DISTRIBUTION AREA AND CREATION CAUSES OF WATER EROSION IN LANKARAN REGION

2021 ◽  
pp. 9-14
Author(s):  
U. Akbarova
Keyword(s):  
Economic Activity ◽  
Forest Cover ◽  
Water Erosion ◽  
Control Measures ◽  
Distribution Area ◽  
Agricultural Crops ◽  
Anthropogenic Factor ◽  
Erosion Process ◽  
Erosion Processes ◽  
Human Economic Activity

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. 

Customs Risk Management System in the Context of Clearance of Customs Procedures

2020 ◽  
Vol 22 (1) ◽  
pp. 59-63
Author(s):  
Ihor Nestoryshen ◽  
◽  
Ivan Berezhnyuk ◽  
Alina Brendak ◽  
◽  
...  
Keyword(s):  
Risk Management ◽  
International Trade ◽  
Economic Activity ◽  
Management System ◽  
Control Measures ◽  
International Treaties ◽  
External Threats ◽  
Risk Management System ◽  
Operational Activities ◽  
International Conventions

Introduction. The article emphasizes that the current features of the implementation of foreign economic activity require consideration of two factors that are contradictory to each other. In particular, on the one hand, the growth of external threats is forcing the governments of many countries to tighten control measures when crossing the state border of goods and commercial vehicles. On the other hand, according to international conventions and agreements (Kyoto Convention, WMO Framework Standards for Security, WTO Facilitation Agreement), measures to reduce the interference of regulatory authorities in the operational activities of economic operators are envisaged. In this context, the use of risk-oriented customs control tools, which allow simplifying business without reducing the level of national security, is becoming especially important. Purpose. The purpose of the article is to generalize and systematize foreign and domestic approaches to simplification of customs procedures through the use of risk-oriented instruments of customs control, as well as to develop their own proposals for simplification of foreign trade entities in the domestic regulatory field by using subject-oriented criteria. Results. The authors analyzed the provisions of the International Convention on the Simplification and Harmonization of Customs Procedures, the Framework Standards for Security and Facilitation of International Trade, the WTO Agreement on Trade Facilitation, which are provided for significant simplification of international trade procedures by reducing the share of customs inspections and controls. Сustoms security, customs clearance of goods and vehicles on the territory of the subjects of foreign economic activity or in another place permitted by the customs, without the direct participation of customs officials. These measures are based on the widespread use of risk-oriented instruments of customs control. It is noted that some of the provisions of international conventions and agreements on the use of risk-oriented instruments of customs control and simplification of economic operators have been implemented in domestic customs legislation, namely Art. 320 of the Customs Code of Ukraine introduced selective customs control, it is determined that the forms and scope of control sufficient to ensure compliance with legislation on state customs and international treaties of Ukraine in customs clearance are selected by customs (customs posts) based on the results of risk management. Conclusion. The study analyzes the peculiarities of the customs risk management system application in customs control in Ukraine, and offers proposals for the use of subject-oriented criteria of customs control as a simplification for honest economic operators to reduce the selectivity of risk profiles ASUR.

Sustainability Of Oaken Landscapes And Dynamics

2020 ◽  
Vol 02 (10) ◽  
pp. 274-278
Author(s):  
Alisher Khodjimatov ◽  
Keyword(s):  
Economic Activity ◽  
Strong Influence ◽  
Human Economic Activity ◽  
The Stability

The article is based on the multifactorial nature of the stability and dynamics of landscapes, especially the strong influence of human economic activity on the stability and dynamics of oasis landscapes.

Straw mulch impact on soil properties and initial soil erosion processes in the maize field

2021 ◽  
Author(s):  
Ivan Dugan ◽  
Leon Josip Telak ◽  
Iva Hrelja ◽  
Ivica Kisić ◽  
Igor Bogunović
Keyword(s):  
Soil Erosion ◽  
Soil Water ◽  
Soil Loss ◽  
Bare Soil ◽  
Water Erosion ◽  
Straw Mulch ◽  
Erosion Processes ◽  
Maize Field ◽  
Sediment Loss ◽  
Initial Soil

