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Studies on the Planting method for the Establishment of Seaside forest and Reclined foreshore land

滨海林地和斜滨地造林方法的研究

基本信息

批准号：
61560036
负责人：
YOSHIDA Shigeyuki
金额：
$ 1.47万
依托单位：
Kagawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1988
项目状态：
已结题

项目摘要

Vegitative succession promoting technique is positively added for the purpose of the creation of "Green" landscape in the Inland Sea national park district and peripheral regions in the future on the basis of the results of investigation for three years since 1986 up to 1989 and the treatment of a forest land is summarized as follows.(1) In forest land soils wherein the overwood of a pine was dead, the seedlings of Eurya japonica, Vaccinium oldhami, Vaccinium bracteatum, Mallotus Japonicus and a pine in the existing vegitation species are easily. dead by non-rainfall extending over a long period of time. The pF value of forest land soils at this time showed about 3.5-3.8.(2) The presence of the forest bed or the leaf-cover strudded with undergrowth vegitation after the pine withering has effect on the generation of pine seedlings and the growth thereof.(3) All individuals of naturally grown this-year-old pine seedlings were dead inbare soil areas by the abnormal dryness in 1987 but it was found that about 35-5% of grown individuals existed in peripheral areas, where undergrowth vegitation was grown, or forest land with confirmed leaf-cover.

根据1986年至三年的调查研究结果，为今后在内海国家公园及周边地区营造“绿色”景观，积极增加植被演替促进技术，并对林地治理进行了总结：(1)在松材枯死的林地土壤中，现有植物树种中的日本越桔、越橘、毛叶越橘、海棠、松树的苗木容易萌发；由于长时间没有降雨而死亡。此时林地土壤的Pf值约为3.5-3.8。(2)松树枯萎后林床或林下植被的存在对松苗的生成和生长有影响。(3)1987年异常干旱使自然生长的当年生松树苗全部死于裸土区，但发现约有35%-5%的生长个体存在于林下植物生长的边缘地区或确认有叶覆盖的林地。