Search

Your search keyword '"forest phytocoenoses"' showing total 7 results
Start Over Descriptor "forest phytocoenoses"
7 results on '"forest phytocoenoses"'

1. Assessment of Phytomass and Carbon Stock in the Ecosystems of the Central Forest Steppe of the East European Plain: Integrated Approach of Terrestrial Environmental Monitoring and Remote Sensing with Unmanned Aerial Vehicles.

Author

Slavskiy, Vasiliy, Matveev, Sergey, Sheshnitsan, Sergey, Litovchenko, Daria, Larionov, Maxim Viktorovich, Shokurov, Anton, Litovchenko, Pavel, and Durmanov, Nikolay

Subjects
*REMOTE sensing, *ENVIRONMENTAL monitoring, *MACHINE learning, *CARBON sequestration in forests, *NATURAL resources, *BIOMASS estimation, *FOREST biomass
Abstract

The rapid and accurate estimation of aboveground forest phytomass remains a challenging research task. In general, methods for estimating phytomass fall mainly into the category of field measurements performed by ground-based methods, but approaches based on remote sensing and ecological modelling have been increasingly applied. The aim is to develop the scientific and methodological framework for the remote sensing estimation of qualitative and quantitative characteristics of forest stands, using the combination of surveys and machine learning models to determine phytomass of forest stands and calculate the carbon balance. Even-aged stands of different tree species growing in the forest steppe zone of the East European Plain were chosen as test objects. We have applied the modernized methodological approaches to compare and integrate forest and tree stand characteristics obtained by ground-based and UAV-based comprehensive surveys; additionally, we developed computer vision models and methods for determining the same characteristics by remote sensing methods. The key advantage of the proposed methodology for remote monitoring and carbon balance control over existing analogues is the minimization of the amount of groundwork and, consequently, the reduction inlabor costs without loss of information quality. Reliable data on phytomass volumes will allow for operational control of the forest carbon storage, which is essential for decision-making processes. This is important for the environmental monitoring of forests and green spaces of various economic categories. The proposed methodology is necessary for the monitoring and control of ecological–climatic and anthropogenic–technogenic transformations in various landscapes. The development is useful for organizing the management of ecosystems, environmental protection, and managing the recreational and economic resources of landscapes with natural forests and forest plantations. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

2. Assessment of Phytomass and Carbon Stock in the Ecosystems of the Central Forest Steppe of the East European Plain: Integrated Approach of Terrestrial Environmental Monitoring and Remote Sensing with Unmanned Aerial Vehicles

Author

Vasiliy Slavskiy, Sergey Matveev, Sergey Sheshnitsan, Daria Litovchenko, Maxim Viktorovich Larionov, Anton Shokurov, Pavel Litovchenko, and Nikolay Durmanov

Subjects
forest phytocoenoses, forest landscapes, canopy layer, morphometric parameters of trees, forest survey, phytomass, Science
Abstract

The rapid and accurate estimation of aboveground forest phytomass remains a challenging research task. In general, methods for estimating phytomass fall mainly into the category of field measurements performed by ground-based methods, but approaches based on remote sensing and ecological modelling have been increasingly applied. The aim is to develop the scientific and methodological framework for the remote sensing estimation of qualitative and quantitative characteristics of forest stands, using the combination of surveys and machine learning models to determine phytomass of forest stands and calculate the carbon balance. Even-aged stands of different tree species growing in the forest steppe zone of the East European Plain were chosen as test objects. We have applied the modernized methodological approaches to compare and integrate forest and tree stand characteristics obtained by ground-based and UAV-based comprehensive surveys; additionally, we developed computer vision models and methods for determining the same characteristics by remote sensing methods. The key advantage of the proposed methodology for remote monitoring and carbon balance control over existing analogues is the minimization of the amount of groundwork and, consequently, the reduction inlabor costs without loss of information quality. Reliable data on phytomass volumes will allow for operational control of the forest carbon storage, which is essential for decision-making processes. This is important for the environmental monitoring of forests and green spaces of various economic categories. The proposed methodology is necessary for the monitoring and control of ecological–climatic and anthropogenic–technogenic transformations in various landscapes. The development is useful for organizing the management of ecosystems, environmental protection, and managing the recreational and economic resources of landscapes with natural forests and forest plantations.