<p><strong>Straw mulch impact on soil properties and initial soil erosion processes in the maize field</strong></p><p>Ivan Dugan*, Leon Josip Telak, Iva Hrelja, Ivica Kisic, Igor Bogunovic</p><p>University of Zagreb, Faculty of Agriculture, Department of General Agronomy, Zagreb, Croatia</p><p>(*correspondence to Ivan Dugan: [email protected])</p><p>Soil erosion by water is the most important cause of land degradation. Previous studies reveal high soil loss in conventionally managed croplands, with recorded soil losses high as 30 t ha<sup>-1</sup> under wide row cover crop like maize (Kisic et al., 2017; Bogunovic et al., 2018). Therefore, it is necessary to test environmentally-friendly soil conservation practices to mitigate soil erosion. This research aims to define the impacts of mulch and bare soil on soil water erosion in the maize (Zea mays L.) field in Blagorodovac, Croatia (45°33’N; 17°01’E; 132 m a.s.l.). For this research, two treatments on conventionally tilled silty clay loam Stagnosols were established, one was straw mulch (2 t ha<sup>-1</sup>), while other was bare soil. For purpose of research, ten rainfall simulations and ten sampling points were conducted per each treatment. Simulations were carried out with a rainfall simulator, simulating a rainfall at an intensity of 58 mm h<sup>-1</sup>, for 30 min, over 0.785 m<sup>2</sup> plots, to determine runoff and sediment loss. Soil core samples and undisturbed samples were taken in the close vicinity of each plot. The results showed that straw mulch mitigated water runoff (by 192%), sediment loss (by 288%), and sediment concentration (by 560%) in addition to bare treatment. The bare treatment showed a 55% lower infiltration rate. Ponding time was higher (p < 0.05) on mulched plots (102 sec), compared to bare (35 sec), despite the fact that bulk density, water-stable aggregates, water holding capacity, and mean weight diameter did not show any difference (p > 0.05) between treatments. The study results indicate that straw mulch mitigates soil water erosion, because it immediately reduces runoff, and enhances infiltration. On the other side, soil water erosion on bare soil under simulated rainstorms could be high as 5.07 t ha<sup>-1</sup>, when extrapolated, reached as high as 5.07 t ha<sup>-1 </sup>in this study. The conventional tillage, without residue cover, was proven as unsustainable agro-technical practice in the study area.</p><p><strong>Key words: straw mulch, </strong>rainfall simulation, soil water erosion</p><p><strong>Acknowledgment</strong></p><p>This work was supported by Croatian Science Foundation through the project "Soil erosion and degradation in Croatia" (UIP-2017-05-7834) (SEDCRO).</p><p><strong>Literature</strong></p><p>Bogunovic, I., Pereira, P., Kisic, I., Sajko, K., Sraka, M. (2018). Tillage management impacts on soil compaction, erosion and crop yield in Stagnosols (Croatia). Catena, 160, 376-384.</p><p>Kisic, I., Bogunovic, I., Birkás, M., Jurisic, A., Spalevic, V. (2017). The role of tillage and crops on a soil loss of an arable Stagnic Luvisol. Archives of Agronomy and Soil Science, 63(3), 403-413.</p>

Impact of soil water erosion processes on catchment export of soil aggregates and associated SOC

Geoderma ◽  
2017 ◽  
Vol 294 ◽  
pp. 63-69 ◽  
Author(s):  
Shoucai Wei ◽  
Xiaoping Zhang ◽  
Neil B. McLaughlin ◽  
Xuewen Chen ◽  
Shuxia Jia ◽  
...  
Keyword(s):  
Soil Water ◽  
Soil Aggregates ◽  
Water Erosion ◽  
Erosion Processes

scholarly journals Characteristics of the butterflies on various forms of land uses

2019 ◽  
Vol 30 (3) ◽  
pp. 15-22
Author(s):  
Katarzyna Szyszko-Podgórska
Keyword(s):  
Land Use ◽  
Economic Activity ◽  
Forest Site ◽  
Fallow Land ◽  
Land Uses ◽  
Human Influence ◽  
Numerous Species ◽  
Number Of Species ◽  
Human Economic Activity ◽  
Trees And Shrubs

Abstract The purpose of the work was to identify the occurrence of butterflies depending on landform uses and human influence on the population domination structure. The research was conducted in the ‘Krzywda’ field-and-forest Site occupying 172 ha. The area consists of the land leaving in fallow, meadows and wasteland including about 68 ha of swamps that are strongly eutrophic due to human economic activity. The area is subjected to artificial succession inhibition processes in the form of mowing and cutting of trees and shrubs. 32 species of butterflies were recorded during the research, that is, 20% of all species within this group occurring in Poland. The research has approved the great spatial and quantitative diversification of the occurring area of butterflies depending on the form of the land uses. The greatest number of species and their greatest populations were found in the land laying in fallow without the removal of the biomass. The least number of species and their specimens were collected in the unmown laying fallow land. Lycaena virgaureae was the most numerous species collected. The correct domination structure characterized by a small number of numerous species and a large number of species consisting of a low number of specimens. Processes observed in the studied Site subjected to various types of land use influence the occurrence diversity of this group of insects.

