- 著者
- 伊奈 博彦 倉本 宣
- 出版者
- 社団法人日本造園学会
- 雑誌
- ランドスケープ研究 : 日本造園学会誌 : journal of the Japanese Institute of Landscape Architecture (ISSN:13408984)
- 巻号頁・発行日
- vol.66, no.5, pp.627-630, 2003-03-31
- 被引用文献数
- 9 4
We investigated ten environment factors of habitat conditions of Lefua echigonia (Endangered Species) in small irrigation streams of Yato during an irrigation period and a non-irrigation period in 2002. Study area was three Yatos in Zushi-onoji Historical Environmental Conservation Area, Tokyo. Then the relationship between the existence of this species and the environmental factors at each period was analyzed. As the result, it was indicated that during the irrigation term, affective factors to the habitat of this species were physical environmental factors, substrate type and the presence of paddy fields on sides of stream. During the non-irrigation term, chemical environmental factors, substrate type and water velocity affected the habitat. Therefore, it was suggested that conservation measures should be different at each period.
1 0 0 0 社会資本の2次元配置手法
- 著者
- 石谷 久 伊奈 博
- 出版者
- 日本シミュレーション学会
- 雑誌
- シミュレーション (ISSN:02859947)
- 巻号頁・発行日
- vol.2, no.2, pp.114-121, 1983-07-15
In a long range regional planning, it is required to realize appropriate geometrical allocations of infrastructures taking account of the population distribution and other geographical conditions in order to improve resident's conveniences or to secure minimum, living standards. For this purpose, authors developed a model for allocation of infrastructures for a district level based on numerical land informations, and presented its framework and some of applied results. In the paper, characteristics of investment allocation algorithm, which is the essential part of the model, are investigated in detail, and effects of allocating parameters on the resultant allocations for various conditions are investigated by simulation study. Allocations obtained by this algorithm and actual allocations are also compared for several facilities, and parameters to simulate the real situations are derived. In the peper, basic characteristics of the algorithm and some results of the comparative study are presented.