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A study on the conservation of biological diversity of the lucidophyllous forest

绿叶林生物多样性保护研究

基本信息

批准号：
13680649
负责人：
HATTORI Tamotsu
金额：
$ 1.92万
依托单位：
HIMEJI INSTITUTE OF TECHNOLOGY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13680649/
关键词：
Lucidophyllous forest Biological diversity Species richness Species-area relationship Flora of lucidophyllous forest Canopy gap Mature phase Endangered species 種組成土壌生活形絶滅危惧照葉人工林

项目摘要

1 Species-area relationship in the fragmented lucidophyllous forestsThe relationship between the number of component species of lucidophyllous forest and forest area was analyzed. The results show that the log species-log area model describes the species-area relationship in three regions better than the species-log area model.2 Flora of the lucidophyllous forest in JapanFloristic investigation of the lucidophyllous forest throughout Japan was conducted. The flora of the lucidophyllous forest throughout Japan consists of 1,008 species. About 30 percent of the total numbers of component species are endangered.3 Species richness in the gap phase of lucidophyllous forestIn the gap phase, the species richness of all occurring species per 100 m^2 and that of component species, except for epiphytes, were higher than those in the mature phase. Canopy gaps play an important role in the maintenance of species richness as well as the process of lucidophyllous forest regeneration.4 Species richness of lucidophyllous forest along the environmental conditionsSpecies richness (number of species per 225 m^2) along the micro-scale geomorphic units (foot slope, lower sideslope, upper sideslope, crest slope and rocky site) ranged from 62.6 to 44.0, and foot slope had the highest species richness. On foot slope, high species richness seemed to be due to high values of minimum air capacity.Species richness (number of species per 225 m^2) along the altitudinal gradient ranged from 30 to 68 and decreased abruptly from low to high altitude.

1片断化森林中物种与面积的关系分析了片断化森林中组成物种的数量与森林面积的关系。结果表明，对数种-对数面积模型比种-对数面积模型更好地描述了3个地区的种-面积关系。2日本光叶林的植物群全日本的光叶林的植物群包括1，008种。林隙阶段的物种丰富度在差距阶段，除附生植物外，每百m^2现存种的物种丰富度和各组成种的物种丰富度均高于成熟阶段。林窗在物种丰富度的维持以及森林更新过程中起着重要的作用。4森林物种丰富度沿着环境条件变化物种丰富度（每225平方米的物种数）沿着微尺度地貌单元（坡脚、坡下、坡上、坡顶和石质场地）的物种丰富度范围为62.6 ~ 44.0，坡脚的物种丰富度最高。物种丰富度（每225 m^2物种数）沿海拔梯度沿着变化范围为30 ~ 68，从低海拔到高海拔急剧下降。