The ecological-coenotic specters of the flora in the river Vyatka protected areas

2020 ◽  
Vol 9 (2) ◽  
pp. 48-53
Author(s):  
Natalya Yu. Egorova ◽  
Tatiana L. Egoshina
Keyword(s):  
Protected Areas ◽  
River Basin ◽  
Boreal Forests ◽  
Anthropogenic Impact ◽  
Forest Ecosystems ◽  
Ground Cover ◽  
Significant Part ◽  
Shrub Layer ◽  
Relic Species ◽  
Solitary Species

The paper presents the results of a comparative ecological-coenotic analysis of 6 floras of the river Vyatka (Kirov Region, Russia). The floras of the studied areas are boreal and include rare and relic species of all-European importance. As for ecological structure the floras of the studied protected areas do not differ significantly and refer to 7 ecological-coenotic groups. Meadow and meadow-opening groups dominate in the revealed complex (28,48% to 41,84%). This may be caused by a systematic and strong anthropogenic impact on the protected areas. For example, trampling contributes to the increased invasion of meadow and meadow-edge species in forest ecosystems, where they take a significant part in the living ground cover, often acting as codominants with constant species of the grass-shrub layer of boreal forests. Less presented are wetland (13,61% to 27,15%), boreal (9,63% to 16,33%), nemoral (8,16% to 14,79%) and nitrophilous (8,16% to 13,33%) groups. The share of coniferous group varies from 4,44% to 7,10%. The oligotrophic group is presented by solitary species. The authors have also detected the correlation between the ecological-coenotic structure of the flora of the studied areas and the latitudinal location within the river basin.

The conservation of migratory fishes in the second largest river basin of South America depends on the creation of new protected areas

2021 ◽  
Author(s):  
Dayani Bailly ◽  
Valéria Flavia Batista‐Silva ◽  
Fernanda A. Silva Cassemiro ◽  
Priscila Lemes ◽  
Weferson Junio Graça ◽  
...  
Keyword(s):  
South America ◽  
Protected Areas ◽  
River Basin ◽  
The Creation ◽  
Migratory Fishes

scholarly journals Protected Areas in Forest Conservation: Challenges and Opportunities

Forests ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 488
Author(s):  
Panayiotis G. Dimitrakopoulos ◽  
Nikoleta Jones
Keyword(s):  
Protected Areas ◽  
Forest Conservation ◽  
Forest Ecosystems ◽  
Vast Number ◽  
Number Of Species ◽  
Challenges And Opportunities

Forest ecosystems are important habitats for a vast number of species worldwide[...]

scholarly journals The Study of Condition of the South Bug River Basin with Using Geoecological Methods

2020 ◽  
Keyword(s):  
Surface Water ◽  
River Basin ◽  
Anthropogenic Impact ◽  
Surface Water Quality ◽  
Water Hardness ◽  
Farming System ◽  
Data Set ◽  
Normal Limits ◽  
Sampling Points ◽  
Transformation Methods

Purpose. Assess the current state of the Southern Bug River basin and the degree of anthropogenic impact on it (transformation) Methods. The methodology of complex field geographic research (according to S. Kurlov) was chosen for the research. On its basis, water samples were taken at the appropriate points of the river basin, which directly covered the Southern Bug River itself, as well as its tributaries, and the composition of coastal soils was analyzed. Laboratory experiments were performed on the basis of a licensed laboratory of the Uman National University of Horticulture Results. Based on the analysis of the data set of the main hydrochemical indicators of the surface water quality of the Southern Bug river basin and the analysis of the soil, it was found at some experimental points that the MPC content of the studied indicators was exceeded. The content is exceeded at all sampling points, due to the high content of complexes with humic acid salts, secondary waterlogging of reclaimed lands. The nitrite content is exceeded in the following places: r. Southern Bug (Vinnitsa and Ladyzhin), r. Ustya (Nemyriv), r. Udych litskiy district) and r. Dohna (Bershad district). The main reason for the intake of nitrates into the water is the washout of fertilizers from fields and vegetable gardens. All surface water bodies have increased water hardness, its acidity is within normal limits. The soils adjacent to the streams under consideration bear clear signs of hydrogenic accumulation of substances (carbonates, gypsum, salts) and deltaic conditions of formation (horizontal stratification, horizons buried, remnants of freshwater fauna). Conclusions. The concentration of pollutants increases with the approach of the tributaries of the Southern Bug River and the relief formed by them to their base of erosion. Excess concentrations of alkaline hydrolyzed nitrogen, as well as phosphorus and potassium compounds at the sampling points indicate a high level of intensity of the farming system, in which the use of agrochemicals is given priority. However, long-term ingress of these compounds into the water body will accelerate the process of eutrophication in the near future. The loss of humus in the soils of agricultural lands adjacent to the rivers Sob, Dokhna, Ustya was revealed. In general, the geosystem of the Southern Bug River suffers from a complex anthropogenic impact, the main source of which is agricultural production.

