scholarly journals The Influence of Topographical Factor Calculation on the Estimation of Water Erosion Intensity UsingGeographical Information Systems

2014 ◽  
Author(s):  
Natalia Junakova ◽  
Zuzana Klescova
Keyword(s):  
Information Systems ◽  
Water Erosion ◽  
Topographical Factor ◽  
Erosion Intensity

scholarly journals REVIEW AND COMPARISON OF WATER EROSION INTENSITY IN THE WESTERN BALKAN AND EU COUNTRIES

2017 ◽  
Vol 36 (1) ◽  
Author(s):  
Ivan Blinkov
Keyword(s):  
Methodological Approach ◽  
Secondary Data ◽  
Water Erosion ◽  
European Level ◽  
Recent Period ◽  
Erosion Risk ◽  
Balkan Countries ◽  
Gis Environment ◽  
National Databases ◽  
Erosion Intensity

The south and southeast region of Europe is significantly prone to water erosion. In parts of the region, erosion has reached a stage of irreversibility and in some places erosion has practically ceased because there is no soil left. In the recent period several models and approaches in a GIS environment were developed using available database for erosion factors on the European level on which data about water erosion in Western Balkan countries is missing. Sci-entists in the Western Balkan countries faced with the erosion problem for years, developed own models or prepared various erosion risk maps using national databases. The aim of this study is to compare results of water erosion inten-sity in the Western Balkan countries using models on wider level (European maps) and national researches. The basic methodological approach in this paper is an analysis of secondary data, using the method of "content analysis" of various data sources. Inductive and deductive qualitative analyses were used and finally the method of "comparative analysis" is applied, too. Through the analysis of national researches it was estimated that erosion intensity in the WB countries is 656 m3/ha (similar to 6.56 t/ha) and the total amount of annual produced erosive material is 373.8·106 m3. The most erosive countries in Europe are Albania and Montenegro where mean annual intensity of erosion is > 10 t/ha. Macedonia together with Italy, Portugal, Slovenia and Romania is in the second group of countries, where ero-sion intensity is 5–10 t/ha.

scholarly journals The Balkans - the most erosive part of Europe?

2015 ◽  
pp. 9-20 ◽  
Author(s):  
Ivan Blinkov
Keyword(s):  
Soil Erosion ◽  
Methodological Approach ◽  
Secondary Data ◽  
Water Erosion ◽  
Geological Time ◽  
The Balkans ◽  
Balkan Countries ◽  
The Mean ◽  
Soil Erosion By Water ◽  
Erosion Intensity

Soil erosion has been occurring over the geological time. Inappropriate human activities accelerate this process. Soil erosion by water is a widespread problem throughout Europe. The South and Southeast regions of Europe are significantly prone to water erosion. In parts of the region, erosion has reached a stage of irreversibility and in some places erosion has practically ceased because there is no soil left. Scientists from the Balkan countries faced with the erosion problem for years, paid significant attention to solving problems with erosion. The aim of this study is to compare the results of water erosion intensity in the Balkan countries with other European countries. The basic methodological approach in this paper is an analysis of secondary data, using the method of ?content analyses? of various data sources. Inductive and deductive qualitative analysis was used and finally the method of ?comparative analysis? is applied too. Through the analysis of national researches, it was estimated that erosion intensity in Balkan countries is 548 m3km-2 (similar to 5.48 tha-1) and the total amount of annual produced erosive material is 419.9 *106 m3. The mean European average annual erosion intensity is 3.13tha-1. The most erosive countries in Europe are the Balkan countries, Albania and Montenegro where the mean annual intensity of erosion is > 10 tha-1.

scholarly journals A DETERMINATION OF AREA OF POTENTIAL EROSION BY GEOGRAPHIC INFORMATION SYSTEMS

