太行山杨桦天然次生林林分特性及经营技术研究

杨桦林是太行山天然林资源的重要组成部分 ,现状是萌生代数多 ,破坏严重 ,林相残破 ,材质差 ,经济价值低。现行的经营措施又是以改造为主 ,不能充分利用现有的杨桦林资源。本文根据太行山天然杨桦次生林现状 ,按经济效益和生态效益相结合的指导思想 ,将其划分为 5种经营类型 ,并分别制定经营措施 ,为杨桦次生林探索一条科学合理 ,现实可行的经营途径

A Study on Stand Features and Management Technology of Natural Populus davidiana and Betula platyphylla Secondary Forests in Taihang mountains

Populus davidiana and Betula platyphylla forest are the important component part of natural woods in Taihang mountains. The present situation of the forest is : sproted many generations, destroyed heavily, forest broken canopy, badly quality of timber and lower econmic value. At present, remaking is the main management measure, which could not fully utilize the existing Populus davidiana and Betula platyphylla forest. This article is according to the current situation of Populus davidiana and Betula platyphylla forests, on the basis of guiding ideology of combining economic benefit and ecology benefit to divide the forest into five kinds of management types and to make the management measures to each one. The purpose of the article is to find a scientific, rational and feasible management method to the Populus davidiana and Betula platyphylla forests.