I have not seen peatlands as very erodible, unless perhaps associated with streams with sufficient velocity and depth to move, dislodge, entrench to mineral soils or float peat.  Do you have an example, any pictures of this erosion or descriptions of conditions where this erosion is occurring?

To : Mr Hansen,

Thank you very much for your quick respond.

I enclosed a conference paper which describe about the erodible peatlands that potentially will be transported.It was started a sliding in peatland beach because of mismanagement of land use and land cover in land area. 

Warm regards

Wow!  I think you addressed the drainage, drying and then expansion during periods of wetness making it unstable.  From appearances, the cracks remind me of road fill materials that crack due to saturation, develop a crack and perhaps drop, before the eventual landslide.  The crack becomes a place where even more water gathers and overloads the slope, resulting in slope failure.  However, I have to say that this peat failure is outside of my experience, but the mechanisms may be similar. The cracking of peat, expansion and delivery of peat, does it have any similarities to gully type delivery, or just slope failure, I did not see obvious channels that  were delivering peat, so I would guess mass failure, due to overloading with water and inability of the material to support its weight.  Does the ocean undercut the peat banks that could lead to peat slope failure?  It is not uncommon if it is a slope failure that changing vegetation from deep rooted species and perhaps a degree of disturbance or cultivation will alter the stability.