Analysis method for exploring mixing rate change characteristics of density flow in vegetation area

The invention provides an analysis method for exploring mixing rate change characteristics of density flow in a vegetation area. The method comprises the following steps: manufacturing a density flowtest device for exploring mixing rate change characteristics of density flow in a vegetation area; acquiring data, measuring topographic data and density flow parameters of the target research area, and establishing a Cartesian coordinate system; performing parameter determination, measuring the length, the width and the height of a vegetation group and the diameter and the number of plants in thetest; establishing Cartesian coordinate system, measuring a density current head position and a density current head speed; calculating to obtain the side area of the density flow inside the vegetation and the side area outside the vegetation; model calculation: substituting the parameter data into a mixing rate calculation model of the density flow in the vegetation area to obtain the change characteristics of the mixing