Silricultural studies on structure and light climate on forest border.

林缘结构与光气候的营林研究。

• 批准号: 05454084
• 负责人: KAWANABE Saburo
• 金额: $ 2.11万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05454084/
• 关键词: forest edge; light environment; under growth; stand structure; leaf area index

The stand structure of forest border in three artificial forests and two natural forests were investigated to study the effects of forest edge to inner border of stands. Relative light intensity under forest canopy decreases from the edge toward the stand interior up to about the same or little more distsnce as the height of overstory trees. Basal area at old artificial forest border decreases as the distance from the edge to inner stand increases. Leaf area index of stands at edge and inner stand surveying with Li-Cor LAI-2000, almost no difference were founded. The relations of relatve light intensity under forest canopy to species composition, density and biomass of under-growth around the forest border were discussed.The crown structure of Quercus glauca saplings grown under the deep shade and around the border in natural chamaecyparis obtusa forest were investgated to study the effects of light deficiency on mechannical and morphological adjustment of leaf in crown. The specific leaf area increases, and the leaf area density decreases as the light intensity decreases. Also the crown volume per branch weight increases under deep shade in stand.

对三片人工林和两片天然林的林缘结构进行了调查，研究了林缘对林分内缘的影响。森林冠层下的相对光强度从边缘向林分内部递减，直到与上层树木的高度大致相同或稍远的距离。旧人工林边界断面积随着边缘到林分内距离的增加而减小。用Li-Cor LAI-2000测量林分边缘和内部的叶面积指数，几乎没有发现差异。探讨了林冠下相对光强与林缘林下树种组成、密度和生物量的关系。对天然扁柏林深荫下和林缘的青栎幼树树冠结构进行了调查，研究了光不足对树冠叶片机械和形态调节的影响。随着光照强度的降低，比叶面积增大，叶面积密度减小。此外，在林中深荫下，单位枝重量的树冠体积也会增加。

项目成果

川那辺三郎: "林縁の光環境と下層植生について-2,3の異なった林分の比較-" 日本林学会論文集. 105. 435-436 (1994)

Saburo Kawanabe：“森林边缘的光照环境和林下植被 - 几种不同林分的比较”日本林业学会汇刊 105. 435-436 (1994)。

KAWANABE,S :"Effects of shade on leaf density of Quercus glanca saplings" 106th meet.of Japanese For.Soci, (Hokkaido Univ.Apr.1995) Conference.

KAWANABE,S：“遮荫对栎树幼苗叶密度的影响”第 106 届日本 For.Soci 会议，（北海道大学，1995 年 4 月）会议。

川那辺三郎: "異なった光強度下のアラカシ幼樹の葉密度について" 第106回日本林学会大会発表. (口頭発表予定). (1995)

Saburo Kawanabe：“关于不同光照强度下日本橡树幼树的叶子密度”在日本林业协会第 106 届年会上的演讲（预定为口头演讲）。

川那辺三郎: "異なった光強度下のアラカシ幼樹の葉密度について" 第106回日本林学会大会(北海道大学1995年4月). 口頭発表. (1995)

Saburo Kawanabe：“关于不同光照强度下日本橡树幼树的叶子密度”，第 106 届日本林业学会年会（北海道大学，1995 年 4 月）。

KAWANABE,S :"Effects of forest border on light environment and structure of understory vegetation -Studies on some different forest stands" Trans.of Japanese For.Soci.No.105. 435-436 (1994)

KAWANABE,S：“森林边界对光环境和林下植被结构的影响 - 对一些不同林分的研究”Trans.of Japanese For.Soci.No.105。