CAJ | 학술논문

为了提高国营林场森林蓄积量,对天然白桦次生林进行30多年的改造,在国家已审批可改造林地,对不同坡向选择栽植华北落叶松、油松、樟子松等针叶树,与白桦天然萌芽更新形成针阔混交林.结果表明:在阴坡、半阴坡混交林中落叶松生长最快,樟子松次之;而在阳坡、半阳坡混交林中,油松、樟子松生长旺盛.随着林龄的增长,森林蓄积量稳定增长.实践证明科学合理改造北方林区天然次生林,可达到森林经营的永续利用和可持续发展目标.
위료제고국영림장삼림축적량,대천연백화차생림진행30다년적개조,재국가이심비가개조임지,대불동파향선택재식화북락협송、유송、장자송등침협수,여백화천연맹아경신형성침활혼교림.결과표명:재음파、반음파혼교림중락협송생장최쾌,장자송차지;이재양파、반양파혼교림중,유송、장자송생장왕성.수착림령적증장,삼림축적량은정증장.실천증명과학합리개조북방림구천연차생림,가체도삼림경영적영속이용화가지속발전목표.
In order to improve the volume of state‐owned forest farm ,the reconstruction of white birch ’s sec‐ondary forest tree for 30 years was implemented .Our country has approved farm for planting larch ,planting Chinese pine ,Mongolica and other conifer according to different slope and aspect ,together with natural white birch to form theropencedrymion .The result showed that :in the shade and half shade slope mixed forest ,larch grew fastest and followed by Mongolica ,while in sunny slope and half sunny slope mixed forest ,Pinus tabulae‐formis and Mongolica grew vigorously .With the growth of the age of tree ,forest’s volume grew stably .Prac‐tice proved that scientific and reasonable transformation of northern natural secondary forest ,could achieve the sustainable utilization of forest management and sustainable development goals .