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Journal articles on the topic 'Ecological vegetation classes'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Dubyna, D. V., Т. P. Dziuba, S. M. Iemelianova, and P. A. Tymoshenko. "Syntaxonomy and ecological differentiation of the pioneer vegetation of Ukraine. 2. Helichryso-Crucianelletea maritimae, Festucetea vaginatae, Koelerio-Corynephoretea canescentis classes." Biosystems Diversity 28, no. 3 (August 9, 2020): 298–319. http://dx.doi.org/10.15421/012039.

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Pioneer psammophytic vegetation is usually developed on wind-drift sandy substrates such as arenas, spits, beaches, river terraces, and this vegetation occupies significant areas in all three natural zones of Ukraine. The Koelerio-Corynephoretea canescentis class was represented by 13 associations, 3 alliances and 1 order; Festucetea vaginatae class by 22 associations, 2 alliances and 1 order; Helichryso-Crucianelletea maritimae by 10 associations, 4 alliances and 1 order. The results of cluster analysis and synoptic tables of the classes are presented. 9 alliances are briefly described. Leadi

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2

Nuijten, Rik J. G., Nicholas C. Coops, Catherine Watson, and Dustin Theberge. "Monitoring the Structure of Regenerating Vegetation Using Drone-Based Digital Aerial Photogrammetry." Remote Sensing 13, no. 10 (May 16, 2021): 1942. http://dx.doi.org/10.3390/rs13101942.

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Measures of vegetation structure are often key within ecological restoration monitoring programs because a change in structure is rapidly identifiable, measurements are straightforward, and structure is often a good surrogate for species composition. This paper investigates the use of drone-based digital aerial photogrammetry (DAP) for the characterization of the structure of regenerating vegetation as well as the ability to inform restoration programs through spatial arrangement assessment. We used cluster analysis on five DAP-derived metrics to classify vegetation structure into seven classe

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3

Ribeiro, Fernanda F., Dar A. Roberts, Laura L. Hess, Frank W. Davis, Kelly K. Caylor, and Gabriel Antunes Daldegan. "Geographic Object-Based Image Analysis Framework for Mapping Vegetation Physiognomic Types at Fine Scales in Neotropical Savannas." Remote Sensing 12, no. 11 (May 27, 2020): 1721. http://dx.doi.org/10.3390/rs12111721.

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Regional maps of vegetation structure are necessary for delineating species habitats and for supporting conservation and ecological analyses. A systematic approach that can discriminate a wide range of meaningful and detailed vegetation classes is still lacking for neotropical savannas. Detailed vegetation mapping of savannas is challenged by seasonal vegetation dynamics and substantial heterogeneity in vegetation structure and composition, but fine spatial resolution imagery (<10 m) can improve map accuracy in these heterogeneous landscapes. Traditional pixel-based classification methods h

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4

Dietrich, Michael, and Christoph Scheidegger. "Frequency, Diversity and Ecological Strategies of Epiphytic Lichens in the Swiss Central Plateau and the Pre-Alps." Lichenologist 29, no. 3 (May 1997): 237–58. http://dx.doi.org/10.1006/lich.1996.0074.

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AbstractTo identify representative quantitative criteria for the creation of a future Red List of epiphytic lichens, 849 trees in 132 long-term ecological observation plots in the Swiss Central Plateau and the Pre-Alps were surveyed by standard sampling. Based on the trees, frequency data of the lichen taxa observed are described by the log series model, indicating the controlling effect of few ecological factors. Based on the plots, four classes of scarcity, each comprising 25% of the species, were established. As a contribution to the development of a national, representative survey of liche

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5

Cianfaglione, Kevin. "Plant Landscape and Models of French Atlantic Estuarine Systems. Extended Summary of the Doctoral Thesis." Transylvanian Review of Systematical and Ecological Research 23, no. 1 (March 1, 2021): 15–36. http://dx.doi.org/10.2478/trser-2021-0002.

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Abstract The present study proposes a theoretical common model of environmental gradients and functioning of vegetation and Plant Landscape of the French Atlantic estuarine systems. This model offers a basis to improve classification and ecological studies of estuarine systems, and to helps the monitoring and assessment of land uses, land forms transformation and human impacts, thanks to the develop of a spatio-temporal predictive model based on actual and potential vegetation following a dynamico-catenal approach. In eight selected estuaries, fieldworks was undertook for a total of 98,315 ha

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Rapinel, Sébastien, and Laurence Hubert-Moy. "One-Class Classification of Natural Vegetation Using Remote Sensing: A Review." Remote Sensing 13, no. 10 (May 12, 2021): 1892. http://dx.doi.org/10.3390/rs13101892.

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Advances in remote sensing (RS) technology in recent years have increased the interest in including RS data into one-class classifiers (OCCs). However, this integration is complex given the interdisciplinary issues involved. In this context, this review highlights the advances and current challenges in integrating RS data into OCCs to map vegetation classes. A systematic review was performed for the period 2013–2020. A total of 136 articles were analyzed based on 11 topics and 30 attributes that address the ecological issues, properties of RS data, and the tools and parameters used to classify

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Budzhak, Vasyl'. "Syntaxonomic scheme of grassy vegetation of the upper Prut and Siret river basins." Biolohichni systemy 11, no. 2 (December 26, 2019): 174–99. http://dx.doi.org/10.31861/biosystems2019.02.174.

