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Conservation and improvement of the sanctuary forests for Japanese monkeys and sika deers.

日本猴和梅花鹿保护区森林的保护和改善。

基本信息

批准号：
07660184
负责人：
KABAYA Haiime
金额：
$ 1.34万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
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-07660184/
关键词：
sika deer Japanese monkeys deer-proof fence Boso Mounains changes of vegetation wildlife preservation area regeneration 生息保護地域萌芽林ニホンサル森林の環境収容力天然実新

项目摘要

1.Conservation and improvement of the forests for Sika deers. The density of sika deer is so high that the ferest floor vegetation become poor in a wildife preservation area of Boso Mounains, Chiba prefecture. In order to improve the habitatfor the wildlife, sika-proof fence were installed at the experiment plot in Tokyo University Forests in Chiba.(1)In the case of Higasinosawa experiment plot.In sixteen months after installing sika-proof fence, the maximum coppice shoot of Quercus acuta in the fence was 113 cm hight, and that outside the fence was 54 cm high. Outsuide the fence, all coppice shoots decreased in height or died, except for Neolistea sericea i.e. the unpaletable species for sika deer. The standing crop of palatable species was 118 g/m^2 in the fence, while that was 1 g/m^2 outside the ence.(2)In the case of Mazawa experiment plot. (150)In ten months after installing sika-proof fence, the density of seedling, nummber of species and vegetation coverage in the fence were eight times, three times and fifteen times, respectively, as compaired with those outside the fence. The standing crop of palatable part was 40 g/m^2 in the fence, while that was 6 g/m^2 outside the fence.2.Improvement of the sancturary forest for Japanese monkeys.The changes of vegetation of the regenration experiment plot in Mt. Takagoyama, Kimitu City, Chiba Prefecture, were studied for 5 years. The purpos for the experiment is to establish the method of conversion from coniferous forest to broad-leaved forest. More than 7,000 seedlings of broad-leaved trees per ha sprouted after the clear cutting of coniferous forest. By a clearing treatment in four to five years after clear cutting, the broad-leaved forest that has possibility to supply monkeys with many food were made.

1.梅花鹿森林的保护和改良。千叶县房总山野生动物保护区内梅花鹿的密度如此之高，导致地面植被变得贫瘠。为了改善野生动物的栖息地，在千叶东京大学森林试验地安装了梅花鹿围栏。(1)以东野泽试验地为例，安装梅花鹿围栏后16个月内，围栏内的麻栎最大矮林芽高为113厘米，围栏外的小林芽最高高为54厘米。栅栏外，除了梅花鹿难以食用的新木林（Neolilistea sericea）外，所有的矮林枝条都变矮或死亡。围栏内适口性物种的现收量为118 g/m^2，围栏外为1 g/m^2。(2)以马泽试验地为例。 (150)安装防梅花围栏10个月后，围栏内的苗木密度、物种数和植被覆盖度分别是围栏外的8倍、3倍和15倍。围栏内可口部分的现成作物为40 g/m^2，围栏外为6 g/m^2。2.日本猕猴保护区森林的改善。对千叶县君堂市高子山再生试验地的植被变化进行了5年的研究。试验目的是建立针叶林转阔叶林的方法。针叶林砍伐后，每公顷发芽阔叶树苗7000余株。通过砍伐后四五年的清理处理，形成了可以为猴子提供大量食物的阔叶林。