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首页> 外文期刊>Catena: An Interdisciplinary Journal of Soil Science Hydrology-Geomorphology Focusing on Geoecology and Landscape Evolution >Monitoring land degradation using remote sensing and GIS techniques in an area of the middle Nile Delta, Egypt.
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Monitoring land degradation using remote sensing and GIS techniques in an area of the middle Nile Delta, Egypt.

机译：使用遥感和GIS技术在埃及尼罗河三角洲中部地区监测土地退化。

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Detecting soil degradation and recognizing its various types is a necessity to take the practical measures for combating it as well as conserving and keeping the agricultural soil healthy. The present study aims at monitoring soil degradation process within the last four decades in the middle part of Nile Delta. To fulfill this objective, Landsat ETM images and digital elevation model (DEM) are used to produce the physiographic map of the studied area at the landform level. Land degradation rate, causative factors, degree, and land degradation status in the study area were assessed using GIS techniques. The results indicate that the most active land degradation factors in the studied area are; water logging, salinization, alkalinization and compaction. The main causative factors of human induced land degradation types in the area are excessive irrigation, human intervention in natural drainage, improperly time use of heavy machinery and the absence of conservation measurements.Digital Object Identifier http://dx.doi.org/10.1016/j.catena.2011.05.023
机译：检测土壤退化并认识到土壤退化的各种类型，是采取实际措施应对土壤退化以及保护和保持农业土壤健康的必要条件。本研究旨在监测尼罗河三角洲中部近四十年内的土壤退化过程。为了实现此目标，Landsat ETM图像和数字高程模型（DEM）用于在地形水平上生成研究区域的地貌图。使用GIS技术评估了研究区的土地退化率，成因，程度和土地退化状况。结果表明，研究区最活跃的土地退化因子为：渍水，盐化，碱化和压实。该地区人为引起的土地退化类型的主要原因是过度灌溉，人为干预自然排水，重型机械使用时间不正确以及缺乏保护措施。数字对象标识符http://dx.doi.org/10.1016 /j.catena.2011.05.023

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