scholarly journals Geobotanical characteristics of psammophytic steppes of the Penza region in the Ardym river basin

2021 ◽  
pp. 35-47
Author(s):  
L. A. Novikova ◽  
◽  
S. N. Artemova ◽  
V. K. Makuev ◽  
E. Y. Yakovlev ◽  
...  
Keyword(s):  
River Basin ◽  
Vegetation Cover ◽  
Steppe Zone ◽  
Anthropogenic Effects ◽  
Forest Steppe ◽  
Anthropogenic Influence ◽  
Erosion Process ◽  
Middle Volga Region ◽  
Erosion Processes ◽  
Middle Volga

The research is devoted to the study of poorly preserved psammophytic variants of meadow steppes in the forest-steppe zone of the Middle Volga Region. It has allowed to define the main stages of re-establishment of vegetational cover and estimate the conservation prospects on the river Ardym in different ecological conditions (geomorphological and edaphyc). It has been established that the re-establishment of psammophytic steppes vegetation occurs in a similar way both on the slopes of the predominantly southern exposition and on watershed surfaces. However, in the absence of anthropogenic effects on watershed surfaces, there is a sylvatization of the vegetation cover resulting in displacement of psammophytic steppes. Only the constantly occurring weak natural erosion processes on the slopes of the predominantly southern exposition contribute to the preservation of these rare communities here. Under intense anthropogenic influence, as well as in the conditions of a significant erosion process, the psammophytic steppes fail to be preserved or replaced by steppe meadows.

scholarly journals Profile degradations of podzolic chernozem of the territory of Male Polissia

2017 ◽  
pp. 98-110
Author(s):  
Volodymyr Haskevych
Keyword(s):  
Physical Properties ◽  
Soil Layer ◽  
Vegetation Period ◽  
Soil Mass ◽  
Water Erosion ◽  
Soil Protection ◽  
Erosion Processes ◽  
Average Annual Loss ◽  
Study Results ◽  
Statistical Field

The article presents the results of the study of Male Polissia podzolic chernozems profile degradation. The causes and consequences of this dangerous natural and man-made phenomenon resulting in changes in the habitus of soils, losses of soil mass and humus, deterioration of general physical properties and structural and aggregate composition, decrease in soil fertility and agriculture unprofitability on the slopes have been analysed. In the study of the profile degradation of podzolic chernozems, the following methods have been used: comparative-geographical, comparative-profile, soil-catena, analytical, and statistical. Field studies were conducted after the vegetation period. According to the study results, the thickness of the profile of weakly eroded podzolic chernozems, in comparison with non-eroded types, decreased by 17.0–35.5% as compared to the standard, which corresponds to satisfactory and pre-crisis condition, in medium eroded soils - by 32.2–63.4%, the degree of degradation is estimated as pre-crisis, crisis and catastrophic. In the highly eroded types, the thickness of the soil layer decreased by 47.8–74.9%, which indicates a high and very high (crisis) level of profile degradation. Erosion soil loss compared to the standard in weakly eroded podzolic chernozems is 1245.0-3744.6 t/ha, in medium eroded soil – 6762.4-8321.0 t/ha, and in highly-eroded soil – 8874.0-11595.0 t/ha. It has been established that chernozems as a result of water erosion from one hectare of weakly eroded podzolic, on average 39.47–118.70 tons of humus was eroded, 214.36-237.98 tons was eroded from medium eroded ones, and 240.49-267.84 tons from highly eroded soils. The average annual loss of humus is from 0.23-0.68 t/ha in weakly eroded types to 1.37-1.53 t/ha in highly eroded podzolic chernozems. Erosion processes result in deterioration of physical properties of soils. The use of dense and low-humus plumage horizons for plowing causes compaction of soils and deterioration of structure. Minimization of podzolic chernozem profile degradation in Male Polissia is possible provided that the system of anti-erosion measures, especially the conservation of highly eroded soils, the introduction of soil protection methods for soil cultivation, optimization of the structure of crop areas, ban on cultivated crops on slopes more than 3° steep, consolidation of small areas in larger arrays are applied. It is also necessary to introduce a system of basic and crisis monitoring over the condition of eroded soils. Key words: Male Polissia, podzolic chernozems, profile degradation, water erosion, humus, soil conservation.

