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

本文根据1986 ~ 1989年三年的调查结果，为今后在内海国家公园区及周边地区创造“绿色”景观，积极增加了促进植被演替技术，并将林地的处理总结如下。(1)在松树枯枝落叶的林地土壤中，现有栽培树种中的木、乌藨子、乌饭树、野桐和松树的幼苗容易成活。因长时间无降雨而死亡此时林地土壤的pF值约为3.5-3.8。(2)松树枯死后，林床或覆盖着林下植被的树叶的存在，对松树幼苗的产生和生长有影响。(3)1987年的异常干旱使自然生长的本年度松树幼苗在裸露的土壤中全部死亡，但发现约有35-5%的生长个体存在于周围的林下植被或有确定的叶覆盖的林地中。

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.