Title: Soil and Water Conservation Effects of Ecological Bag Mulching on Loose Media Slopes in Quarries
Abstract: The major objective of this study was to understand the effects of ecological bag mulching on soil and water conservation on the loose media slopes in quarries.Based on the observed runoff data in ten rainfall events in 2011,the authors studied the changes of runoff and sediment yields under three rainfall intensities and four types of slopes with mulching of ecological bags in the experimental plots,located in Zhoukoudian County of Fangshan District.It was found that ecological bag mulching reduced significantly water losses and soil erosion;with the different rainfall intensity and slope,the observed runoff depth and sediment yield of the plots with ecological bag mulching were 23.5%~25.2% and 53.1%~ 60.6% lower than that of the control plot,respectively.The effects of reducing runoff and soil loss were most notable with a rainfall intensity of 12.05 mm/h and slope of 35°.The regression analysis indicated that runoff and sediment yield correlated closely with rainfall intensity and slope in general,while no corresponding relation were found between runoff depth and sediment yield in different rainfall intensity,vegetation and slope conditions.The mulching technology with ecological bags was one of the important measures in controlling soil erosion.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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