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This is the first time that ecological-floristic classification scheme of grassy vegetation of the upper Prut and Siret basins within Ukraine was set up based on the analysis of field research and literature resources. The foundations for syntaxonomic scheme of vegetation was database of geobotanical descriptions «Vegetation of Bukovina», which was created on the Department of botany, forestry, garden and park management in the shell of TURBOVEG. This database contains more than 5000 geobotanical descriptions made in accordance with standardized approach. There was used cluster analysis based

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8

Kovalenko, I. N. "Potential and realized ecological niches of herb and shrub layer in forest ecosystems of the north-eastern Ukraine." Ecology and Noospherology 26, no. 3-4 (June 12, 2015): 14–20. http://dx.doi.org/10.15421/031516.

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The species composition of herb and shrub layer of the major forest ecosystems of the north-eastern Ukraine has been analyzed at the level of vegetation classes, and individual ecological optimum of the main species of herbs and shrubs has been determined in order to predict the dynamics of their populations in the region. Literature data and results of our own studies for the period of 2000–2010 have shown that in accordance with the ecofloristic classification in the region, 6 classes of forest vegetation can be distinguished, such as: Querceto-Fagetea Br.-Bl. (1937), Vaccinio-Piceetea Br.-B

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9

Dubyna, D. V., T. P. Dziuba, L. P. Vakarenko, A. A. Ennan, H. M. Shykhaleeva, and H. M. Kiriushkina. "Features of ecological differentiation of halophytic, steppe and petrophytic vegetation in the valley of the Liman Kuyalnik (Odesa Oblast)." Biosystems Diversity 27, no. 3 (October 23, 2019): 205–13. http://dx.doi.org/10.15421/011928.

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Assessment of key environmental factors that influence vegetation distribution and formation of plant communities is one of the most important challenges in modern phytocenology. Nowadays, several bioindication systems are applied to determine ecological specificity of plant communities and to establish the leading factors for their environmental differentiation. The system most widely used in Europe, that of H. Ellenberg, contains a numerical score on 6 ecological factors. On the example of vegetation of the valley of the Liman Kuyalnik, Y. Didukh developed the synphytoindication method based

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Brooks, Bjorn-Gustaf J., Danny C. Lee, Lars Y. Pomara, and William W. Hargrove. "Monitoring Broadscale Vegetational Diversity and Change across North American Landscapes Using Land Surface Phenology." Forests 11, no. 6 (May 27, 2020): 606. http://dx.doi.org/10.3390/f11060606.

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We describe a polar coordinate transformation of vegetation index profiles which permits a broad-scale comparison of location-specific phenological variability influenced by climate, topography, land use, and other factors. We apply statistical data reduction techniques to identify fundamental dimensions of phenological variability and to classify phenological types with intuitive ecological interpretation. Remote sensing-based land surface phenology can reveal ecologically meaningful vegetational diversity and dynamics across broad landscapes. Land surface phenology is inherently complex at r

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11

Golovanova, Ya M. "The new associations of sinanthropic vegetation of classes Artemisietea vulgaris and Galio-Urticetea in the Bashkortostan Republic." Vegetation of Russia, no. 30 (2017): 35–54. http://dx.doi.org/10.31111/vegrus/2017.30.35.

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The most widespread types of vegetation of the urbanized territories are coenosis of synanthropic and, in narrower sense, ruderal plant species. Ruderal communities are developing on garbage and dumps (Reymers, 1991), but presently this term is used much more widely, and is applied also to vegetation in various habitats arising under man impact. For example, W. Holzner (1982) includes abandoned fields and fellings in this type. So, the concepts of synanthropic and ruderal vegetation are rather close now. Synanthropic and ruderal communities are mostly found in the urban locations. The study of

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Viciani, Daniele, Marisa Vidali, Daniela Gigante, Rossano Bolpagni, Mariacristina Villani, Alicia Teresa Rosario Acosta, Michele Adorni, et al. "A first checklist of the alien-dominated vegetation in Italy." Plant Sociology 57, no. 1 (June 12, 2020): 29–54. http://dx.doi.org/10.3897/pls2020571/04.

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This study provides a first step toward the knowledge of the alien-dominated and co-dominated plant communities present in Italy. The first ever checklist of the alien phytocoenoses described or reported in literature for the Italian territory has been compiled, produced by data-mining in national and local thematic literature. The resulting vegetation-type draft-list has been checked in the light of the most recent syntaxonomic documentation and updated with regards to syntaxonomy and nomenclature, with special reference to the frame proposed in the Italian Vegetation Prodrome. The list inclu

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Falco, Gennaro, and Kristen M. Waring. "Community Classification of Piñon-Juniper Vegetation in the Four Corners Region, USA." Forest Science 66, no. 6 (September 10, 2020): 687–99. http://dx.doi.org/10.1093/forsci/fxaa024.

