Use Supervised Image Classification Technique to Monitor and Analyze Changes in Land Cover in North-east Of Libya
Keywords:
Supervised Image Classification, Remote sensing, Vegetation coverAbstract
The natural vegetation of Jabal Akhdar is of environmental and economic importance, as it is the only area with evergreen forests in Libya, and thus the area is the focus of agricultural activity and provides products such as vegetables, fruits and livestock to local towns in northeastern Libya.
Over the last few decades, the Al Jabal Al Akhdar Mountains has experienced changes in land cover, according to the many of local studies, which were confirmed that, the presence of a decline in vegetation cover and an increase the desertification rates on the southern slopes of the mountains. These changes represent a threat overall region, because of their negative effects on the natural ecosystems of the region. Therefore, this study aimed to monitor and evaluate the land cover of the region, including studying the natural and human ecosystems, which will be assess to know the size and area of these systems and their changes during the period from 1972 to 2020.
By using remote sensing technology to evaluate the vegetation cover using Landsat satellite images (1972, 1978) 1987, 1999, 2001, 2003, 2013, 2020), where the Supervised Image Classification technique will be used to classify human activities and calculate changes in them during the study period
Overall conclusion was, obtained from the assessment of vegetation change and desertification is the presence of significant changes and decreases in the area of natural vegetation cover and an increase in the area of areas covered by human activities, such as cities and agricultural areas. Nevertheless, the results of assessing vegetation cover and land cover change and patterns of changes are major steps towards filling in of the information gap and creation of a database for monitoring land cover in the study area. This effort will contribute, facilitate decision making on mitigating the impacts of land use dynamics on the land cover as well as provide a basis for future researches.
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