scholarly journals Análise comparativa da fragilidade ambiental da bacia do rio Piracicaba a partir da aplicação de dois modelos metodológicos: suporte para o estabelecimento e proposição de Corredores Ecológicos.

2020 ◽  
Vol 13 (6) ◽  
pp. 3060
Author(s):  
Suelen Crispim Sutil ◽  
José Augusto Costa Gonçalves ◽  
Eliane Maria Vieira
Keyword(s):  
Environmental Management ◽  
Comparative Analysis ◽  
River Basin ◽  
Forest Fragmentation ◽  
Riparian Forests ◽  
Forest Patches ◽  
Biological Corridors ◽  
Gradual Development ◽  
History Of ◽  
Piracicaba River

A avaliação da fragilidade ambiental das bacias hidrográficas vem se tornando cada vez mais importante no cenário ambiental, devido ao desenvolvimento gradativo da sociedade e a expansão tecnológica e econômica ao longo dos anos. Uma estratégia adotada para amenizar a degradação e restabelecer o equilíbrio, é a formação de corredores ecológicos (CEs), que auxilia na ligação entre remanescentes naturais. A bacia do rio Piracicaba passa por um longo histórico de degradação e de fragmentação florestal, principalmente próximo às cidades devido ao desmatamento de matas ciliares. Em vista disso, este trabalho analisou e comparou a aplicação de dois diferentes modelos de fragilidade ambiental, aplicada a esta bacia e, a partir de seus produtos identificou a melhor metodologia base para a proposição de corredores ecológicos na região. Com os resultados obtidos, foi possível inferir que, além de grande parte da bacia apresentar grau de fragilidade entre fraco e médio, as áreas mais vulneráveis são aquelas mais próximas à cabeceira da bacia. O estabelecimento dos corredores ecológicos abrangeu, prioritariamente, as áreas de maior fragilidade entre a conexão dos fragmentos de vegetação e as Áreas de Preservação Permanentes (APPs), assim, verificou-se que é necessário o reflorestamento de cerca de 342,24 km² das APPs da bacia para que seja possível a conexão entre as remanescentes e 2,0 km²  de áreas de ligação. Comparative analysis of the environmental fragility of the Piracicaba river basin using two methodological models: support for the application and proposition of Biological Corridors A B S T R A C TThe assessment of a river basin’s environmental fragility has become even more important on the environmental scenery due to society’s gradual development and technological and economic expansion over the years. An adopted strategy to ease the degradation and restore the ecological balance is the establishment of biological corridors that can assist the connection between natural forest patches. The Piracicaba river basin has been going through a long history of degradation and forest fragmentation, especially near the cities because of the deforestation of riparian forests. Therefore, this paper analyzed and compared the application of two adapted environmental fragility models in this river basin and identified from their products the best base methodology for the proposition of ecological corridors. From the results, it was possible to infer that, in addition to a big part of the basin present poor and average fragility level, the most vulnerable areas are the ones close to the source of the main rivers. The biological corridors establishment covered, primarily, the most vulnerable areas between the fragments of remaining forests and the Permanent Preservation Areas (PPAs) and, from this, it was possible to verify that the reforestation of around 132,14 mi² of PPAs is necessary for the connection of patches of remaining forests and 0,77 mi² of connections areas.Keywords: environmental vulnerability, geoprocessing, environmental management.

scholarly journals Multi-Scale Assessment of Relationships between Fragmentation of Riparian Forests and Biological Conditions in Streams

2019 ◽  
Vol 11 (18) ◽  
pp. 5060 ◽  
Author(s):  
Yirigui ◽  
Lee ◽  
Nejadhashemi
Keyword(s):  
Water Quality ◽  
Forest Fragmentation ◽  
Ecosystem Health ◽  
Riparian Forest ◽  
Anthropogenic Activities ◽  
Biological Indicators ◽  
Riparian Forests ◽  
Riparian Areas ◽  
Forest Patches ◽  
Biological Condition

Due to anthropogenic activities within watersheds and riparian areas, stream water quality and ecological communities have been significantly affected by degradation of watershed and stream environments. One critical indicator of anthropogenic activities within watersheds and riparian areas is forest fragmentation, which has been directly linked to poor water quality and ecosystem health in streams. However, the true nature of the relationship between forest fragmentation and stream ecosystem health has not been fully elucidated due to its complex underlying mechanism. The purpose of this study was to examine the relationships of riparian fragmented forest with biological indicators including diatoms, macroinvertebrates, and fish. In addition, we investigated variations in these relationships over multiple riparian scales. Fragmentation metrics, including the number of forest patches (NP), proportion of riparian forest (PLAND), largest riparian forest patch ratio (LPI), and spatial proximity of riparian forest patches (DIVISION), were used to quantify the degree of fragmentation of riparian forests, and the trophic diatom index (TDI), benthic macroinvertebrates index (BMI), and fish assessment index (FAI) were used to represent the biological condition of diatoms, macroinvertebrates, and fish in streams. PLAND and LPI showed positive relationships with TDI, BMI, and FAI, whereas NP and DIVISION were negatively associated with biological indicators at multiple scales. Biological conditions in streams were clearly better when riparian forests were less fragmented. The relationships of NP and PLAND with biological indicators were stronger at a larger riparian scale, whereas relationships of LPI and DIVISION with biological indicators were weaker at a large scale. These results suggest that a much larger spatial range of riparian forests should be considered in forest management and restoration to enhance the biological condition of streams.

scholarly journals Forest Fragmentation And Landscape Structure In The Guamá River Basin, Eastern Amazon