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Abstract Piñon-juniper is one of the most common vegetation types in the Four Corners states of the western United States (Arizona, Colorado, New Mexico, and Utah). Because of its high degree of community heterogeneity across the landscape, development of a more detailed and statistically supported classification system for piñon-juniper has been requested by regional land managers. We used a USDA Forest Service Forest Inventory and Analysis (FIA) data set from the Four Corners states to develop a statistics-based classification system for piñon-juniper vegetation. Cluster analysis was used to

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Hutorowicz, Andrzej, Marcin Białowąs, Bronisław Długoszewski, and Lech Doroszczyk. "An attempt to assess the ecological status of a lake based on historical and current maps of submerged vegetation." Archives of Polish Fisheries 25, no. 1 (March 28, 2017): 33–42. http://dx.doi.org/10.1515/aopf-2017-0004.

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Abstract The possibility of doing a back assessment of the ecological status of a lake based on archival bathymetric maps indicating areas overgrown with rushes and aquatic vegetation was verified. This assessment was assumed to be in accordance with that performed with the official Polish macrophyte-based method for lake assessment (Ecological State Macrophyte Index, ESMI). The study was conducted on Lake Dobrąg located in the Warmian-Masurian Voivodeship (surface area - 108 ha, maximum depth - 27.9 m, mean depth - 11.6 m). It included the hydroacoustic distribution of submerged macrophytes a

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15

Maccherini, Simona, Elisa Santi, and Dino Torri. "Germinable Soil Seed Bank in Biancana Badlands." Diversity 11, no. 12 (November 23, 2019): 223. http://dx.doi.org/10.3390/d11120223.

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Seed banks are important for understanding vegetation dynamics and habitat regeneration potential. Biancana badlands are vanishing landscapes where recurring and non-recurring management has been advocated to restore vegetation. Here, we investigated germinable seed bank structure and composition of a biancana badland in central Italy and evaluated the relationship between the standing vegetation and soil seed bank. We identified four land cover classes in five biancana badlands of Tuscany (central Italy) and collected data from 132 vegetation plots and 660 soil cores. We recorded 117 species

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16

Kotova, T. V., та G. N. Ogureeva. "Biogeographiс approaches to ecological mapping". Geobotanical mapping, № 2007 (2007): 23–31. http://dx.doi.org/10.31111/geobotmap/2007.23.

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The means for improving of the information capacity of ecological maps have been discussed with special accent on zoocomponent usually underestimated. The concept of ecoregion has been applicated in the course of work on the new map "Bioms of Russia" (S 1 : 8 000 000). Three levels of mapping units has been proposed: 1) zono- and orobioms, 2) ecoregions, 3) regional bioms. The first one is based upon the dominance of one or several zonal vegetation types, zoocomponent being characterized by the share of different vertebrate classes in species diversity of animal population. The concept of ecor

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17

Slezák, Michal, Richard Hrivnák, and Anna Petrášová. "Syntaxonomy and Ecology of Black Alder Vegetation in the Southern Part of Central Slovakia." Hacquetia 10, no. 2 (January 1, 2011): 119–36. http://dx.doi.org/10.2478/v10028-011-0006-6.

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Syntaxonomy and Ecology of Black Alder Vegetation in the Southern Part of Central Slovakia The study presents phytosociological and ecological data from azonal black alder forest sites in the southern part of central Slovakia. A data set of 29 relevés was collected by authors in vegetation season 2010 following the standard Braun-Blanquet approach. Numerical classification was performed to delimit the main vegetation types, while statistical analyses were applied to explain the vegetation-environmental relationships. Three associations within two classes were distinguished using a TWINSPAN alg

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18

Tseiкova, N. L., та L. M. Abramova. "NEW SYNTAXONS OF THE CITY OF NALCHIK (КABARDINO-BALKARIA)". Bulletin of the State Nikitsky Botanical Gardens 1, № 138 (14 травня 2021): 64–70. http://dx.doi.org/10.36305/0513-1634-2021-138-64-70.

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The results of the ecological and floristic classification of some mderal communities of the city of Nalchik are presented. The community of Cichorium intybus (Artemisietea vulgaris) that consist of two classes of mderal vegetation, Artemisietea vulgaris and Stellarietea mediae, and the class of meadow vegetation Molinio-Arrhenatheretea, is described. The association Conyzo canadensis-Lactucetum serriolae Lohmeyer in Oberdorfer 1957 is described. Communities of associations, including those under the name Erigeronto Lactucetum serriolae Lohmeyer in Oberdorfer 1957, are noted not only in settl

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19

Dubyna, D. V., and T. P. Dziuba. "Syntaxonomical diversity of the Dnieper mouth. I. Classes Scorzonero—Juncetea gerardii Golub et al. 2001, Festuco-Puccinellietea Soó 1968, Molinio-Arrhenatheretea R. Tx. 1937." Vegetation of Russia, no. 10 (2007): 7–22. http://dx.doi.org/10.31111/vegrus/2007.10.7.

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The revealed syntaxonomic diversity of meadow vegetation of the Dnieper mouth area comprises 12 associations subordinated to 7 alliances, 5 orders, and 3 classes: Scorzonero—Juncetea gerardii, Festuco-Puccinellietea and Molinio-Arrhenatheretea. For each class, the phytosociological tables are presented together with the summarizing vegetation syntaxa prodromus and the ecological-phytocoenological portraits of the associations described. Meadow communities of the study area have been proved to bear peculiar features of their structure and composition. The spatial distribution of communities is

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Touboul, Jonathan David, Ann Carla Staver, and Simon Asher Levin. "On the complex dynamics of savanna landscapes." Proceedings of the National Academy of Sciences 115, no. 7 (January 29, 2018): E1336—E1345. http://dx.doi.org/10.1073/pnas.1712356115.