scholarly journals Perda de Solo no Alto Curso das Bacias Hidrográficas dos Ribeirões Taquaruçu Grande e Taquaruçuzinho, Palmas (TO)

2021 ◽  
Vol 14 (1) ◽  
pp. 332
Author(s):  
Marcelo Divino Ribeiro Pereira ◽  
João Batista Pereira Cabral
Keyword(s):  
Soil Loss ◽  
Environmental Planning ◽  
Water Erosion ◽  
Integrated Analysis ◽  
Conservation Practices ◽  
Erosion Processes ◽  
Food And Agriculture ◽  
Food And Agriculture Organization ◽  
1960S And 1970S ◽  
The 1960S

A aplicação de modelos matemáticos na análise da perda de solo em bacias hidrográficas ganhou atenção, nos anos de 1960 e 1970, a partir da análise integrada da paisagem. Nesse contexto, a Equação Universal de Perda de Solo (EUPS) se destaca como um dos modelos mais utilizados mundialmente no conhecimento dos processos erosivos e no planejamento ambiental. Diante disso, este estudo tem por objetivo estimar as perdas de solos nas bacias hidrográficas dos córregos Macacão e Mutum, localizadas no município de Palmas (TO). Os resultados demonstram que as áreas estudadas sofreram com um alto poder de erosividade (R) ao longo dos anos 1995 a 2019, com valores entre 12,188 a 12,319 t/ha MJ-1 mm-1. Quanto ao solo, o Neossolo Litólico Distrófico (RLD) apresenta o maior valor de erodibilidade (K), 0,049 t/ha MJ-1 mm-1.No que tange ao fator topográfico (LS), cerca de 80% das áreas das bacias mostram valores de LS considerados baixos, situados entre 0,029 a 1,86, e 1,86 a 4,30. Já para o fator relacionado ao uso e manejo do solo e às práticas conservacionistas (CP), as áreas mais suscetíveis ao processo erosional diz respeito às classes de pastagem e queimadas. Desta forma, observa-se que as classes de erosão hídrica nas bacias são consideradas moderada, grave e muito grave pelo estudo da Food and Agriculture Organization (FAO) de 1984, ainda que represente somente 19% da área da bacia do Macacão e 24% da bacia do Córrego Mutum.  Loss of soil in the high course of hydrographic basins of ribeirões Taquaruçu Grande and Taquaruçuzinho, Palmas (TO) A B S T R A C TThe application of mathematical models in the analysis of soil loss in watersheds gained attention in the 1960s and 1970s from the integrated analysis of the landscape. In this context, the Universal Soil Loss Equation (EUPS) stood out as one of the most used models worldwide in the knowledge of erosion processes and in environmental planning. Therefore, this study aims to estimate soil losses in the hydrographic basins of the Macacão and Mutum streams, located in the municipality of Palmas (TO). The results demonstrate that the studied areas suffered from a high power of erosivity (R) over the years 1995 to 2019, with values between 12.188 to 12.319 t/ha MJ-1 mm-1. As for the soil, the Neosol Litolic Dystrophic (RLD) has the highest erodibility value (K), 0.049 t/ha MJ-1 mm-1. Regarding the topographic factor (LS), about 80% of the basin areas show LS values considered low, situated between 0.029 to 1.86, and 1.86 to 4.30. As for the factor related to the use and management of soil and conservation practices (CP), the areas most susceptible to the erosion process concern the grazing and burning classes. Thus, it is observed that the classes of water erosion in the basins are considered moderate, severe and very severe by the Food and Agriculture Organization (FAO) study of 1984, although it represents only 19% of the area of the Macacão basin and 24% of the Mutum Stream basin.Keywords: Water erosion. Hydrographic basin. USLE. 

Ravinas: processo de formação e desenvolvimento

1997 ◽  
Vol 20 ◽  
pp. 9-26
Author(s):  
Antonio José Teixeira Guerra
Keyword(s):  
Soil Erosion ◽  
Laboratory Experiments ◽  
Agricultural Soils ◽  
Erosion Process ◽  
Erosion Processes

The present paper concerns rill initiation and evolution, taking into account its role on the erosion process. Therefore, several aspects of the process are developed, such as: the process itself, evidences of the process, through field and laboratory experiments, the importance of the models, the consequences to agricultural soils and the conectivity with other soil erosion processes.

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