摘要 | 本文从林窗的形成、林窗内微环境特点、林窗内树木更新、以及树轮分析与干扰重建, 阐述了国内外在该领域的研究动态和取得的成果, 以期推动和促进我国的林窗研究工作。 根据欧美学者的研究报告, 林窗的面积不仅与林冠和树径的大小成正比, 而且与树木的倒伏方式有关;林窗的形成与特征主要受制造林窗树林的种类、树龄、海拔和气候带等因素的影响。 林窗内微环境特点随林窗的大小、形状、纬度及所处位置的不同而变化。 林窗是推动森林演替和更新的重要因素之一, 林窗的形成、大小影响和控制着林内树种的组成和树木的更新。 树轮分析可用于检测树木的生长释放, 研究表明, 在样本数量较大时, 树木生长释放对重建过去的森林干扰是很有用的。 |
Abstract | The researches on forest canopy gaps throughout the world , focused on gap formation, microenviro nmental characteristics and plant regeneration , treering analysis and gap disturbance reconstruction , were briefly introduced , with the aim of promoting the canopy gap studies in China.According to the reports w hich are mainly from North America and Europe , the gap area is no t only positive related to canopy size and diameter of the tree trunk , but also related to the death way .The factors such as species , tree′s age, elevation and climate zone have great influence on canopy gap′s formation and their characteristics .The microenvironment within the canopy gaps changes w ith the different g ap′s area, shape , latitude and position , et al .The gap is one of the key factors driving the forest succession and regeneration .The canopy gap′s formation and their area will response and control the species composition and forest |
关键词 | 林窗; 林窗制造木; 林窗微环境; 树轮分析; 干扰重建 |
Key words | forest gap; gap maker; microenvironment w ithin gap; tree ring analysis; disturbance reconstruction |
作者 | 夏 冰 ,邓 飞 ,贺善安 |
所在单位 | 江 苏 省中国科学院植物研究所, 南京 210014 |
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基金项目 | 江苏省科学技术储备项目 |