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Simple mathematical models can exhibit rich and complex behaviors. Prototypical examples of these drawn from biology and other disciplines have provided insights that extend well beyond the situations that inspired them. Here, we explore a set of simple, yet realistic, models for savanna–forest vegetation dynamics based on minimal ecological assumptions. These models are aimed at understanding how vegetation interacts with both climate (a primary global determinant of vegetation structure) and feedbacks with chronic disturbances from fire. The model includes three plant functional types—grasse

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Arepieva, L. A. "Communities with Ambrosia artemisiifolia L. in the Kursk Region." Vegetation of Russia, no. 36 (December 12, 2019): 41–58. http://dx.doi.org/10.31111/vegrus/2019.36.41.

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The purpose of this study is to characterize plant communities with Ambrosia artemisiifolia in the Kursk Region. The work is based on 32 relevés made by the author in the city of Kursk and few district centers of the Kursk Region in 2009–2018. Some information about natural conditions of the Kursk Region is given in Table 1. Classification is carried out according to Braun-Blanquet approach. The data were treated by IBIS 7.2 software package (Zverev, 2007). The names of the higher syntaxa follow to «Vegetation of Europe…» (Mucina et al., 2016). Synoptic tables include only species with a cons

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Golovanov, Ya M., S. M. Yamalov, and L. M. Abramova. "Vegetation of Salavat town (Bashkortostan Republic). V. Native and semi-native herb vegetation (classes Molinio-Arrhenatheretea, Festuco-Brometea and Thero-Salicornietea)." Vegetation of Russia, no. 24 (2014): 13–37. http://dx.doi.org/10.31111/vegrus/2014.24.13.

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The big cities are ecosystems where the most of the planet population is concentrated. The urban environment is characterized by essential changes of substances circulation, energy flow and the ecological conditions important for vegetation growing (Vladimirov, 1986; Odum, 1986; Burda, 1991; Goryshina, 1991; Berezutski, 2007 etc.). At present, urbanized territories of the world occupy only 5% of the entire land, and about 3 billion people live there., Increase of urbanization forces us to study the vegetation cover of the cities. Within city line, two main variants of vegetation communities ar

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Franklin, Scott B., Michael Scheibout, and Jozef Šibik. "Vegetation Classification Exercise for the Pawnee National Grasslands, USA." Vegetation Classification and Survey 1 (November 16, 2020): 123–37. http://dx.doi.org/10.3897/vcs/2020/38629.

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Aims: Vegetation classifications are useful for a variety of management purposes as well as scientific exploration. Local classifications are common throughout the United States but only recently have been integrated into a national classification system, which is now expected for local classifications. Study Area: The Pawnee National Grasslands (PNG) in northeastern Colorado, USA, has not been classified using plot data, and is thus a gap on the baseline knowledge of the PNG plant communities that hinders impact assessment of various anthropogenic activities. Methods: Here, we use 128 plots t

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Johnson, J. Bradley, and David A. Steingraeber. "The vegetation and ecological gradients of calcareous mires in the South Park valley, Colorado." Canadian Journal of Botany 81, no. 3 (March 1, 2003): 201–19. http://dx.doi.org/10.1139/b03-017.

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The vegetation, environment, and ecological gradients present on three calcareous mires in the South Park valley, Park County, Colorado, were investigated. Vegetation was classified into four habitat classes, nine subclasses, and twelve species associations using two-way species indicator analysis (TWINSPAN). Detrended correspondence analysis (DCA) was used to ordinate vegetation samples along two axes representing the three predominant ecological gradients: water table height, miremargin to expanse, and region. Canonical correspondence analysis (CCA) was used to directly relate local environm

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Deall, G. B., G. K. Theron, and R. H. Westfall. "The vegetation ecology of the Eastern Transvaal Escarpment in the Sabie area. 2. Floristic classification." Bothalia 19, no. 1 (October 18, 1989): 69–89. http://dx.doi.org/10.4102/abc.v19i1.945.

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The indigenous vegetation of the Eastern Transvaal Escarpment in the Sabie area is classified with the aid of the PHYTOTAB program package. Four ecological-formation classes (efc) based on floristics. physiognomy and climate correspond to four data subsets. Plant communities in each efc are defined by means of 46 differential species-groups distributed amongst forest, thicket, woodland, shrubland and grassland structural types. Environmental correlation is facilitated by means of 21 habitat types.

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Hüppe, Cecilia Frauke, Anja Schmitz, Bettina Tonn, and Johannes Isselstein. "The Role of Socio-Economic Determinants of Horse Farms for Grassland Management, Vegetation Composition and Ecological Value." Sustainability 12, no. 24 (December 19, 2020): 10641. http://dx.doi.org/10.3390/su122410641.

