文献类型：期刊文献

中文题名：祁连山青海云杉天然林林隙更新研究

英文题名：Gap regeneration of Picea crassifolia natural forest in Qilian Mountains.

作者：李金良[1] 郑小贤[1] 陆元昌[2] 雷相东[2] 刘晓昕[3]

第一作者：李金良

机构：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,100083;[2]中国林业科学研究院资源信息研究所;[3]吉林省白河林业局

年份：2008

卷号：30

期号：3

起止页码：124-127

中文期刊名：北京林业大学学报

外文期刊名：Journal of Beijing Forestry University

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金项目(30170773、30230290);“十五”国家科技攻关项目(2001BA510B0703)

语种：中文

中文关键词：青海云杉;天然林;林隙;天然更新;祁连山

外文关键词：Picea crassifolia;natural forest;forest gap;natural regeneration;Qilian Mountains

分类号：S754.1;S791.18

摘要：为了解决祁连山水源林区青海云杉天然林更新难的经营难题,该文根据实测数据对该地区青海云杉林隙天然更新进行了研究。结果表明,祁连山水源林区青海云杉林隙中心区更新最好,林隙内次之,林隙外(林冠下)最差,林隙内更新幼树以林隙中心区为核心呈聚集分布;林隙内外光环境对青海云杉的天然更新有影响。提出了"单株择伐-小面积林隙-天然更新"促进青海云杉林天然更新的可行技术,为该区青海云杉水源林更新及经营模式构建提供了理论依据和技术支持。
In order to solve the difficult management problem of the regeneration of Picea crassifolia natural watershed forest in Qilian Mountains,based on the investigation data,the gap regeneration of natural P.crassifolia forest is studied.The study reveals general rule of forest gap regeneration.The natural regeneration in the areas of gap center is best,inside better,outside worst.Distribution pattern of natural regeneration seedlings is fasciculate around the gap center and the effects of sunlight for inside and outside gaps on the natural regeneration of P.crassifolia are pointed out.A feasible management technique of ＂single——tree selection cutting——small gaps——natural regeneration＂ is put forward,and it resolves the problem of regeneration of P.crassifolia natural forest in Qilian Mountains,which baffles the researchers and forest managers for a long time.This achievement supplies theory basis and technique support for the regeneration of P.crassifolia forest and establishes the forest management model in this area.