Biochar effects on soil water infiltration and erosion under seal formation conditions: rainfall simulation experiment

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• 作者：Vikas Abrol ; Meni Ben-Hur ; Frank G. A. Verheijen…
• 关键词：Crust ; Biochar ; Infiltration ; Rainfall ; Seal ; Soil loss
• 刊名：Journal of Soils and Sediments
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：16
• 期：12
• 页码：2709-2719
• 全文大小：770 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Soil Science and Conservation
  Environment
  Environmental Physics
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1614-7480
• 卷排序：16

文摘

PurposeSoil amendment with biochar can result in decreased bulk density and soil penetration resistance, and increased water-holding capacity. We hypothesized that adding biochar could moderate the reductions in infiltration rates (IR) that occur during high-intensity rainstorms in seal-prone soils, and hence result in reduced runoff and erosion rates. The objectives were to (i) evaluate biochar potential to improve infiltration and control soil erosion, and (ii) investigate the mechanisms by which biochar influences infiltration rate and soil loss.