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Socio-economic context is increasingly seen as a decisive factor for sustainable agricultural land use. The high prevalence of part-time farming and frequent lack of formal agricultural education within the equine sector are often seen as reasons why horse-grazed pastures do not fulfill their biodiversity potential. In spite of the substantial variability within horse farming, little is known about the relationship of socio-economic determinants with vegetation characteristics of horse-grazed grasslands. We surveyed 122 horse farms in Germany, classifying them into four socio-economic classes

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Agra, Janaina Uchôa Medeiros, Raphael Ligeiro, Diego Rodrigues Macedo, Robert Mason Hughes, and Marcos Callisto. "Ecoregions and stream types help us understand ecological variability in Neotropical reference streams." Marine and Freshwater Research 70, no. 4 (2019): 594. http://dx.doi.org/10.1071/mf18309.

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Stream site classification is a fundamental step in defining reference conditions for freshwater bioassessments globally. Landscape regionalisation and stream typology approaches have both been used to determine classes that reduce inherent environmental variation and to show classes with ecological meaning. We evaluated the applicability of ecoregion and stream typology approaches in a river basin located between the Neotropical Savanna and the Atlantic Forest biomes in south-eastern Brazil. We delimited two ecoregions and assessed whether stream types within each ecoregion would further redu

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Cullum, Carola, Gary Brierley, George LW Perry, and Ed TF Witkowski. "Landscape archetypes for ecological classification and mapping." Progress in Physical Geography: Earth and Environment 41, no. 1 (October 24, 2016): 95–123. http://dx.doi.org/10.1177/0309133316671103.

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We propose the use of archetypes as a way of moving between conceptual framings, empirical observations and the dichotomous classification rules upon which maps are based. An archetype is a conceptualisation of an entire category or class of objects. Archetypes can be framed as abstract exemplars of classes, conceptual models linking form and process and/or tacit mental models similar to those used by field scientists to identify and describe landforms, soils and/or units of vegetation. Archetypes can be existing taxonomic or landscape units or may involve new combinations of landscape attribu

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White, JD, KC Ryan, CC Key, and SW Running. "Remote Sensing of Forest Fire Severity and Vegetation Recovery." International Journal of Wildland Fire 6, no. 3 (1996): 125. http://dx.doi.org/10.1071/wf9960125.

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Burned forested areas have patterns of varying burn severity as a consequence of various topographic, vegetation, and meteorological factors. These patterns are detected and mapped using satellite data. Other ecological information can be abstracted from satellite data regarding rates of recovery of vegetation foliage and variation of burn severity on different vegetation types. Middle infrared wavelengths are useful for burn severity mapping because the land cover changes associated with burning increase reflectance in this part of the electromagnetic spectrum. Simple stratification of Landsa

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Lavrinenko, I. A. "Typology of territorial units of vegetation for the purposes of large-scale mapping (the Kolguev Island as an example)." Geobotanical mapping, no. 2015 (2015): 94–119. http://dx.doi.org/10.31111/geobotmap/2015.94.

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A typological scheme of territorial units of vegetation (TUV) developed on the basis of the large-scale map of theKolguev Island is presented. Four basic rank typological units (division, class, group and type) define TUV positions in the hierarchical system of vegetation cover. The concepts of diagnostic syntaxon and combination of diagnostic syntaxa that occur exclusively or primarily within these typological units are introduced. Prodromus of the Kolguev Island vegetation consists of 42 syntaxa (association / subassociation / type of community). 38 types of TUV from 22 groups (8 homogeneous

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Asner, Gregory P., David E. Knapp, Amanda N. Cooper, Mercedes M. C. Bustamante, and Lydia P. Olander. "Ecosystem Structure throughout the Brazilian Amazon from Landsat Observations and Automated Spectral Unmixing." Earth Interactions 9, no. 7 (June 1, 2005): 1–31. http://dx.doi.org/10.1175/ei134.1.

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Abstract The Brazilian Amazon forest and cerrado savanna encompasses a region of enormous ecological, climatic, and land-use variation. Satellite remote sensing is the only tractable means to measure the biophysical attributes of vegetation throughout this region, but coarse-resolution sensors cannot resolve the details of forest structure and land-cover change deemed critical to many land-use, ecological, and conservation-oriented studies. The Carnegie Landsat Analysis System (CLAS) was developed for studies of forest and savanna structural attributes using widely available Landsat Enhanced T

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Acic, Svetlana, U. Silc, S. Vrbnicanin, Svjetlana Cupac, G. Topisirovic, N. Stavretovic, and Zora Dajic-Stevanovic. "Grassland communities of Stol mountain (eastern Serbia ): Vegetation and environment al relationships." Archives of Biological Sciences 65, no. 1 (2013): 211–27. http://dx.doi.org/10.2298/abs1301211a.

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The systematic survey of grassland communities was performed on Mt. Stol (eastern Serbia). The main aims of the research were to: (1) determine grassland vegetation types of the researched area; (2) correlate the impacts of the soil and environmental conditions on the occurrence of certain plant communities, and (3) comment on the conservational value of the grasslands in the researched area. The data set included 60 phytosociological relev?s of grasslands recorded between 2001 and 2004. The main environmental gradients of species composition were analyzed by Detrended Correspondence Analysis

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Didukh, Ya P., Yu V. Rozenblit, I. I. Chorney, V. V. Budzhak, and A. I. Tokariuk. "Vegetation of the Dniester Canyon and assessment of its adaptive potential." Ukrainian Botanical Journal 78, no. 4 (August 30, 2021): 282–96. http://dx.doi.org/10.15407/ukrbotj78.04.282.

