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A vegetation ecological study for the restoration and rehabilitation of green environment based on the creation of environmental protection forests in Japanese archipelago.

以日本列岛环保林创建为基础的绿色环境恢复重建的植被生态学研究

基本信息

批准号：
06454643
负责人：
FUJIWARA Kazue
金额：
$ 4.48万
依托单位：
Yokohama National University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1996
项目状态：
已结题

项目摘要

The creation of environmental protection forests, which were planted by native tree species in potential natural vegetation with dense plantation (1-3 individuals par square meters), became 1-24 years old since 1972. This project from 1994 to 1996 based on Grand-In-Aid for Scientific Research were summarized in following :(1)Analyzing the growth data in 1994-1996, (2)Comparing environmental dynamics, (3)Comparing the restoration of species diversity, (4)Comparing with rehabilitation of natural forests and species diversity, and succession speed, (5)Establishing the methodology and theory of rehabilitation and restoration of the environmental protection forests and species diversity.(1)The growth rate showed that seedlings of canopy species of the evergreen broad-leaved forests grow 1m par year in first ten years and then make stems thick after ten years. Growth rates of planted seedlings on the slope are better than flat areas. And it was proved that the age of trees cannot be decided regularly from their height and diameters. The each individuals showed different growth rate within same age.(2)The methodological data was discused based on data. The environmental dynamics are small in forests, and big outside of forests (on the bare land).(3)In species diversity (richness), plants by ornithocory could get in planted forests easily. After dens plantation over ten species germinated from 4-5 years after plantation. Seedlings of Fagaceae species occurred in forests after eight years (from the example of environmental protection forests in Yokohama National University).(4)The plantation method, with dens plantation of potted seedlings from canopy species in potential natural forests, can be grow 50-80 years faster than natural succession.

自1972年以来，在潜在的天然植被中种植当地树种的环境保护林的创建已达到1-24年。1994 - 1996年，本研究以科研资助项目为依托，通过对1994-1996年的生长数据分析，环境动态比较，物种多样性恢复比较，天然林恢复与物种多样性、演替速度比较，建立了生态环境保护林恢复与物种多样性的方法和理论。（1）万年青阔叶林冠层树种苗木生长速率表现为：前10年平均年生长1 m，10年后茎粗增加;坡地造林苗木的生长速度比平地好。事实证明，树木的年龄不能通过树木的高度和直径来确定。不同个体在同一年龄内生长速度不同。（2）对方法学数据进行了讨论。环境动力学在森林中很小，而在森林外（裸露的土地上）很大。(3)In物种多样性（丰富度），鸟类更容易进入人工林。种植园后4-5年萌发的种子有10余种。壳斗科树种在8年后的森林中出现了幼苗（以横滨国立大学的环境保护林为例）。（4）在潜在天然林中采用林冠树种盆栽密植的种植园方法，比自然演替快50-80年。