Abstract The G2 erosion model: An algorithm for month-time step assessments
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The G2 erosion model: An algorithm for month-time step assessments

机译：G2侵蚀模型：一种用于月时间步长评估的算法

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AbstractA detailed description of the G2 erosion model is presented, in order to support potential users. G2 is a complete, quantitative algorithm for mapping soil loss and sediment yield rates on month-time intervals. G2 has been designed to run in a GIS environment, taking input from geodatabases available by European or other international institutions. G2 adopts fundamental equations from the Revised Universal Soil Loss Equation (RUSLE) and the Erosion Potential Method (EPM), especially for rainfall erosivity, soil erodibility, and sediment delivery ratio. However, it has developed its own equations and matrices for the vegetation cover and management factor and the effect of landscape alterations on erosion. Provision of month-time step assessments is expected to improve understanding of erosion processes, especially in relation to land uses and climate change. In parallel, G2 has full potential to decision-making support with standardised maps on a regular basis. Geospatial layers of rainfall erosivity, soil erodibility, and terrain influence, recently developed by the Joint Research Centre (JRC) on a European or global scale, will further facilitate applications of G2.Highlights•G2 is a soil erosion model for developing monthly erosion maps at regional scale.•G2 enhances the spatio-temporal variability of cover management and erosivity factors.•The V-factor models the impact of vegetation cover, land use and imperviousness layer.•G2 uses data from ESDAC, LUCAS, COPERNICUS, CORINE, SENTINEL and EU-DEM databases.•G2 has been applied in Strymonas Catchment, Crete, Cyprus and Albania catchments.
机译： 摘要 提供了G2侵蚀模型的详细说明，以支持潜在的用户。 G2是一个完整的定量算法，用于按月时间间隔绘制土壤流失和沉积物产率的地图。 G2旨在在GIS环境中运行，并从欧洲或其他国际机构提供的地理数据库中获取输入。 G2采用了经修订的通用土壤流失方程（RUSLE）和侵蚀潜力方法（EPM）的基本方程，特别是在降雨侵蚀力，土壤易蚀性和沉积物输送比方面。但是，它已经为植被覆盖率和管理因子以及景观变化对侵蚀的影响开发了自己的方程式和矩阵。预计提供每月时间的分步评估可以增进对侵蚀过程的了解，尤其是在土地利用和气候变化方面。同时，G2有充分的潜力定期提供标准化地图的决策支持。联合研究中心（JRC）最近在欧洲或全球范围内开发了降雨侵蚀力，土壤侵蚀性和地形影响的地理空间层，这将进一步促进G2的应用。 突出显示 • G2是一种土壤侵蚀模型，用于在区域范围内绘制月度侵蚀图。 • G2增强了时空变异性 • V因子可以模拟植被​​覆盖，土地利用和防渗层的影响。 • G2使用来自ESDAC，LUCAS，哥白尼，CORINE，SENTINEL和EU-DEM数据库的数据。 • G2均已应用于斯特里莫纳斯流域，克里特岛，塞浦路斯和阿尔巴尼亚流域。

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