scholarly journals Evaluating the Performance of a Forest Succession Model to Predict the Long-Term Dynamics of Tree Species in Mixed Boreal Forests Using Historical Data in Northern Ontario, Canada

Forests ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1181
Author(s):  
Guy R. Larocque ◽  
F. Wayne Bell
Keyword(s):  
Populus Tremuloides ◽  
Boreal Forests ◽  
Forest Ecosystems ◽  
Forest Succession ◽  
Regional Scale ◽  
Abies Balsamea ◽  
Forest Growth ◽  
Northern Ontario ◽  
Phase Dynamics

Environmental concerns and economic pressures on forest ecosystems have led to the development of sustainable forest management practices. As a consequence, forest managers must evaluate the long-term effects of their management decisions on potential forest successional pathways. As changes in forest ecosystems occur very slowly, simulation models are logical and efficient tools to predict the patterns of forest growth and succession. However, as models are an imperfect representation of reality, it is desirable to evaluate them with historical long-term forest data. Using remeasured tree and stand data from three data sets from two ecoregions in northern Ontario, the succession gap model ZELIG-CFS was evaluated for mixed boreal forests composed of black spruce (Picea mariana [Mill.] B.S.P.), balsam fir (Abies balsamea [L.] Mill.), jack pine (Pinus banksiana L.), white spruce (Picea glauca [Moench] Voss), trembling aspen (Populus tremuloides Michx.), white birch (Betula papyrifera Marsh.), northern white cedar (Thuja occidentalis L.), American larch (Larix laricina [Du Roi] K. Koch), and balsam poplar (Populus balsamefera L.). The comparison of observed and predicted basal areas and stand densities indicated that ZELIG-CFS predicted the dynamics of most species consistently for periods varying between 5 and 57 simulation years. The patterns of forest succession observed in this study support gap phase dynamics at the plot scale and shade-tolerance complementarity hypotheses at the regional scale.

scholarly journals Spectrum of ecological-coenotical groups of pine forests of the nature monument “medvedskij Bor” (Kirov region)

2020 ◽  
Vol 19 (2) ◽  
pp. 341-345
Author(s):  
O. N. Perestoronina ◽  
S. V. Shabalkina ◽  
N. P. Savinykh
Keyword(s):  
Natural Transformation ◽  
Significant Part ◽  
Pine Forests ◽  
Large Share ◽  
Shrub Layer ◽  
Marginal Groups

The dynamics of ecological-coenotical groups of the grass-shrub layer in various pine forests of the naturemonument “Medvedskij Bor” is analyzed in connection with the transformation of communities. The boreal groupoccupies a large share, the plants of the boreal and boreal-marginal groups account for a significant part, the meadowsteppe group disappear in most communities. A natural transformation of steppe pine-forests (bor) into zonal forests isobserved.

scholarly journals Finding of rare species of plats in the southern part of the Sinyukha river basin

2021 ◽  
pp. 37-45
Author(s):  
K. V. Zhulenko
Keyword(s):  
Protected Areas ◽  
River Basin ◽  
Plant Species ◽  
Current Distribution ◽  
Rare Species ◽  
Rare Plant ◽  
Anthropogenic Pressure ◽  
Natural Habitats ◽  
Rare Plant Species ◽  
New Localities

