Landuse/ Landcover Dynamics and Erosion Susceptibility Analysis: A Case Study of Basso Werena Wereda
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Date
2008-07
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Addis Ababa Universty
Abstract
Landuse and Landcover changes between 1973 & 2000 and erosion susceptibility
analysis were conducted in Basso werena wereda of North shewa zone; Amhara
region, on an area of 1213 km2 using remote sensing and geographic information
system (GIS) with field verifications. Information is extracted from various Satellite
images of multidated Landsat images and different digital maps. In addition to these,
different metrological and other data s are used for the study.
Results from landcover change analysis show an increase in agriculture land from
28.96 % in 1973 to 49.98 % in 2000. The increase agriculture land was mainly at the
expense of the wood land and natural forest. On the contrary, natural forest and
wood land decreased from 12.19 % and 11.37 % in 1973 to 2.45 % and 0 % in 2000
respectively. Rate of landcover change and landcover conversion matrix clearly
showed the dynamics of the different cover classes over the study periods. The
result of erosion susceptibility analysis showed that around 35.61 % of the area is
highly susceptible, 35.93 % susceptible, 16.35 % moderately susceptible, 7.31 %
less susceptible and 4.80 % is very less susceptible to water erosion. The majority of
the area falls on highly susceptible and susceptible to erosion (71.54%). The
resultant erosion susceptibility map along with the landuse /landcover and structural
dynamics can serve local planners and scientists as a primary source of information
for natural resource management (NRM) of the study area.
Key words: GIS, RS, landuse /cover, Susceptibility model, Landuse structure,
Highland, Basso werena.
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Keywords
GIS, RS, landuse /cover, Susceptibility model, Landuse structure, Highland, Basso werena