大兴安岭林区外来树种引种中试可行性研究

黑龙江大兴安岭林区存在树种单一,森林经济价值低的问题,为此,于20世纪80年代初开始陆续引种了长白落叶松、红松、西伯利亚红松和北美短叶松4个外来树种,并获得了成功.为尽早在本区推广应用,进行4树种的中试造林研究,以达到改善森林品质,提高森林生物多样性和经济效益的目的.文章介绍4树种生物学、生态学特性以及引种概况,并对照当地乡土树种,进行4树种经济效益分析.

Analysis on Feasibility Study about Introduction Experiment of Adventitious Tree Species in Daxinganling

There exist the problems including mono-species of trees and low economic value of forest in Daxinganling district.Therefore,four adventitious tree species namely Larix olgensis,Pinus koraiensis,Pinus sibirica and Pinus banksiana had successfully been introduced in succession since 1980s.In order to apply these four species extensively in this district,the study on introduction experiment had been conducted to achieve the purposes of improving forest quality and speeding up the forest biodiversity and economic benefit.In the paper,it introduced the biological and ecological characteristics of these 4 species and the general situation of the introduction.Compared with that of indigenous species in the local,the economic benefit of these 4 species had been analyzed.