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首页> 外文期刊>Journal of Environment and Earth Science >Applications of Geoinformatics Technology in Land Use Land Cover Change Detection using Multi-Temporal Satellite Images: the Case of Mariamdehan tabia, Tigray Region, Northern Ethiopia
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Applications of Geoinformatics Technology in Land Use Land Cover Change Detection using Multi-Temporal Satellite Images: the Case of Mariamdehan tabia, Tigray Region, Northern Ethiopia

机译：地理信息技术在利用多时相卫星图像进行土地利用土地覆盖变化检测中的应用：以埃塞俄比亚北部提格雷地区的Mariamdehan tabia为例

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Land use and land cover change has become a central component in current strategies for managing natural resources and monitoring environmental changes. Remote Sensing (RS) and Geographic Information System (GIS) are now providing new tools for advanced Natural Resource Management and managing environmental changes. This study examines the use of Geoinformatics tools (GIS, GPS and Remote Sensing) to analyze land use land cover change over 31 years using Multi-temporal satellite images in the Maryamdehan tabia. Satellite image of the year 1984, 2005 and 2015 were collected from the USGS/glovis/ free satellite data provider website. Image classification was done using Arc Gis 10.2 environment and ground truthing was also taken using GPS tool for supervised image classification. Six main land use land cover classes were identified to see the changes among years. As a result, the total area of the tabia was 3646.49 hectare, from which in 1984, 40.691% covered by forest area, 26.15% by grass land, 10.81% by farm land, in 2005, 52.41% by settlement, 25.04% by forest area, 11.71% by farm land, and in 2015, 35.14% was covered by forest land, 30.04% by Settlement, 14.74% by Farm land. Regarding soil and water conservation practices Questioner was developed and 90% of the farmers revealed that in 2015 due to the introduction of different soil and water conservation structures soil erosion problem significantly decreased on their farm lands. The main driving forces of the land use land cover changes in this tabia were increasing population number, expansion of agricultural activity, settlement, and plantation practices. Currently 35% of the tabia covers by forest area, so this plays its own role in minimizing soil erosion, soil stability and as option in minimizing climate change impacts through carbon sequestration process.
机译：土地使用和土地覆被变化已成为当前管理自然资源和监测环境变化战略的重要组成部分。遥感（RS）和地理信息系统（GIS）现在提供了用于高级自然资源管理和管理环境变化的新工具。这项研究考察了地理信息工具（GIS，GPS和遥感）的使用，以使用Maryamdehan tabia中的多时相卫星图像来分析31年内土地利用的土地覆盖变化。从USGS / glovis /免费卫星数据提供商网站收集了1984、2005和2015年的卫星图像。使用Arc Gis 10.2环境进行图像分类，还使用GPS工具对地面进行实况监测，以进行监督图像分类。确定了六种主要的土地利用土地覆盖类别，以观察年份之间的变化。结果，烟叶的总面积为3646.49公顷，其中1984年，其中森林面积占40.691％，草地占26.15％，农田占10.81％，2005年，居民区占52.41％，森林占25.04％。面积，占耕地面积的11.71％，2015年，林地占35.14％，定居点占30.04％，耕地占14.74％。关于水土保持措施，发问者得到发展，有90％的农民透露，由于采用了不同的水土保持结构，2015年耕地的水土流失问题大大减少了。该地区的土地利用土地覆盖变化的主要驱动力是人口数量的增加，农业活动的扩大，定居和种植方式的变化。目前，有35％的烟叶被森林覆盖，因此它在减少土壤侵蚀，土壤稳定性以及通过碳固存过程减少气候变化影响方面发挥了自己的作用。

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