清林对云冷杉针阔混交林天然更新的影响初探  

Preliminary Exploration on the Influence of Forest Liquidation on the Natural Regeneration of Spruce-Fir Mixed Stands

作　　者：贾秀红[1] 郑小贤[1] 黄新峰[1] 

机构地区：[1]北京林业大学,北京100083

出　　处：《林业调查规划》2004年第2期34-36,共3页Forest Inventory and Planning

基　　金：本文是"十五"攻关课题"东北天然林生态采伐更新技术研究与示范"(2001BA510B07)的部分内容。

摘　　要：对吉林省汪清林业局金沟岭林场云冷杉针阔混交林择伐作业林分的归堆法、归带法和散铺法3种清林方式,采用标准地和路线调查法进行了天然更新调查。结果表明这3种清林方式对云冷杉针阔混交林的天然更新影响较小;散铺法对该林型林下植被的生长有影响。堆放时间超过10a的枝堆上出现了一定数量的云冷杉幼苗,这说明堆枝可以为云冷杉天然更新的发生提供更多必要条件。The 3 ways of forest liquidation in the coniferous & broadleaf spruce-fir mixed stands of Jingouling Farm, Wangqing Forest Bureau, Jilin Province are classified as Pile, Stripping and Spreading of selective operational logging stand. The methods of sample-plot survey and route survey are adopted to investigate the natural regeneration. The result shows that those three types of liquidation have less influence on the natural regeneration of the coniferous & broadleaf spruce-fir mixed stands; but the Spreading brings certain effects on the vegetation under forest. A regular amount of the spruce-fir seedlings appear in the young branch piles reserved over 10 years, which indicates that more necessary conditions for the emergence of natural spruce-fir seedling regeneration can be provided.

关 键 词：清林方式 云冷杉 针阔混交林 天然更新 归堆法 归带法 散铺法 

分 类 号：S791.14[农业科学—林木遗传育种] S754.1[农业科学—林学]