北京低山油松林、侧柏林、栎林块状镶嵌混交经营模式的研究

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

北京林业大学试验林场1952年开始了大量有关树种选择试验和适地适树的研究,其中在林场头道沟、二道沟、杨家花园以及燕儿岭营造的块状油松、侧柏、栎类试验林,现已成为由油松林、侧柏林、栎林以及与其他针阔叶林树组成的块状镶嵌混交林。对这种块状镶嵌混交林的组成林分进行了调查和分析,认为该混交林具有3个明显的特征:(1)与地带性植被相一致,体现出近自然林业的思想;(2)与森林的进展演替进程相一致,保证森林能够实现可持续经营;(3)组成块状镶嵌的混交结构,符合北京生态公益林发展的功能要求。并提出通过抚育逐步形成块状镶嵌针阔混交林的措施。

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, Platy cladus 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 noncommercial forests around Beijing. The relative management technology is proposed.