Block Mosaic Mixed Forest Management Model on the Pinus tabulaeformis,Platycladus orientalis and Quercus spp Forests in Beijing

The Experimental Farm of Beijing Forestry University in 1952 started large numbers of relevant researches on the tree species selection and matching species with site in the suburbs of Beijing.The experimental woods have become the block mosaic mixed forest that is composed of Pinus tabulaeformis,Platycladus orientalis,Quercus spp.and other conifers and broad-leaved trees.Based on the investigation and systemic analysis of the block mosaic mixed forests,the following remarkable characteristics can be drawn: they are is in accordance with the zonal vegetation and the progressive succession,incarnating the theory of close-to-nature forestry and guaranting the sustainable management for the forests. Moreover the composed block mosaic mixed construction is in accordance with the demand of developing Beijing non-commercial forests around Beijing.The relative management technology is proposed.