Soil erosion characteristics of ditch banks during reclamation of a saline/sodic soil in a coastal region of China: Field investigation and rainfall simulation

Understanding soil erosion processes is essential for assessing the extent and causes of soil erosion and for planning soil conservation including those on the banks of excavated ditches. Based on a field investigation and laboratory rainfall simulation experiments, the soil erosion characteristics...

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Bibliographic Details
Published in:Catena (Giessen) 2014-10, Vol.121, p.176-185
Main Authors: She, Dongli, Fei, Yuanhang, Liu, Zhipeng, Liu, Dongdong, Shao, Guangcheng
Format: Article
Language:English
Subjects:
Bank erosion
Ditches
Hydraulic resistance
Overland flow
Rainfall
Runoff
Saline soil
Sediment concentration
Sediments
Slope gradients
Soil (material)
Soil erosion
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Summary:Understanding soil erosion processes is essential for assessing the extent and causes of soil erosion and for planning soil conservation including those on the banks of excavated ditches. Based on a field investigation and laboratory rainfall simulation experiments, the soil erosion characteristics of a saline/sodic soil undergoing reclamation that was exposed on irrigation/drainage ditch banks in a coastal region of China were investigated. Preliminary analyses of the data indicated that the soil erosion was more severe from the ditch banks in the coastal region than from those in other areas of China. The annual erosion loss from ditch banks in the most recently reclaimed farmland (2007) was 140kg/m2, but the erosion modulus decreased significantly (p
ISSN:0341-8162
1872-6887
DOI:10.1016/j.catena.2014.05.010