx. 1931) Meyer Drees 1936 E.1.2.1. – Populetum albae (Br.-Bl.) Tchou 1947 E.1.2.2. – Populetum nigro-albae Slavnić 1952 Alluvial white alder forests (Alnion incanae) E.1.3.1. – Equiseto hyemali-Alnetum incanae M. Moor 1958 E.1.3.2. – Lamio orvalae-Alnetum incanae Dakskobler 2010 E.2. Floodplain forests of pedunculate oak, black alder and narrow-leaved ash (Alnion glutinosae Malcuit 1929, Alnion incanae) Swamp and floodplain forests of black alder narrow-leaved ash (Alnion glutinosae) E.2.1.4. – Frangulo-Alnetum glutinosae Rauš (1971) 1973 E.2.1.6. – Carici elongatae-Alnetum glutinosae W. Koch 1926 ex Tx. 1931 E.2.1.7. – Leucojo-Fraxinetum angustifoliae Glavač 1959 E.2.1.9. – Carici acutiformis-Alnetum glutinosae Scamoni 1935 Alluvial and wetland forests of black alder, elms, narrow-leaved and common ash (Alnion incanae) E.2.1.1. – Fraxino angustifoliae-Ulmetum laevis Slavnić 1952 E.2.1.2. – Carici remotae-Fraxinetum excelsioris W. Koch 1926 ex Faber 1936 E.2.1.3. – Carici brizoidis-Alnetum glutinosae Horvat 1938 E.2.1.5. – Pruno-Fraxinetum angustifoliae Glavač 1960 E.2.1.8. – Stellario nemorum-Alnetum glutinosae Lohmayer 1957 The article contains a description, area of distribution in Croatia, and diagnostic indicators for each type. For each type related types are listed, the corresponding code according to EUNIS-classification, and literature in which is described in more detail. This article has practical importance because it helps in the identification and mapping of forest habitat types, and these tasks are currently being implemented in the Croatian forestry.

scholarly journals Classification of boreal larch forests of the continental sector of Northern Eurasia (Conspectus of Syntaxa)

2019 ◽  
pp. 78-95
Author(s):  
N. B. Ermakov
Keyword(s):  
Russian Far East ◽  
Far East ◽  
Northern Eurasia ◽  
Diagnostic Features ◽  
Diagnostic Species ◽  
Larch Species ◽  
Larch Forests ◽  
Species Combination ◽  
Continental Part

The analysis of modern state of boreal larch forests in their main part of range placed in continental bioclimatic sector of Northern Eurasia (Siberia and continental part of Russian Far East) was performed. Conspectus of larch forests syntaxa was developed and it includes one class - Vaccinio myrtilli-Piceetea abietis Br.-Bl. in Braun-Blanquet et al. 1939, one subclass - Laricenea cajanderi-sibiricae subclass nova hoc loco, two orders - Ledo-Laricetalia cajanderi Ermakov in Ermakov et Alsynbayev 2004, Lathyro humilis-Laricetalia cajanderi Ermakov, Cherosov et Gogoleva 2002, six alliances - Ledo palustris-Laricion cajanderi Ermakov in Ermakov et Alsynbayev 2004, Pino sibiricae-Laricion sibiricae Ermakov in Ermakov et Alsynbayev 2004 (syn. Pino sibiricae-Laricion sibiricae Guinochet ex Dostalek et al. 1988 nom. nud., art. 2b, art. 8, Barkman et al., 1976, art. 2b, art. 8, Weber et al., 2000), Cladonio stellaris-Laricion gmelinii Anenkhonov et Chytry 1998, Empetro-Piceion obovatae Morozova in Morozova et al. 2008, Aulacomnio acuminati-Laricion cajanderi Ermakov Cherosov et Gogoleva 2002, Rhododendro daurici-Laricion gmelinii Ermakov in Krestov et al. 2009 and 30 associations. Diagnostic features of all syntaxa and their main ecological characteristics were represented. The problems of larch forests classification and syntaxa nomenclature were discussed. All diversity of boreal light-coniferous deciduous (larch) forests of continental bioclimatic sector of Northern Eurasia of the class Vaccinio-Piceetea was included in new subclass Laricenea cajanderi-sibiricae subclass nova hoc loco. Diagnostic species combination of the subclass includes predominating larch species ( Larix cajanderi, L. sibirica, L. gmelinii, L. decidua, L. olgensis ) and diagnostic species of the subordinated orders Ledo-Laricetalia cajanderi and Lathyro humilis-Laricetalia cajanderi .