2021 ◽  
Vol 14 (3) ◽  
pp. 32-40
Author(s):  
Nívia C. V. Rocha ◽  
Aline M. M. De Lima ◽  
Marcos Adami
Keyword(s):  
Land Use ◽  
Land Cover ◽  
River Basin ◽  
Forest Fragmentation ◽  
Landscape Structure ◽  
Ecological Integrity ◽  
Joint Analysis ◽  
Forest Patches ◽  
Area Index ◽  
Partial Conservation

The Guamá River basin, in the northeastern state of Pará, eastern Amazon, Brazil, encompasses approximately 1,200,000 hectares. It presents great economic and social importance and is under significantly changes in land use and land cover. The objective of this work was to analyze and characterize the landscape structure of this basin through landscape ecology indexes (density, size, metric variability, shape, core area, proximity indexes, and patch area index). Land use and land cover maps were developed using images from the RapidEye system through supervised digital classification. The vegetation and landscape structure were quantified in patches, classes, and land cover. The forest patches were associated with partial conservation of some areas where production sectors had not yet directly affected, or those from natural regeneration of abandoned areas, mainly pastures. The class vegetated area was the second class most representative of the Guamá River basin covered about 37% considering the total area. The basin landscape presented more than 34,000 vegetated area patches It showing that this class are very fragmented by the presence of a large number of small patches, with this the basin landscape is compromised regarding its ecological integrity, since more than half of its forest patches are in edge environments. The indexes enabled a good joint analysis of the sub-basins of the Guamá River basin, resulting in a more detailed overview of the forest fragmentation process.

Apocrypha from the History of the Jewish Military Union and its Authors

2008 ◽  
pp. 147-176
Author(s):  
Dariusz Libionka
Keyword(s):  
Comparative Analysis ◽  
Critical Analysis ◽  
Communist Regime ◽  
Research Approach ◽  
Warsaw Ghetto ◽  
History Of

This article is an attempt at a critical analysis of the history of the Jewish Fighting Union (JFU) and a presentation of their authors based on documents kept in the archives of the Institute of National Remembrance in Warsaw. The author believes that an uncritical approach and such a treatment of these materials, which were generated under the communist regime and used for political purposes resulted in a perverted and lasting picture of the history of this fighting organisation of Zionists-revisionists both in Poland and Israel. The author has focused on a deconsturction of the most important and best known “testimonies regarding the Warsaw Ghetto Uprising”, the development and JFU participation in this struggle, given by Henryk Iwaƒski, WΠadysΠaw Zajdler, Tadeusz Bednarczyk and Janusz Ketling–Szemley.A comparative analysis of these materials, supplemented by important details of their war-time and postwar biographies, leaves no doubt as to the fact that they should not be analysed in terms of their historical credibility and leads one to conclude that a profound revision of research approach to JFU history is necessary.

A comparative analysis of the anthropogenic impact and user-pays principle availability in the model areas of the Russian Federation

2020 ◽  
Vol 18 (9) ◽  
pp. 1787-1798
Author(s):  
S.N. Ayusheeva
Keyword(s):  
Environmental Management ◽  
Comparative Analysis ◽  
Russian Federation ◽  
Natural Environment ◽  
Anthropogenic Impact ◽  
Negative Impact ◽  
Economic Behavior ◽  
Environmental Investment ◽  
The Russian Federation ◽  
Comparative Systems

Subject. This article assesses the effectiveness of the existing system of environmental management based on the user-pays principle in terms of reducing the negative impact on the environment. Objectives. The article aims to conduct a comparative analysis of the anthropogenic impact on natural environment components and deficiency payments for pollution in the model areas of the Russian Federation. Methods. For the study, I used the methods of computational, comparative, systems, and structural analyses. Results. Based on the ecological rating of the Russian Federation subjects, the article defines model areas, assesses the degree of anthropogenic impact on the basis of pollution relative rates, and describes the particularities of environmental investment in the selected areas. Conclusions. The system of payments for pollution does not affect the economic behavior of economic entities.

THE TIMURID PERIOD FROM THE HISTORY OF THE FINE ARTS

2019 ◽  
Vol 19 (2) ◽  
pp. 28-33
Author(s):  
Ulug'bek Kuryazov ◽  
Keyword(s):  
Comparative Analysis ◽  
Fine Arts ◽  
The World ◽  
History Of

The article examines the works of scholars in the study of the history of fine arts, in particular miniatures of the Amir Temur era and temurids. Special attention is paid to the history of the creativity of Mirak Nakkosh and the outstanding miniaturist Kamoliddin Behzod. A comparative analysis of several miniature works is given. As well as analyzed some miniatures stored in the collections of museums and libraries of the world

Russian Museum of Emperor Alexander III as a place of memory

2020 ◽  
Vol 2020 (11-1) ◽  
pp. 132-147
Author(s):  
Dmitry Rakovsky
Keyword(s):  
Comparative Analysis ◽  
Historical Consciousness ◽  
Russian Society ◽  
Museum Collection ◽  
Works Of Art ◽  
History Of ◽  
The Creation ◽  
Historical Representations

The main purpose of this article is to study the role of the Russian Museum in the formation of the historical consciousness of Russian society. In this context, the author examines the history of the creation of the Russian Museum of Emperor Alexander III and its pre-revolutionary collections that became the basis of this famous museum collection (in particular, the composition of the museum’s expositions for 1898 and 1915). Within the framework of the methodology proposed by the author, the works of art presented in the museum’s halls were selected and distributed according to the historical eras that they reflect, and a comparative analysis of changes in the composition of the expositions was also carried out. This approach made it possible to identify the most frequently encountered historical heroes, to consider the representation of their images in the museum’s expositions, and also to provide a systemic reconstruction of historical representations broadcast in its halls.

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