Design of Buffer Zones in Loess Arrays as the Basis for Landscape Ecology
The article deals with the problem of the so-called buffer zones (corridors) adjacent to the structures erected on the loess arrays which are most prevalent and are of the maximum power in the North-West of China. The complexity of the construction and operation of structures in these areas take place not only due to the severely dissected relief of the terrain, but also due to the wide development of dangerous geological phenomena: pseudo-karst, erosion, landslides, subsidence, flooding, etc. The main function of buffer zones is to minimize the negative impact of the structure on the loess array and provide the stable operation conditions. Main variants of the construction and location of the buffer zones depending on the landscape conditions are presented. Reasons for developing negative geological processes in non-compacted loess are shown. The buffer zones regulate hydro-geological processes, strengthen the slopes, protect the roads, etc. Besides, they stimulate the change in the monotonic landscape design, improve its decorativeness and open the prospects for developing the tourism.