Morgan和Duzant（2008年）对“用于评估作物和植被覆盖对土壤侵蚀影响的改良MMF（Morgan-Morgan-Finney）模型”的评论
Commentary on 'Modified MMF (Morgan-Morgan-Finney) model for evaluating effects of crops and vegetation cover on soil erosion' by Morgan and Duzant (2008)
摘要：
Morgan-Morgan-Finney（MMF）模型是一种广泛应用的半物理土壤侵蚀模型，已在不同土地利用类型和气候区域得到验证。该模型的最新版本，修改的MMF（MMMF）模型，通过对原始模型的几个修改改进了其概念物理表示。然而，MMMF模型有三个问题需要修正：1）有效降雨方程，2）间流方程，3）输送能力方程的不适当归一化C因子。在这篇评论中，我们确定并纠正MMMF模型的问题部分，这应该会导致更准确的径流和土壤侵蚀率的估计。
英文摘要：
The Morgan-Morgan-Finney (MMF) model is a widely used semi-physically based soil erosion model that has been tested and validated in various land use types and climatic regions. The latest version of the model, the modified MMF (MMMF) model, improved its conceptual physical representations through several modifications of the original model. However, the MMMF model has three problematic parts to be corrected: 1) the effective rainfall equation, 2) the interflow equation, and 3) the improperly normalized C-factor of the transport capacity equation. In this commentary, we identify and correct the problematic parts of the MMMF model, which should result in more accurate estimations of runoff and soil erosion rates.
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