Spatial and temporal analysis of natural resources degradation in the Likodra River watershed
Soil is an important natural resource whose proper use requires a good knowledge of all endogenous and exogenous factors that cause different types of degradation. Erosion is one of the forms of soil degradation. Erosion processes are characterized by a distinctive complexity and the factor...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | srp |
| Published: |
Faculty of Forestry, Belgrade
2016-01-01
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| Series: | Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0353-4537/2016/0353-45371614169P.pdf |
| Summary: | Soil is an important natural resource whose proper use requires a good
knowledge of all endogenous and exogenous factors that cause different types
of degradation. Erosion is one of the forms of soil degradation. Erosion
processes are characterized by a distinctive complexity and the factors
affecting them are dynamics and change in space and time. A complex system
degradation requires a multidisciplinary approach to the use of modern
methods and techniques. Today, a large number of models are available for the
assessment of soil loss through erosion as well as the levels of risk from
erosion, today. Most of these are based on the logics of GIS thanks to its
ability to sublimate heterogeneous information. In this paper, the analysis
of spatial and temporal degradation of natural resources is carried out in
the Likodra River watershed. The Likodra River is located in the northwestern
part of the Republic of Serbia, and is positioned in the municipality of
Krupanj. The main stream in the immediate vicinity of the town of Krupanj
formed from four small streams that have expressed torrential character (the
Bogoštica with the Kržava and the Čađavica with the Brštica). In May 2014,
the urban area and rural parts of the municipality Krupanj were affected by
catastrophic flash floods that resulted in the loss of human lives and
enormous material damage. Soil degradation in the study area was analyzed
using the Erosion Potential Method (EPM). The method is characterized by a
high degree of reliability for determining the intensity of erosion,
calculation of sediment yield and transport. The advantage of this method
compared to other methods its lower complexity in terms of quantity of input
parameters, simplicity and the possibility of application in GIS. In
addition, the method has the advantage of choice, because it was developed in
this area. The method is based on the analytical processing of data on
factors affecting erosion. As the erosion spatial phenomenon appears on the
map according to the classification on the basis of the calculated analytical
erosion coefficient (Z), which depends on the characteristics of the soil,
vegetation cover, relief and visible degree of erosion. By applying the
Erosion Potential Method (EPM) an erosion map has been developed, showing the
spatial distribution of erosion processes in the catchment area of the
Likodra River watershed. The erosion map provides an insight into the state
of erosion processes of different intensity and character. For the study
basin, all its visible manifestations are manifested in the medium
coefficient of erosion Zsr = 0.204. The current state of erosion was analyzed
in comparison with the situation in the original 1983 erosion map of FR
Serbia. |
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| ISSN: | 0353-4537 2217-8600 |