A Discussion On Spatial Arrangement of Vegetation of Artificial Construction and the Main Construction Techniques

Based on the analysis of ecological condition in Yan'an city (in the area, which is about 1 100 km 2) the authors had discussed on the general direction of constructing vegetation in hilly region of Loess Plateau from botanic sorts, space arrangement and main constructive technique. At last, the idea of imitating nature vegetation in the constructing of artificial vegetation had been put forwarded which could be very useful in the forthcoming macro scale of the ecological restoration in Loess Plateau.