Published
2024
Full Text
View/download PDF

3. Application of a Kohonen's self-organizing map for evaluation of long-term changes in forest vegetation.

Author

Adamczyk, Jolanta J., Kurzac, Maria, Park, Young‐Seuk, Kruk, Andrzej, and Podani, János

Subjects
*SELF-organizing maps, *SELF-organizing systems, *PLANT species, *PLANT ecology, *PLANT communities
Abstract

Question Can a Kohonen's self-organizing map, which is robust to non-linear relationships between variables and their non-normal distributions, be effective in patterning the data on plant communities investigated with the classical Braun- Blanquet phytosociological method based on the ordinal scale? Does the application of the self-organizing map make it possible to obtain new information from the analysed plant communities when compared to the Braun- Blanquet method alone? Location The Babsk nature reserve, Central Poland. Methods The analysed data were derived from two separate series of phytosociological studies on plant communities dating from periods 31 yr apart (1960 and 1991). The data consisted of 24 quantitative sampling lists of plant species (=phytosociological releves). The releves were analysed by the application of a Kohonen's self-organizing map and the indicator value ( Ind Val). Results The transformations from Querco roboris- Pinetum to Tilio cordatae- Carpinetum betuli in the vegetation in the Babsk nature reserve over 31 yr were determined precisely. Valuable new data were also obtained on: (1) significant associations of individual plant species with the previous and recent phytocoenoses, i.e. diagnostic groups of plant species for each phytocoenosis; (2) abiotic conditions (determined retrospectively in the two study periods on the basis of ecological indicators for vascular plants); and (3) the concordance of phytocoenoses with the biotope. Conclusions The Kohonen's self-organizing map method and the Ind Val made it possible to efficiently identify abiotic and biotic patterns for plant communities on the basis of the data expressed in the conventional Braun- Blanquet scale. [ABSTRACT FROM AUTHOR]

Published
2013
Full Text
View/download PDF

4. Consortium relationship of microfungi in forest phytocoenoses

Author

Faruk Selçuk and Elşad Hüseyin

Subjects
Konukçu, Orman fitosönozları, Host, Consortium relationship, Microfungi, Forest phytocoenoses, Anahtar kel meler: M krofunguslar,Orman f tosönozları,Konsort f l şk,Konukçu, Konsortif ilişki, Mikrofungus
Abstract

Bu çalışmada mikrofungusların konsortif yapıları ve konukçuları ile olan ilişkileri hakkında bilgi verilmiştir. Ayrıca, Ülkemizin kimi orman fitosönozlarında yapılan tür teşhis çalışmalarının sonuçları da verilmiştir. Buralarda tespit edilen mikrofunguslar konsortif açıdan (indifferent, negatif, antogonistik ve pozitif) değerlendirilmiştir. Orman fitosönozlarında bulunan mikrofungusların teşhisi ile elimizde bir tür listesi oluşmaktadır. Ancak bu mikrofungusların konsortif ilişkilerinin değerlendirilmesi, ormanlarımızın korunması ve devamlılığının sağlanması bakımından önemlidir., In this study, the consortium structures of microfungi and their relationship with the host plants are introduced. In addition, the results of species identification among some forest phytocenosis are also provided. The microfungi are discussed in terms of indifferent, negative, antagonistic and positive aspects. We have got a species list with the identification of microfungi in forest phytocenosis. However, it is important the evaluation of the consortium relationship of these microfungi in terms of protection and ensuring the continuity of forest., DOI: 10.15318/Fungus.2016118357

Published
2016

5. The Ontogenetic Structure of the Populations of Fraxinus excelsior in the Krolevetsko- Glukhovskiy Geobotany District

Author

Degtyarev, Vladislav

Subjects
онтогенез, лісові фітоценози, ясен звичайний, популяції, coenopopulations, forest phytocoenoses, Кролевецько-Глухівський гео- ботанічний район, Fraxinus excelsior, ontogenetic spectrum, Krolevetsko- Glukhovskiy geobotany district
Abstract

Вивчено та розглянуто онтогенетичну структуру ценопопуляцій Fraxinus excelsior у дев’яти угрупованнях лісової рослинності, типових для Кролевецько-Глухівського геоботанічного району. Для зазначеного регіону встановлено характерні ознаки онтогенетичних спектрів Fraxinus excelsior. Визначено напрямки зміни стану ценопопуляцій та їх онтогенетичних характеристик у цьому регіоні. Studied and discussed in detail the ontogenetic structure of coenopopulations of Fraxinus excelsior in the nine groups of the forest vegetation, typical for the Krolevetsko-Glukhovski geobotany district, located in the north-eastern Ukraine. The territories of the broadleaf forests (forestry purposes and nature reserve fund) were investigated. Under their canopy presented Fraxinus excelsior. It is one of the leading forestforming species in the region. The characteristic features of the ontogenetic spectrum of Fraxinus excelsior were established.

Published
2014

6. The First Records of Myxomycetes in the Forest Phytocoenoses of the National Nature Park «Vyzhnytski»

Author

Dudka, I. O. and Kryvomaz, T. I.