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Syntaxonomy of the natural vegetation of the Dniester Canyon, including 20 classes, 30 orders, 44 alliances, and 71 associations, is presented. The natural vegetation of the canyon is formed by communities of the classes Carpino-Fagetea sylvaticae, Quercetea pubescentis, Quercetea robori-petraeae, Alno glutinosae-Populetea albae, Crataego-Prunetea, Festuco-Brometea, Trifolio-Geranietea sanguine, Molinio-Arrhenatheretea, Sedo-Scleranthetea, Phragmito-Magnocaricetea, Bolboschoenetea maritimi, and Isoëto-Nanojuncetea. Grassland vegetation is characterized by the highest syntaxonomic diversity. Qu

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Sá, Iêdo Bezerra, Tony Jarbas Ferreira Cunha, Tatiana Ayako Taura, and Marcos Antônio Drumond. "Mapeamento da desertificação da Região de Desenvolvimento Sertão do São Francisco com base na cobertura vegetal e nas classes de solos (Desertification mapping of “Sertão” San Francisco Development Region based on the vegetation and the soil classes)." Revista Brasileira de Geografia Física 8 (December 3, 2015): 510. http://dx.doi.org/10.26848/rbgf.v8.0.p510-524.

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Na região Semiárida do Estado de Pernambuco existe grande diversidade na paisagem natural, onde a vegetação, os solos e o clima geram uma multiplicidade de situações que concorrem para formação de diferentes ecossistemas e habitats com grande potencial ecológico e ambiental. Nesta região, a vegetação é caracterizada por diferentes fisionomias, variando de áreas com formações arbustivas, com cobertura do solo muito escassa e quase ausente, a formações arbóreas com níveis de cobertura bastante densas. De modo análogo, nesta região ocorre uma grande variedade de solos, que por suas característica

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Shoshany, Maxim. "Satellite remote sensing of natural Mediterranean vegetation: a review within an ecological context." Progress in Physical Geography: Earth and Environment 24, no. 2 (June 2000): 153–78. http://dx.doi.org/10.1177/030913330002400201.

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Mediterrranean regions are characterized by high spatiotemporal heterogeneity of vegetation patterns. Understanding the dynamic nature of these environments requires detailed data for wide regions regarding changes in their phyto-ecology, biomass and productivity. This article assesses the current status of satellite remote sensing in this field of application. Mapping the five main life-forms (physiognomic classes) in Mediterranean regions (forests, woodlands, scrub, dwarf shrubs and herbaceous growth) has attracted major attention in recent years. Methodologies developed for this purpose are

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Sokolova, T. A. "Large-scale geobotanical map of the Tuzla Spit and Tuzla Island (the Kerch Strait)." Geobotanical mapping, no. 2019 (2019): 57–67. http://dx.doi.org/10.31111/geobotmap/2019.57.

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During an ecological expertise the vegetation of Tuzla Spit and Tuzla Island, located in the middle part of the Kerch Strait (Fig. 1), was studied. This area is unique in terms of biological diversity and a presence of rare species (Ermolaeva et al., 2018). The study is based on 150 geobotanical relevés. Field data, topographic maps, and high-resolution satellite images were used in the vegetation mapping. The total area of the study is 383 hectares. There are the following hierarchical levels in the legend to the vegetation map: types of vegetation and classes of associations. A mapping unit

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STOFER, Silvia, Ariel BERGAMINI, Gregorio ARAGÓN, Palmira CARVALHO, Brian J. COPPINS, Simon DAVEY, Michael DIETRICH, et al. "Species richness of lichen functional groups in relation to land use intensity." Lichenologist 38, no. 4 (July 2006): 331–53. http://dx.doi.org/10.1017/s0024282906006207.

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Changing land use has a major impact on lichen diversity. This study attempts to identify patterns or trends of lichen functional groups along a land use gradient, ranging from natural forests to open agricultural landscape. In eight countries, covering six main European biogeographic regions, lichen vegetation was assessed according to a standardized scheme. Data on reproductive, vegetative and ecological traits was compiled and relative species richness for all classes of all traits calculated. Relationships between the land use gradient and relative species richness of trait classes were an

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Goia, Irina, and Adrian Oprea. "Particularities of the Aquatic Vegetation from “Iron Gates” Natura 2000 Site (Banat, Romania)." Transylvanian Review of Systematical and Ecological Research 16, no. 3 (December 1, 2014): 87–114. http://dx.doi.org/10.1515/trser-2015-0035.

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Abstract The paper presents the results of investigations on the aquatic vegetation, along the Romanian bank of the Danube River, in the area of Porţile de Fier (“Iron Gates”; Mehedinţi and Caraş-Severin counties), a Natura 2000 site. Twenty-three plant communities were identified from Lemnetea minoris and Potametea pectinati classes. The survey led to the identification of some newly described phytocoenotaxons in this protected area. All the plant communities in this paper are documented by phytosociologic tables, being accompanied by coenotaxonomic, phytogeographical, ecological and social s

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Dubyna, D. V., T. P. Dziuba, S. M. Iemelianova, and L. М. Makhynia. "Syntaxonomy and ecological differentiation of the pioneer vegetation of Ukraine. 1. Classes: Cakiletea maritimae, Ammophiletea, Crithmo-Staticetea, Crypsietea aculeatae, Therosalicornietea." Biosystems Diversity 28, no. 1 (February 12, 2020): 68–80. http://dx.doi.org/10.15421/012011.

