Soil erosion in gully catchments affected by land-levelling measures in the Souss Basin, Morocco, analysed by rainfall simulation and UAV remote sensing data
Soil erosion in gully catchments affected by land-levelling measures in the Souss Basin, Morocco, analysed by rainfall simulation and UAV remote sensing data
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通过降雨模拟和无人机遥感数据分析摩洛哥苏斯盆地土地平整措施影响的沟渠流域土壤侵蚀
DOI:
10.1016/j.catena.2013.09.004
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发表时间:
2014
期刊:
影响因子:
6.2
通讯作者:
Aït Hssaïne
中科院分区:
文献类型:
--
作者:
d'Oleire-Oltmanns;Marzolff;Aït Hssaïne
Land-levelling measures are widely used in the Souss valley, South Morocco, for the implementation of land use change. However, their impact on soil erosion in this region is unclear. This paper presents the approach of combining punctual process analysis through experimental rainfall simulation and gully mapping as well as volume quantification analysing on a local scale using unmanned aerial vehicle (UAV) remote sensing data. Thus, the influence of the impacts of land levelling in the catchment area on the linear soil erosion by gullies can be elucidated. Soil surface characteristics, modified by land levelling, lead to higher runoff generation and sediment production. Mean runoff coefficients from 54% to 58% are found in levelled study sites, and 38% to 47% are found in undisturbed areas. Mean sediment loads reach 48.6 g m− 2to 81 g m− 2under the influence of levelling, but only 9.3 g m− 2to 23.7 g m− 2without it. Quantification of soil erosion by UAV data showed that a gully in a levelled study site eroded about 720 m3of soil within only one rain period. The surface of the catchment area was lowered 0.054 m on average due to land levelling, whereas in study sites without land levelling, the monitoring did not show significant differences of shape and extent of the gullies at two different points in time. The strong influence of land levelling can be documented with the connection of these two methods. A clear amplification of soil erosion is induced by land-levelling measures.
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影响因子:
3.9
作者:
A. A. Hssaine;D. Bridgland
通讯作者:
D. Bridgland
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
J. Ries;M. Langer
通讯作者:
M. Langer
影响因子:
6.5
作者:
J. Ries;M. Seeger;T. Iserloh;S. Wistorf;W. Fister
通讯作者:
J. Ries;M. Seeger;T. Iserloh;S. Wistorf;W. Fister
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
S. d'Oleire;I. Marzolff;K. Peter;J. Ries;A. A. Hssaine
通讯作者:
A. A. Hssaine
影响因子:
5
作者:
d'Oleire-Oltmanns, Sebastian;Marzolff, Irene;Ries, Johannes B.
通讯作者:
Ries, Johannes B.