Subjects
субстрати, лісові фітоценози, National nature park «Vyzhnytski», національний природний парк «Вижницький», таксономічне різноманіття, forest phytocoenoses, міксоміцети, substrates, myxomycetes, taxonomic diversity
Abstract

Для встановлення різноманіття грибоподібних організмів класу Myxomycetes у вересні 2013 р. було проведено мікологічне обстеження Національного природного парку «Вижницький» (Чернівецька область). У лісових фітоценозах парку вперше знайдено 19 видів міксоміцетів. Аналіз таксономічної структури їх біоти показав, що зареєстровані види − представники 13 родів, 7 родин, 5 порядків, 2 класів (Ceratiomyxomycetes і Myxomycetes) відділу Eumycetozoa. За видовим складом домінує порядок Trichiales, найбідніші порядки Ceratiomyxales і Stemonitales. Найбільш поширені в лісових ценозах парку види Fuligo septica, Lycogala epidendrum та Physarum album. Несприятливі для розвитку спороношень міксоміцетів умови вегетаційного сезону 2013 р. (незвичайно високі температури повітря влітку і відсутність дощів у вересні) сприяли масовому утворенню склероціїв у деяких видів, зокрема Arcyria denudata, Lycogala epidendrum, Stemonitopsis. Щодо розподілу за екологічними групами варто відзначити, що 18 видів (94,7 %) належать до ксилофілів, які в парку розвиваються переважно на мертвій деревині бука лісового (16; 82,4 %). Тільки Didymium difforme, зібраний на гнилих опалих листках невизначеного виду дерева, є представником екологічної групи філофілів. In order to reveal diversity of the fungi-like organisms from class Myxomycetes in September 2013 mycological observation of National nature park «Vyzhnytskyi» (Chernivetska district) was held. In the park forest phytocoenoses 19 species of myxomycetes were discovered for the first time. Analysis of its biota taxonomic structure has shown that registered species are the representatives of 13 genera, 7 families, 5 orders, 2 classes (Ceratiomyxomycetes and Myxomycetes) from phylum Eumycetozoa. Order Trichiales dominates as regards species diversity, the poorest species composition is typical for orders Ceratiomyxales and Stemonitales. Fuligo septica, Lycogala epidendrum and Physarum album are the most wide-spread species in the park forest coenoses. Conditions of the vegetative season 2013 (unusually high summer temperatures and absence of rains in September) were unfavorable for the development of myxomycetous sporulation and became the reason of mass sclerotia formation in some species, in particular Arcyria denudata, Lycogala epidendrum, Stemonitopsis. Concerning the distribution between the ecological groups it should be noted 18 species (94,7 %) belong to xylophylous ones that in park are predominantly developed at the dead wood of beech (16; 82,4 %). Only Didymium difforme, collected on the rotten fallen leaves of unidentified species of tree, is the representative of phylophylous ecological group. Роботу виконано у відділі мікології Інституту ботаніки ім. М. Г. Холодного НАН України

Published
2014

7. LA VEGETAZIONE FORESTALE DEL PARCO NAZIONALE DEL GRAN SASSO E MONTI DELLA LAGA

Author

Simona Casavecchia, S. Pesaresi, Gianfranco Pirone, Anna Rita Frattaroli, and Edoardo Biondi

Subjects
National Park Gran Sasso and Monti della Laga, forest phytocoenoses, phytosociology, habitats, Habitat Directive, forest phytocoenoses, phytosociology, habitats, Habitat Directive
Abstract

L’articolo ha per oggetto una breve presentazione delle comunita vegetali (associazioni) forestali sino ad oggi riconosciute per il territorio del Parco Nazionale del Gran Sasso e Monti della Laga (Appennino centro-meridionale). I dati sulle formazioni forestali che vengono forniti riguardano una sintetica diagnosi dell’associazione con l’indicazione delle specie caratteristiche ed un rilievo fitosociologico esemplificativo, la distribuzione nel Parco Nazionale e i relativi riferimenti bibliografici. Le comunita forestali vengono presentate in relazione con il macrobioclima e le caratteristiche del substrato. Le stesse vengono suddivise nei seguenti gruppi: boschi zonali, legati al clima regionale e caratteristici di una zona bioclimatica (boschi mesofili di caducifoglie (faggete), boschi termofili e submesofili di caducifoglie (querceti a Roverella e Cerro e boschi di Carpino nero), boschi di Pioppo tremolo; boschi extrazonali, presenti al di fuori della zona biogeografica e bioclimatica tipica (boschi misti di sclerofille sempreverdi e di caducifoglie); boschi azonali, svincolati da un’area biogeografica e bioclimatica (boschi di Carpino bianco e Nocciolo, boschi di forra con Aceri, Tigli e Olmo montano, saliceti arboreo-arbustivi e ontanete). Vengono in totale discusse e presentate 26 associazioni forestali appartenenti a 4 classi di vegetazione, la cui posizione gerarchica risulta dall’allegato schema sintassonomico. Da ultimo viene presentato il quadro delle tipologie di habitat forestali, sensu Direttiva (92/43/CEE), presenti nel Parco, che rappresentano una parte importante della biodiversita ricadente nel suo territorio.

Published
2010

Catalog

Books, media, physical & digital resources
See catalog results