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Pioneer plant communities grow on newly-formed ecotopes of coastal and partially continental areas, on patches that have dried after the surface water flooding. They are affected by sea tides, wind-induced effect, salinity, denudation, accumulation and sharp changes in soil humidity. To these factors are added chemical and biological pollution, as well as anthropogenic pressure. Due to these reasons, such plant communities have a specific floristic composition, structure, functional regime and resilience mechanisms, which are different from coenoses of more stable habitats. On the basis of the

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Afrin, Sadia, Anil Gupta, Babak Farjad, M. Ahmed, Gopal Achari, and Quazi K. Hassan. "Development of Land-Use/Land-Cover Maps Using Landsat-8 and MODIS Data, and Their Integration for Hydro-Ecological Applications." Sensors 19, no. 22 (November 9, 2019): 4891. http://dx.doi.org/10.3390/s19224891.

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The Athabasca River watershed plays a dominant role in both the economy and the environment in Alberta, Canada. Natural and anthropogenic factors rapidly changed the landscape of the watershed in recent decades. The dynamic of such changes in the landscape characteristics of the watershed calls for a comprehensive and up-to-date land-use and land-cover (LULC) map, which could serve different user-groups and purposes. The aim of the study herein was to delineate a 2016 LULC map of the Athabasca River watershed using Landsat-8 Operational Land Imager (OLI) images, Moderate Resolution Imaging Spe

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Baskin, Carol C., and Jerry M. Baskin. "Germinating Seeds of Wildflowers, an Ecological Perspective." HortTechnology 14, no. 4 (January 2004): 467–73. http://dx.doi.org/10.21273/horttech.14.4.0467.

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Five kinds (classes) of seed dormancy are known: physiological (PD), morphological (MD), morphophysiological (MPD), physical (PY), and combinational (PY+PD). PD is the most common class in the major vegetation zones of the world followed by PY, MPD, MD, and (PY+PD). Each class is described, and a dichotomous key to identify them is presented. The environmental conditions required to break PD, MD, MPD, PY, and (PY + PD) and promote germination are discussed. To help determine which treatments to use for breaking dormancy in seeds with water-permeable seedcoats (PD, MD, MPD), a “move-along exper

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Kholod, S. S. "Classificаtion of Wrangel Island vegetation". Vegetation of Russia, № 11 (2007): 3–135. http://dx.doi.org/10.31111/vegrus/2007.11.3.

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The syntaxonomical study of Wrangel Island carried out in accordance to Braun-Blanquet approach is proposed. As a result 29 associations, 1 type of community, 18 subassociations, 8 variants and 5 facies are distinguished. A series of associations belong to 13 alliances, 12 orders and 9 classes which were described earlier (some of them are provisional). The procedure of classification have showed some methodical difficulties. One of them is the revealing of belonging syntaxa to any class, a lot of which were described in more south regions. As a result much of diagnostic species of these

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Mirkin, B. M., V. B. Martynenko, and L. G. Naumova. "(A review) Victor V. Chepinoga. Flora and vegetation of waterbodies in Baikal Siberia. Irkutsk, 2015. 468 p." Vegetation of Russia, no. 29 (2016): 117–20. http://dx.doi.org/10.31111/vegrus/2016.29.117.

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The monograph presents the results of long-term studies of flora and vegetation of waterbodies (with standing and flowing water) in Baikal Siberia (Irkutsk Oblast, Republic of Buryatia. Zabaikalskii Krai). The hydrophilous flora of the region includes 380 vascular plant species. The distribution of plants is characterized by their occurrence in 46 units (regions) of the regional division. Taxonomical, geographical, karyolofloristic, ecological and biological analyses for the regional hydrophilous flora is performed. Vegetation diversity of waterbodies is described in tradition of floristic cla

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Carpa, Rahela, Vasile-Daniel Gherman, Mihail Dr�gan-Bularda, Marilena Motoc, and Elena Ana Pauncu. "Physico-chemical and Bacteriological Characterization of the Soil Types from Various Altitudinal Vegetation Zones in Par�ng Mountains." Revista de Chimie 59, no. 9 (October 9, 2008): 1057–61. http://dx.doi.org/10.37358/rc.08.9.1968.

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There were collected soil samples from various vegetation sites and altitudinal vegetation zones of the Par�ng Mountains, from the South-Eastern part of the Hunedoara county, and they were analysed from the physico-chemical and bacteriological point of view. The chemical analyses consisted in the appreciation of the reaction of the soil (pH), in establishing the humus and total nitrogen content. According to these analyses, the soil is generally acid and presents normal nitrogen content. In order to establish the soil type and classes existing in the Par�ng Mountain, the chemical analyses were

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Zengel, Scott, Nicolle Rutherford, Brittany Bernik, Zachary Nixon, and Jacqueline Michel. "Salt Marsh Remediation and the Deepwater Horizon Oil Spill, the Role of Planting in Vegetation and Macroinvertebrate Recovery." International Oil Spill Conference Proceedings 2014, no. 1 (May 1, 2014): 1985–99. http://dx.doi.org/10.7901/2169-3358-2014.1.1985.

