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Sep 04, 2017Open    AccessArticle

The Structural-Dynamic Organization and Trends of Forests Reconstitution in the South-Western Pre-Baikal (Irkutsk Region, Siberia)

Alexander Sizykh, Alexey Shekhovtsov
At the territories of three key sites with different environmental conditions (coast of Irkutsk Reservoir, the Goloustnaya River basin, surroundings of Gakhany settlement in60 kmnorthward from the urbanized area Ust’-Orda, Irkutsk Region), we performed studies aimed to reveal the structural-dynamic organization and trends of forests reconstitution at the places of burnt areas and of cuttings of different targets. We took into acco
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Aug 16, 2017Open    AccessArticle

The Vegetation Structure (Background) on the Territory of Planned Coal Mine (Irkutsk Region)

Alexander P. Sizykh
Within investigations for project and establishing of a coal mine, preliminary survey aimed to revealing of modern state of vegetation at the territory of establishing of projected coal mine was performed. The information of the structure of phytocenoses modern state can be a reference position for the assessment of a possible impact of technical activities on the state of phytocenoses around
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Jan 12, 2017Open    AccessArticle

Ecological-Geobotanical Monitoring of Forest Use (Some Methodological Aspects)

Alexander Sizykh, Alexey Shekhovtsov
Setting of forms and methods for forest use must be based on assessment and forecast characteristics of forests modern state taking into account probable trends of their formation (or reconstitution) on the base of the analysis of modern physical-geographic conditions on a concrete territory. A very efficient method for this can be an ecological mapping monitoring of forest use with outlining of a series of ecological-geobotanic m
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Jan 05, 2017Open    AccessArticle

Ecotones and Paragenese (Object) as Indicators of Structure-Dynamical Organization of Vegetation on the Background of Climate Dynamics (The Lake Baikal Basine as an Example)

Alexander Sizykh
Usage of methods for determination of long-time trends in the dynamics of vegetation formation on the background of climate changes becomes more important at modern stage of the assessment of natural systems development. Solution of such a task results inevitably in necessity to correct the understanding of existing processes occurring in the vegetation cover. It allows establishing a direction of their development in system of na
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Sep 27, 2016Open    AccessArticle

Determination of the Degree of Pasture Factor Digression in the Communities of Environment Contact Sites (Some Methodological Approaches)

Alexander P. Sizykh
This paper is concerning the problem of determining of the character of disturbance of plant communities under the influence of the pasture factors. There are methodological approaches for determining of the degrees of the digression of the plant communities based on qualitative and quantitative parameters of the structure of cenoses for different natural zones. However, there are no approaches and techniques for comprehens
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Aug 29, 2016Open    AccessArticle

The Lesser Antilles, True Laboratories for the Study of Forest Systems the Evolution (from the Inventory of Plant Species to the Dynamics of the Anthropized Landscapes)

P. Joseph, K. Baillard
Despite their small size, the French West Indies are characterised by a large number of environments supporting a surprisingly high floristic, ecosystem and landscape diversity. From the foundation of dwelling groups, beginning in the 17th century to the present day, human activities have resulted in the sharp decline of the forest areas. To some extent, the Caribbean forest has become “insularized”. Originally, these fo
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Jul 28, 2016Open    AccessArticle

Arealogical and Ecotypological Compositions of the Flora of Plant Communities at Environment Contact Sites (Based on Some Pre-Baikal Sites)

Alexander Sizykh
The study of phytocenoses of transitional environmental conditions in the Pre-Baikal Region enabled to reveal modern tendencies of vegetation development in different Pre-Baikal sites. Such cenoses can serve as a regional model for indication of existing processes and of changes in vegetation structure which occurred under different environmental conditions. It is found out that ecotones and cenoses reflecting the paragenese in ve
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May 26, 2016Open    AccessArticle

Recent Palynology in Caxiuana, Pará, Brazil

Ortrud Monika Barth, Léa Maria Medeiros Carreira
A survey on palynological studies realized in the National Forest of Caxiuana, state of Pará, Brazil, is given. These studies comprise two main issues. Firstly, the morphology of actual pollen grains and spores was described and illustrated. Secondly, pollen grain and spore deposition in a savannah-like area and in “terra-preta-de-índio” (Indian black soil) of the National Forest of Caxiuana were analyzed. Joining this knowledge,
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Mar 25, 2016Open    AccessArticle

Zonality, Interzonality, Height Belts and Ex-trazonality in the Vegetation Structure (Some Methodological Aspects)

Alexander P. Sizykh
The problem of state assessment and change forecast in the whole ecosystems and in the vegetation structure in particular makes a basis of modern biogeographical, geobotanical, biocenological and ecological studies. The main task is to study spatial-temporal self-organization of phytocenoses under different physical-geographic conditions reflecting practically all changes in the environment for a concrete time period. With such an approach, a phytocenosis is considered as a system, which forms a...


Mar 10, 2016Open    AccessArticle

The Spatio-Temporal Interfaces within the Lesser Antilles Vegetation (The Example of the Island of Martinique)

Philippe Joseph
The temporal vegetation dynamics and its spatial distribution cause discontinuities, border areas, ecotones and ecosystem heterogeneities, in other words biocenotics which result in a multitude of shapes and organic combinations. These interfaces are added variations due to vertical stratification involving specific architectures and behaviours towards light. These “interface environments” represent a plurality of plant biodiversity aspects and therefore ecological profiles which form the basis ...


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