- Jul 19 2022
- bowtiemrh

I am wondering how to properly set the vegetation density in Mflow_02. The manual says that you can choose between specifying either the vegetation density or the vegetation height and permeability coefficients.

When selecting the vegetation density option, how can I adjust the drag coefficient of the vegetation?

When selecting the vegetation height and permeability coefficient, how can I estimate the permeability coefficients for different vegetation. ie. what units are the permeability coefficient in, or what is a ratio of?

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For the setting of vegetation resistance, refer to the references and set based on the results of field surveys.

The unit of permeability coefficient is m/s.

The vegetation density should be based on the “diameter/center spacing” of the trees.

the plant’s average density in the study area requires adding the density figures for each sample plot to get the total number of plants counted. Divide the total number by the number of sample plots.