Introduction. The Sinyukha river basin, in particular its southern part, is an area with a high level of anthropogenic pressure and a significant level of agricultural development (the proportion of agricultural land is more than 80%), with fragmented natural habitats. Detailed chorological study is needed to supplement the pattern of the distribution of rare plant species, to develop measures for their conservation, to optimize the existing network of protected areas in the region.Рurpose of the study isto analyze the current distribution and describe new finds of some rare plant species in the southern part of the Sinyukha river basin.Methods. The research was conducted in April-June 2021. We surveyed the area of the Sinyukha river valley from the village of Kalamazovo (Vilshansky district, Kirovohrad region) to its confluence with the Southern Bug River in Pervomaisk (Mykolayiv region), as well as – the valleys of its tributaries – Chorny Tashlyk, Malyi Tashlyk and Sukhyi Tashlyk. When locating a rare species, the plants were photographed and georeferenced at a point with GPS-navigator. Species cover is given according to the Broun-Blanquet scale. The distribution maps were performed by free QGIS software.Results.We revealed new and confirmed known localities of 20 rare species:Adonis vernalis, Asplenium septentrionale, Astragalus dasyanthus, A. odessanus, Bellevalia sarmatica, Clematis integrifolia, Crocus reticulatus, Dianthus hypanicus, Ephedra distachya, Hyacinthella leucophaea, Iris pontica, Iris pumila, Ornithogalum boucheanum, Pulsatilla pratensis, Primula veris, Sedum borissovae, Stipa capillata, S. lessingiana, S. pennata, Tulipa hypanica. Among the 20 identified rare species one has the category VU (Vulnerable) in the IUCN red list and belongs to the list of Resolution 6 of the Berne Convention; three species are narrowly local endemics of the Dnieper Upland; 11 are listed in the Red Book of Ukraine (5 of them have the status vulnerable, 1 – rare, 5 – insufficiently known); 5 species are regionally rare in Kirovohrad and 8 – in Mykolayiv regions. Most of the revealed species have a cover less than 5%. Only 9 of the 20 registered rare species characterized by more than five localities within the studied area. Originality. New localities of 20 rare species of plants of different levels of protection have been revealed. Prospects for conservation valuableof their habitats are offered.Conclusion. We have identified a significant number of new localities of rare plant species that are not covered by proper protection. This indicates the need for more detailed chorological research to elucidate the current distribution of rare species and the creation of new protected areas. Key words:rare species; threat category; red lists; natural habitats; chorology.

scholarly journals Classification of Active Fires and Weather Conditions in the Lower Amur River Basin

2020 ◽  
Vol 12 (19) ◽  
pp. 3204
Author(s):  
Hiroshi Hayasaka ◽  
Galina V. Sokolova ◽  
Andrey Ostroukhov ◽  
Daisuke Naito
Keyword(s):  
River Basin ◽  
Boreal Forests ◽  
Weather Condition ◽  
Weather Forecast ◽  
Weather Conditions ◽  
Amur River Basin ◽  
Fire Weather ◽  
Strong Wind ◽  
Amur River ◽  
Active Fire

Most wildland fires in boreal forests occur during summer, but major fires in the lower Amur River Basin of the southern Khabarovsk Krai (SKK) mainly occur in spring. To reduce active fires in the SKK, we carried out daily analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) hotspot (HS) data and various weather charts. HS data of 17 years from 2003 were used to identify the average seasonal fire occurrence. Active fire-periods were extracted by considering the number of daily HSs and their continuity. Weather charts, temperature maps, and wind maps during the top 12 active fire-periods were examined to clarify each fire weather condition. Analysis results showed that there were four active fire-periods that occurred in April, May, July, and October. Weather charts during the top active fire-periods showed active fires in April and October occurred under strong wind conditions (these wind velocities were over 30 km h−1) related to low-pressure systems. The very active summer fire at the end of June 2012 occurred related to warm air mass advection promoted by large westerly meandering. We showed clear fire weather conditions in the SKK from March to October. If a proper fire weather forecast is developed based on our results, more efficient and timely firefighting can be carried out.

Indicative Status Assessment, Biodiversity Conservation, and Protected Areas Within the Sava River Basin

2014 ◽  
pp. 453-500 ◽  
Author(s):  
Vladica Simić ◽  
Ana Petrović ◽  
Boris Erg ◽  
Duška Dimović ◽  
Jarmila Makovinska ◽  
...  
Keyword(s):  
Protected Areas ◽  
Biodiversity Conservation ◽  
River Basin ◽  
Sava River ◽  
Status Assessment ◽  
The Sava River
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