2007 ◽  
Vol 15 (3) ◽  
pp. 144-152 ◽  
Author(s):  
Peter Šurda ◽  
Ivan Šimonides ◽  
Jaroslav Antal
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Soil Loss ◽  
Agricultural Land ◽  
Slovak Republic ◽  
Water Erosion ◽  
Geographic Information ◽  
Limit Values ◽  
Area Of Interest

Accelerated water erosion is the major problem of agricultural soils all over the world and also in the Slovak Republic. Accelerated erosion occurs in 55 % of agricultural land. It belongs to physical degradation of fertile land, and the whole process is irreversible. Therefore, it is very important to localize the presence of accelerated erosion and apply the basic principles of soil erosion control. Geographic information systems (GIS) are an effective tool for various environmental analyses, so it can also be succesfully used for determination of potential erosion intensity. The aim of this work was to create a map of domain areas that describes potential water erosion. As an area of interest the cadastral territory of Topolcianky in the Slovak Republic was selected. For this purpose the GIS software Arcview from ESRI was used. Water erosion process was modelled by universal soil loss equation (USLE) which computes an average annual soil loss. The limit values of acceptable intensity of soil loss are defined in the Collection of Laws of the Slovak Republic (Act No 220/2004 Coll). The final result of this work is a map that divides the domain area according to potential annual soil loss into several categories. In this case the domain area was divided into four categories. The first category, named slightly threatened soil, had 620,05 ha of agricultural land (77,48 per cent of the total agricultural land of domain area). The second category, called averagely threatened soil, had 106,56 (13,32 per cent of the total agricultural land). The third category (intensively threatened soil) had 70,91 ha (8,86 per cent of the total agricultural land) and finally the fourth category (very intensively threatened soil) had 2,74 ha (0,34 per cent of the total agricultural land).

scholarly journals Chemical erosion intensity in the Nisava catchments

2002 ◽  
Vol 82 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Predrag Manojlovic
Keyword(s):  
Water Erosion ◽  
Chemical Erosion ◽  
Geographical Characteristics ◽  
Erosion Intensity

The Nisava catchment comprehends the area of 4068 km2. There are differences in erosion intensity due to different physical-geographical characteristics of that area. Mechanical water erosion in the Nisava catchment is 302,4 m3/km2/yr and chemical erosion is 67,2 t/km2/yr. Space differences are large (47,1-115.5 t/km2/yr) and are mostly determined by hydrological and lithological characteristics of that area.

scholarly journals Vulnerability of soils in the watershed of Wadi El Hammam to water erosion (Algeria)

2015 ◽  
Vol 24 (1) ◽  
pp. 3-10 ◽  
Author(s):  
Mohamed Gliz ◽  
Boualem Remini ◽  
Djamel Anteur ◽  
Mohammed Makhlouf
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Information Systems ◽  
Geographical Information Systems ◽  
Water Erosion ◽  
Geographical Information ◽  
North West ◽  
The North ◽  
Control Erosion ◽  
Reference Document

Abstract Located in the north west of Algeria, the watershed of Wadi El Hammam is threatened by water erosion that has resulted the silting of reservoirs at cascade: Ouizert, Bouhanifia and Fergoug. The objective of this study is to develop a methodology using remote sensing and geographical information systems (GIS) to map the zones presenting sensibility of water erosion in this watershed. It aims to produce a sensibility map that can be used as a reference document for planners. The methodology presented consists of three factors that control erosion: the slope, the friability material and the land use, which were integrated into a GIS. The derived erosion sensibility map shows three areas of vulnerability to water erosion: low, medium and high. The area of high vulnerability corresponds to sub-basin of Fergoug.

Geographical Information Systems in Archaeology

2006 ◽  
Author(s):  
James Conolly ◽  
Mark Lake
Keyword(s):  
Information Systems ◽  
Geographical Information Systems ◽  
Geographical Information

Cost Containment in Information Systems

1984 ◽  
Vol 1 (1) ◽  
pp. 175-185
Author(s):  
Michael E. D. Koenig
Keyword(s):  
Information Systems ◽  
Cost Containment
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