State of Rosa acicularis L. coenopopulations in forest park zone of Ekaterinburg

The experiments revealed that the studied fragments of Rosa acicularis L. coenopopulation were normal and full-fledged with single-vertex ontogenetic spectra. They are able to form self-sustaining habitats for several generations and spread over a significant territory. Three periods and six ontogenetic states were distinguished in the ontogenesis of Rosa acicularis L. The age structure had three types of spectrum - left-sided, centered, and right-sided. The difference in the ontogenetic structure depends on influence of anthropogenic factor, ecological and coenotic conditions of rose habitats, and variations in climatic conditions. When analyzing the parameters of coenopopulations, we found that the best conditions for existence of Rosa acicularis L. were in the berry pine forest (FCP5) in the park named after Foresters of Russia and reed grass pine forest (FCP1) in Uktus forest park, where the habitats were characterized by high morphological indicators, numbers and high values of the pregenerative fraction.

Baikal endemic sponge disease and anthropogenic factor

This article presents the results of observations of the state of the Baikal endemic sponge fauna (Fam. Lubomirskiidae) in the five-year dynamics against the background of their mass mortality. We indicate the change in the projective bottom cover with healthy and diseased sponges at two sites that are radically different from each other in the level of anthropogenic pressure. We also analyse the types of diseases and sponge species exposed to these at the study sites. We observe a significant decrease in the area of the projective bottom cover with healthy sponges both at the site experiencing heavy anthropogenic pressure and at the site where it is almost absent. However, our data have indicated great influence of the anthropogenic factor on the course of the disease and death of sponges. Degradation of sponges at the anthropogenically unfavourable site began much earlier than that at the site with the minimum anthropogenic impact. The most common species are the most susceptible to all types of diseases. At the same time, there is a catastrophic decrease in the abundance of the only branching species in Lake Baikal, Lubomirskia baikalensis.

DISTRIBUTION AREA AND CREATION CAUSES OF WATER EROSION IN LANKARAN REGION

The distribution area of water erosion has been determined, factors causing creation and intensification of erosion process have been identified in Lankaran region in this article. It was known that a main reason in intensification of erosion process in Lankaran region is anthropogenic factor. Trus, ill-considered human economic activity, replacement of natural forest cover with agricultural crops, untimely and improper organization of antierosion control measures have led to a decrease in soil quality and productivity, as well as accelerated erosion processes. The mountainous, foothill and plain areas of Lankaran region, which are the object of research, are at risk of water erosion. The total area of the region is 636,3 thousand hectares. Of this, 266,5 thousand hectares, or 41,9% were subject to various degrees of erosion.

Problem issues of methodology of synecological diagnostics of anthropogenic transformation of forest ecosystems

Aim. The aim of the study was to identify and systematize methodological problems in the diagnosis of anthropogenic transformation of forest ecosystem. Methods. Theoretical methods of system-structural, retrospective analysis, interdisciplinary, ecosystem approaches, special methods of forestry, synecology, ornithology and mycology. Results. Changes in functional indicators and parameters of communities were recorded depending on the genesis of the anthropogenic factor, pattern, intensity and time-scale of its impact and reproducibility of ecosystems. These changes were established in the presence of close correlation between the most sensitive structural and functional components (grass layer, leaf-litter, surface of soil, stand) and preserving the integrity of consorted links. Conclusions. A conceptual model for diagnostic human transformation of forest ecosystems for various functional according to the state and development of consorted links of producers, consumers, reducers (for example, plants, fungi, birds) through qualitative and quantitative parameters of relevant diversity structures and principles of its application was proposed. Keywords: ecosystem, communities, anthropogenic factor, transformation, biodiversity, consorted links.

Influence of the Urban Environment on the English Oak (Quercus Robur L.) Growth and Development

The morphological parameters of the maternal trees growth, seed progeny and seedlings, and the value of the fluctuating asymmetry (FA) of the leaves of adult plants under urban influence were estimated. Urban oak groves have a low growth rate of shoots. Rural and suburban oak groves are characterized by an increase in the shoot. The coefficients of variation (Cv) in the length and width of leaf blades are generally low; only for 1 territory near urban radius and experiencing the influence of industrial enterprises, the Cv of the length of the leaf blade is 29.3% and the width of the leaf blade - 30.4%. FA for all oak forests, with the exception of Chizhovskoe tract (0.056), not exceed 0.04, thus, they are resistant to the anthropogenic factor. The average growth of seedlings is 13-14 cm. The coefficient of variation for shoot length for most groups of seedlings exceeds 30%. The suburban seedlings have the largest shoot thickness and exceed 0.3 cm. Among urban seedlings, the oak population in the most distant from the city (middle circle), is close to this indicator. The areas of the lowest emission load of pollutants coincide with the forest areas of the city.

BÖYÜK QAFQAZIN CƏNUB-ŞƏRQ YAMACINDA ANTROPOGEN TRANSFORMASİYANIN QİYMƏTLƏNDİRİLMƏSİ

The article assesses the anthropogenic transformation of the southern slope landscape complexes of the Greater Caucasus. In this case, the location of settlements in the landscape (in%), population density (people / km2) were taken as evaluation criteria. Key words: Anthropogenic factor, Greater Caucasus, anthropogenic transformation, landscape Böyük Qafqazın cənub-şərq zonası 412290,65 ha sahəni əhatə edir. Həmin ərazidə kiçik və orta ölçülü 196 yaşayış məntəqəsi qeydiyyata alınmışdır. Burada yerləşən məntəqələrin 4-ü şəhər tipli, 5-i qəsəbə və 187-si isə kənd tiplidir.

Phytomelioration of the south-eastern layer of the Great Caucasus, ruptured-broken mountain brown soils (on the example of the Shamakhinsky district)

The article describes the southeastern slope of the Greater Caucasus - Shemakhan region, The results of field and laboratory analysis of soil samples taken from "less disturbed" and "moderately eroded" areas of pastures and pastures in the village of Gizmeidan were discussed, and accurate information on their physiccochemical characteristics was given. After studying the current state of the soil and vegetation of these territories, phyto-reclamation measures were carried out using perennial grasses and mineral fertilizers in the "moderately eroded" territories. Depending on the results of the various options, the farm was given appropriate recommendations. Therefore, it is very important to study ways to increase the productivity of arable land provided to legal entities and individuals using this territory, to provide them with scientific, scientific and methodological assistance in applying the necessary agrotechnical and phytomeliorative control measures. Key words:landscape, land, forest, degradation, erosion, climate, relief, anthropogenic factor, hashtag, fertilizer, pasture, humus, food elements, productivity