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ABSTRACT The Deepwater Horizon oil spill resulted in persistent heavy oiling in salt marshes, particularly in northern Barataria Bay, Louisiana. Oiling conditions and several ecological variables were compared among reference plots and three types of heavily oiled plots located along a continuous shoreline area in northern Barataria Bay: oiled control plots, mechanical treatment plots, and mechanical treatment plots coupled with vegetation planting (Spartina alterniflora). Data were collected more than three years following initial oiling and two years following cleanup treatments and planting

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Johnston, RM, and MM Barson. "Remote sensing of Australian wetlands: An evaluation of Landsat TM data for inventory and classification." Marine and Freshwater Research 44, no. 2 (1993): 235. http://dx.doi.org/10.1071/mf9930235.

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This study aimed to develop simple remote-sensing techniques suitable for mapping and monitoring wetlands, using Landsat TM imagery of inland wetland sites in Victoria and New South Wales. A range of classification methods was examined in attempts to map the location and extent of wetlands and their vegetation types. Multi-temporal imagery (winter/spring and summer) was used to display seasonal variability in water regime and vegetation status. Simple density slicing of the mid-infrared band (TM5) from imagery taken during wet conditions was useful for mapping the location and extent of inunda

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Bélanger, Louis, Sylvain Paquette, Steve Morel, Jean Bégin, Philippe Meek, Lucie Bertrand, Patrick Beauchesne, Serge Lemay, and Marius Pineau. "Indices de qualité de station du sapin baumier dans le sous-domaine écologique de la sapinière à bouleau blanc humide." Forestry Chronicle 71, no. 3 (June 1, 1995): 317–25. http://dx.doi.org/10.5558/tfc71317-3.

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Balsam fir (Abies balsamea (L) Mill.) site indices (height at 50 years at stump height) were estimated for the principal ecological types of the boreal and humid balsam fir-white birch climatic subdomain in central Québec. Ecological types consisted of units homogeneous as to their geomorphological deposit, their drainage class and vegetation dynamic. Mean site index varied from 15.9 m for rich mesic seepage sites to 9.4 m for very thin and poorly drained sites. To the three productivity classes generally used for boreal balsam fir stands in Québec (Linteau 1955), our results demonstrated the

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Watson, Simon J., Rick S. Taylor, Lisa Spence-Bailey, Dale G. Nimmo, Sally Kenny, Luke T. Kelly, Angie Haslem, et al. "The Mallee fire and biodiversity project." Proceedings of the Royal Society of Victoria 124, no. 1 (2012): 38. http://dx.doi.org/10.1071/rs12038.

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Fire is a widespread disturbance and an important ecological process in semi-arid mallee ecosystems of southern Australia. Understanding the effects of fire on plants and animals is a key challenge for the conservation and management of biodiversity in this ecosystem. Commencing in 2006, the Mallee Fire and Biodiversity Project is investigating the effects of fire on a range of taxa (vascular plants, invertebrates, reptiles, birds and mammals), with a focus on the influence of the properties of ‘fire mosaics’ on biota. A ‘whole of landscape’ design was employed, in which the flora and fauna we

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Torres-Olave, M. E., L. C. Bravo-Peña, L. C. Alatorre-Cejudo, M. I. Uc-Campos, and M. O. González-León. "Factores biogeográficos y cambios de uso del suelo (2009-2013) en el nicho de "Trogon elegans ambiguus" y "Euptilotis neoxenus" en Chihuahua, México." Cuadernos de Investigación Geográfica 44, no. 2 (June 29, 2018): 763. http://dx.doi.org/10.18172/cig.3295.

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Few studies have addressed the current state of the Trogon elegans ambiguus and Euptilotis neoxenus ecological niches, as well as the vegetation dynamics and land use changes where these birds live. This work estimates the potential distribution of Trogon elegans ambiguus and Euptilotis neoxenus in Chihuahua and studies the land use changes in two time periods (2009 and 2015). The MaxEnt software was used to model the ecological niches in Chihuahua, Mexico. The maps of changes in land use and plant cover were reclassified and the classes were homogenized. A crosstab analysis was used to compar

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Hutorowicz, Andrzej. "A Retrospective Ecological Status Assessment of the Lakes Based on Historical and Current Maps of Submerged Vegetation—A Case Study from Five Stratified Lakes in Poland." Water 12, no. 9 (September 18, 2020): 2607. http://dx.doi.org/10.3390/w12092607.

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This article presents and tests a new method for the retrospective assessment of ecological status assessment of the lakes in accordance with the Ecological State Macophyte Index (ESMI), which is formally used in biological monitoring in Poland. The proposed method is based on three metrics, the Z colonization index, the average maximum depth of lake vegetation Cmax, and the Secchi disk depth. Mathematical functions of ecological class were developed on the basis of the mean values of these three indicators in summer for different ecological status classes in 88 stratified lakes in northern Po

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