二次林の管理計画のための植生の空間的分布と人為的管理の関係(平成14年度 日本造園学会研究発表論文集(20))  [in Japanese] A Study of Relationship Between the Distribution of Vegetation and its Management Strategy to Conserve Species Diversity in a Secondary Forests  [in Japanese]

適切な二次林管理対象地の選定のための基礎的研究として,植物種や植生の空間的分布と人為的管理や土地利用履歴との関係を明らかにすることを目的に調査を行った。その結果,人為的管理によって出現頻度が増加・減少する下位単位区分種が多いこと,過去の土地利用で草原であった地区では森林性の種は分布しないこと,森林が継続している地区では草原性の種の分布は少ないことが明らかになった。これらのことから種多様性のため,かつ効率的な二次林管理のためには,種子供給源となる現在の種の分布調査をした上で管理適地の選定などの植生管理計画が重要であると考えられる。

This study aims to highlight the relationship between spatial distribution of vegetation and its management to conserve species diversity in secondary forests in Haramachi, Fukushima of Japan. The secondary forests in this area were classified into 5 different types of vegetation through vegetation survey. The selected of 13 differential species and six selected rare species were chosen to be target species for their spatial distribution survey. The distribution of the differential species Smilax sieboldii and Clematis terniflora associated with forest floor management. Also, the distribution of the differential species Ainsliaea acerifolia var. subapoda was reflected to non-management. The growth of the differential species of A. acerifolia var. subapoda which are a woodland species, can be restricted by grassland. The results attempt to show that floristic composition of secondary forest was affected by not only forest management but also was affected by historical land-use. Therefore, it is important to have a good understanding of the spatial distribution of vegetation as an efficient planning of secondary forest management.