Conversion from simple coppice to species rich high forest

从简单的矮林转变为物种丰富的高林

• 批准号: 07556138
• 负责人: KAMITANI Tomohiko
• 金额: $ 0.64万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07556138/
• 关键词: deciduous broad-leaved forest; treatment; artificial gap; plant species diversity; regeneration; hemispherical photographs; growth; beech; 落葉広葉樹; 間伐; 環状剥皮; 光環境

We proposed to create artificial gaps in coppice stand for harmonizing restoration of plant species diversity and conversion to high forest. For these aims, we firstly presented a new method for estimating understory light level in and around artificial gap prior to cutting. Data were obtained from the 'erasing method' in which light levels are estimated by using computerized images of hemispherical photographs on which crowns assumed to be cut are digitally. The equation presented in this study has an advantage that the indices needed for calculation are able to measure easily in stands of even on crown projection diagrams.We created seven artificial gaps whose sizes are from 20 to 380 m^2 in derelict coppice. Mean number of plant species and their diversity were increased with gap size. In these gaps, densities of current year seedlings of canopy tree species were differently according to light intensity and litter cover. Diameter growth of trees being adjacent those gaps changed after creating the gaps. Species characteristics were reflected on the growth ratios.We concluded that the conversion from simple coppice to complex stand structure with artificial gap is available for harmonizing restoration of plant species diversity and conversion to high forest.

建议在矮林中设置人工林隙，以协调植物物种多样性的恢复和向高林的转化。为此，我们首先提出了一种新的方法来估计林下光照水平和周围的人工林隙前切割。数据是从“擦除法”中获得的，其中通过使用半球形照片的计算机化图像来估计光照水平，其中冠假设被数字化切割。本研究提出的方程的优点是，计算所需的指数能够在树冠投影图上方便地测量，我们在人工林中创建了7个人工林隙，其大小从20到380 m^2。林窗面积越大，植物种类数越多，物种多样性越高。林隙内林冠树种当年生苗木密度因光照强度和凋落物覆盖度的不同而不同。林隙形成后，林隙附近树木的直径生长发生了变化。物种特征反映在生长率上，由简单矮林向人工林隙复合林分结构的转化，有利于协调植物物种多样性恢复和向高林转化。

项目成果

Fukamachi, K.: "Landscape patterns and plant species diversity of forest reserves in the Kanto region, Japan" Vegetatio. 124. 107-114 (1996)

Fukamachi, K.：“日本关东地区森林保护区的景观格局和植物物种多样性” Vegetatio。

Kamitani,T.: "The effect of selective cutting on the structure and regeneration of natural mixed forest dominated by Cryptomeria japonica and Fagus crenata in Sada experimental forest of Niigata University,central Jpan" Research Bulletin of the Niigata Un

Kamitani,T.：“选择性砍伐对日本中部新泻大学佐田实验林以柳杉和水青冈为主的天然混交林结构和更新的影响”新泻大学研究通报

Kamitani, T.: "Conversion from coppice to high forest considering biological diversity." Shinrin Keikaku kaiho, (in Japanese). 372. 2-6 (1996)

Kamitani, T.：“考虑到生物多样性，从矮林转变为高森林。”

Nakashizuka, T.: "Species diversity of coppice" (in Vegetation Management of Coppice -its ecosystem and management technology-Kameyama ed.) SOFT SCIENCE INC.Tokyo. (in Japanese). 303 (1996)

Nakashizuka, T.：“林地物种多样性”（林地植被管理 - 其生态系统和管理技术 - 龟山编辑）SOFT SCIENCE INC.Tokyo。

Kamitani, T.: "The effect of selective cutting on the structure and regeneration of natural mixed forest dominated by Cryptomeria japonica and Fagus crenata in Sado experimental forest of Niigata University, central Japan" Research Bulletin of the Niigata

Kamitani, T.：“选择性砍伐对日本中部新泻大学佐渡试验林以柳杉和水青冈为主的天然混交林的结构和更新的影响”新泻研究通报