Monitoring Soil Erosion in the Souss Basin, Morocco, with a multiscale Object-based Remote Sensing Approach using UAV and Satellite Data
Monitoring Soil Erosion in the Souss Basin, Morocco, with a multiscale Object-based Remote Sensing Approach using UAV and Satellite Data
复制标题
利用无人机和卫星数据采用多尺度基于对象的遥感方法监测摩洛哥苏斯盆地的土壤侵蚀
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
A. A. Hssaine
中科院分区：
文献类型：
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作者：
S. d'Oleire;I. Marzolff;K. Peter;J. Ries;A. A. Hssaine
本文提出了一种多尺度方法来检测和监测摩洛哥Souss盆地塔鲁丹市周围农业工业区的土壤侵蚀现象(即沟壑侵蚀)。研究区属半干旱区，年平均降水量为200毫米。缺水、高人口动态和改变土地利用，转向大面积灌溉农业，对可持续性构成了许多威胁。农业工业生产单季柑橘水果和蔬菜，主要销往欧洲市场。受沟壑侵蚀严重影响的荒地地区与农业区和居民区接壤。为了抵消土地的大量损失，人们试图采取土地平整措施，为种植园和温室创造空间。为了制定可持续的办法来限制沟壑的扩大，对沟壑系统的探测和监测是至关重要的。使用无人机(UAV)拍摄小幅面航空照片(SFAP)对特定的沟壑地点进行监测。这使得能够对沟渠的实际大小进行极高分辨率的分析(SFAP分辨率：2-10厘米)，并对其生长进行详细的持续监测。利用Quickbird卫星数据(分辨率：60厘米)在更大范围内转移该方法，从而有可能对塔鲁丹特市周围的整个地区(面积范围：约350平方公里)进行大规模分析。研究结果将揭示沟壑生长和农工管理之间的可能关系，甚至可能说明进一步的相互依存关系。主要目标是确定由于非可持续土地利用而具有高沟壑侵蚀风险的地区，并为研究地区制定缓解战略。
This article presents a multiscale approach for detecting and monitoring soil erosion phenomena (i.e. gully erosion) in the agro-industrial area around the city of Taroudannt, Souss basin, Morocco. The study area is characterized as semi-arid with an annual average precipitation of 200 mm. Water scarcity, high population dynamics and changing land use towards huge areas of irrigation farming present numerous threats to sustainability. The agro-industry produces citrus fruits and vegetables in monocropping, mainly for the European market. Badland areas strongly affected by gully erosion border the agricultural areas as well as residential areas. To counteract the significant loss of land, land-leveling measures are attempted to create space for plantations and greenhouses. In order to develop sustainable approaches to limit gully growth the detection and monitoring of gully systems is fundamental. Specific gully sites are monitored with unmanned aerial vehicle (UAV) taking small-format aerial photographs (SFAP). This enables extremely high-resolution analysis (SFAP resolution: 2-10 cm) of the actual size of the gully channels as well as a detailed continued surveillance of their growth. Transferring the methodology on a larger scale using Quickbird satellite data (resolution: 60 cm) leads to the possibility of a large-scale analysis of the whole area around the city of Taroudannt (Area extent: ca. 350 km²). The results will then reveal possible relationships of gully growth and agro-industrial management and may even illustrate further interdependencies. The main objective is the identification of areas with high gully-erosion risk due to non-sustainable land use and the development of mitigation strategies for the study area.
小型便携式降雨模拟器与风雨组合模拟器的降雨特性比较
DOI：
10.1127/0372-8854/2011/0055s3-0054
发表时间：
2011
期刊：
影响因子：
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作者：
FISTER;ISERLOH;SCHMIDT
通讯作者：
SCHMIDT