Abstract
Viola orientalis, an endangered plant specie, generally grows in ando soils that is developed in grass-land environments; therefore, grassland maintenance is a prerequisite for the survival of this plant species. The life cycle of V. orientalis is spring ephemerals. Controlled burning is necessary for the perspective of grassland maintenance, along with the burning of litter, in order to secure the light factor. The Miscanthus type grassland is an example of a habitat environment of V. orientalis in a maintained grassland. It has deep surface soil, which is covered with a variety of plants species. At the landslide sites, some parts of a 14-years-old sliding surface function as a habitat. For V. orientalis, the effective method in greening of sliding surface is to recover the Miscanthus type grassland with deep ando soils.