Rapid Evaluation of Arid Lands (REAL)

2011 ◽  
Vol 2 (3) ◽  
pp. 32-49 ◽  
Author(s):  
Daniel P. Dugas ◽  
Michael N. DeMers ◽  
Janet C. Greenlee ◽  
Walter G. Whitford ◽  
Anna Klimaszewski-Patterson
Keyword(s):  
New Mexico ◽  
Plant Communities ◽  
Visual Inspection ◽  
Field Work ◽  
Coarse Scale ◽  
Ecological Relationships ◽  
Landsat 7 ◽  
Thematic Mapper Imagery ◽  
Complex Computer

Management of desert grasslands requires rapid, low technology, coarse assessment methods that provide a triage-like prioritization for the manager. Such approaches necessitate the ability to quickly and effectively identify coarse-scale plant communities that provide guidance for this prioritization. Complex, computer intensive digital image classification of Landsat TM data, while marginally successful, requires time, equipment, and expertise not always available in such environments. This study identifies landform boundaries in the Armendaris Ranch, New Mexico by visual inspection of Landsat-7 Enhanced Thematic Mapper imagery and topographic maps using traditional photoreconnaissance techniques. Employing predetermined hierarchical landform classifications, it was possible to map plant communities using ecological relationships that exist between the general physiographic and vegetation settings in the area and representative geomorphic landform-mapping units. The authors’ field work verified the plant community map using a random walk approach and visual inspection. This synthetic expert opinion-based approach proved successful and is repeatable in other arid rangeland settings.

Composition and environment of floodplain forests of northern Missouri

1992 ◽  
Vol 22 (9) ◽  
pp. 1343-1350 ◽  
Author(s):  
Kathleen E. Dollar ◽  
Stephen G. Pallardy ◽  
H. Gene Garrett
Keyword(s):  
Environmental Influence ◽  
Detrended Correspondence Analysis ◽  
Floodplain Forests ◽  
Vegetation Composition ◽  
Canopy Trees ◽  
Twinspan Classification ◽  
Vegetation Continuum ◽  
Vegetation Samples

Trees and their environment were studied in floodplain forests in the glaciated region of northern Missouri. Ordination of tree vegetation samples by detrended correspondence analysis indicated a primary vegetation continuum of decreasing Acersaccharinum L. and increasing Caryalaciniosa (Michx. f.) Loud with several other species associated with secondary vegetation gradients, TWINSPAN classification of tree vegetation identified three groups of plots that were dominated by A. saccharinum in varying degrees of association with other species, most importantly Populusdeltoides Bartr. and Ulmusamericana L.; two groups dominated by species of Carya and Ulmus; and two groups where dominance was more broadly distributed among lowland Quercus spp., U. americana, Aesculusglabra Willd., Fraxinuspennsylvanica Marsh., Platanusoccidentalis L., and Betulanigra L. Importance of A. saccharinum was greatest in plots where the leading dominants were young, while Quercus and Carya spp. were more common in plots with older leading dominants, suggesting that the predominant environmental influence on vegetation composition was frequency and severity of disturbance associated with flooding. Plots with younger dominant trees had lower species richness and diversity than plots with older dominants. Higher soil pH and slough location were also positively correlated with A. saccharinum importance, and Acernegundo L. was more frequent in sloughs. Analysis of overstory and understory relationships indicated that A. saccharinum is likely to remain important in the immediate future in many forests currently dominated by this species because of its abundance in subcanopy positions. Potential canopy trees of F. pennsylvanica, C. laciniosa, Caryacordiformis (Wangenh.) K. Koch, and Celtisoccidentalis L. may, in the absence of major flooding disturbance, cause long-term shifts in composition in some of these forests. While Ulmus spp. are abundant in the understory, they are unlikely to become important canopy species because of disease.

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