Prediction model of titmouse habitat distribution as an indicator species for wide-area assessment of urban environment
Year Published:2004
Author:Hiroshi Momose・Fujiwara Nobuo・Osamu Ise・Hiroshi Hashimoto・Yukihiro Fujimoto
As part of a project to support wide-area land use planning, we examined a method for evaluating urban environments based on the habitat potential of a bioindicator
species (titmouse). First, analysis of the results of a mesh survey conducted in the vicinity of Utsunomiya City, Tochigi Prefecture, revealed that tits are strongly
associated with forests, and that the occurrence rate of this species exceeds 50% when the percentage of forests in a 250-m mesh exceeds 20%. Next, we constructed a
habitat prediction model for the titmouse using the distribution of forested areas and land use extracted from satellite images, created a broad-scale potential
habitat distribution map for the Kanto region, and verified the prediction accuracy of the model using survey results from other regions. Finally, we discussed how to
utilize the obtained information in land use planning.
Landscape Studies，Vol.67 (5)，pp491-494
Relationship between Land Cover and Population of Adult Genji Fireflies in a Rural Valley Tsunamis
Year Published:2004
Author:Daisuke Sawada・Kazuhiro Kato・Hiroyoshi Higuchi・Hiroshi Momose・Fujiwara Nobuo
We measured the population of adult genji-botaru fireflies at 49 survey sites set up in five valleys in the rural areas of Ichikai-cho and Motegi-machi, Tochigi
Prefecture, in June 2003, and analyzed the environmental conditions that define the genji-botaru population. Results of classification and regression tree (CART)
analysis using environmental conditions around the survey sites as explanatory variables showed that vegetation around the waterway, land use in the valley floor, and
the shape of the waterway affected the population. In particular, the population was found to be higher when the channel was unimproved and covered with herbaceous
vegetation, the adjacent valley wall slope was wooded, and the valley bottom was rice paddies, fields, or managed fallow lands.
Landscape Studies，Vol.67(5)，pp523-526
Analysis of Relationship between Forest Floor Vegetation and Environmental Conditions for Forest Management Planning in Michinoku Morino Lakeside Park
Year Published:2004
Author:Yoriko Hatase・Fujiwara Nobuo・Hitomi Oguri・Hiroshi Momose・Etsuko Utsugi・Eizo Oe・Ikuko Inomoto
In order to maintain vegetation on the forest floor suitable for recreational use, it is necessary to set appropriate management goals based on the relationship
between environmental conditions and vegetation on the forest floor. In this study, we conducted a field survey in Michinoku Morinokohan Park in Kawasaki Town, Miyagi
Prefecture, Japan, to clarify the relationship between environmental conditions and forest floor vegetation, and to examine how to set site classifications and
management objectives. The results showed that the species composition of the forest floor vegetation differed between ridges, slopes, and valleys, and that there
were also differences corresponding to accumulated temperature and soil moisture, and that the relative photon density was low in valleys despite the low density of
tall trees. These findings suggest the need to establish site classifications and management objectives that reflect the different species composition and
environmental conditions on the ridge/slope and in the valley.
Landscape Studies，Vol.67(5)，pp543-546
Proposal of a Complex Evaluation Method for the Convenience of Large Hilly Parks Based on Topographical Analysis
Year Published:2004
Author:Hideo Nakahashi・Hiroshi Momose・Hitomi Oguri・Nobukata Tashiro・Fujiwara Nobuo
The purpose of this study was to evaluate individual factors that constitute convenience, such as ease of use, safety, and landscape, by conducting topographical
analysis using GIS in large-scale park planning, and to propose a method for integrating these individual factors to understand the characteristics of park locations
from a composite perspective. The results of the analysis showed that the convenience of the planned site was evaluated in terms of “slope angle,” “slope
orientation,” “ease of reaching,” and “good view,” and by superimposing these factors, a composite evaluation of convenience was possible.
Landscape Studies，Vol.67(5)，pp669-672
Study on Economic Evaluation of Urban Parks by Conjoint Analysis
Year Published:2004
Author:Yuko Takeda・Fujiwara Nobuo・Naoki Yonezawa
The results showed that 1) park functions were evaluated more reliably than park facilities in terms of attributes, 2) parks in areas with low green coverage were
evaluated more highly, and 3) naturalness was evaluated more highly, and the suitability for exercise was not required. 3) Naturalness was highly rated, and physical
fitness was not required.
Landscape Studies，Vol.67 (5)，pp709～712
Raccoon dogs: Finnish and Japanese Raccoon dogs-on the road to speciation?
Year Published:2004
Author:Kauhala, K.Saeki, M.
Are the Japanese raccoon dogs really different species? We compared the continental Ussuri raccoon dog with the Japanese Hondo raccoon dog and Ezo raccoon dog in
terms of morphology, chromosomes, ecology, and physiology, suggesting that the Japanese raccoon dog is in the process of speciation.
D. MacDonald and C. Sillero-Zubiri eds. Biology and Conservation of Wild Canids,pp217-226，Oxford University Press, Oxford, UK.
National Trends in Street Trees
Year Published:2004
Author:Naoki Yonezawa
Using the results of a 2002 survey of the current status of road greening in Japan and the results of previous surveys, we examined trends in roadside trees in Japan.
The results showed that 1) the number of both tall and medium-shrub trees has increased in each survey, 2) the total number of tree species increased steadily until
1992, but the 2002 survey showed a leveling off trend, and 3) each region has its own unique roadside tree species.
Roads and Nature，Vol.23，pp34-37
Measuring tree height in urban parks using commercially available aircraft laser scanner data
Year Published:2004
Author:Yu Yamagishi・Fujiwara Nobuo etc.
Using two types of laser scanner commercial data with different data densities, we measured the height of trees in Koganei Park, Tokyo, and verified their accuracy.
Proceedings of the 2004 Annual Meeting of the Japanese Society of Photogrammetry
－Measurement and use of spatial information－，pp183-186
GAP analysis for ecological network planning
Year Published:2004
Author:Yasuo Izuka・Midori Saeki・Fujiwara Nobuo
In order to establish a method for ecological network planning, an efficient method using GIS (Geographic Information System) was studied. Through GAP analysis using
the Mito City area as a case study site, we were able to identify gaps in current measures for wildlife protection and identify candidate sites where it is important
to conserve and create habitats in the future.
Civil engineering data，Vol.46(7)，pp38-43
National Research Institute's version of a noise and vibration simulator A GIS-linked system for predicting and evaluating construction project impacts on rare birds
of prey
Year Published:2004
Author:Hiroshi Momose・Tadahisa Matsunaga・Yasuo Izuka・Fujiwara Nobuo
Noise and vibration generated by various construction projects have become a major environmental problem, and recently there have been an increasing number of cases
of adverse effects on the nesting activities of rare birds of prey. To address these issues, we have developed the National Institute of Advanced Industrial Science
and Technology (AIST) version of a noise and vibration simulator. This system is a free software that calculates the propagation of noise and vibration generated by
the construction and operation of dams and roads in the surrounding areas, and predicts and displays the results on a GIS. By using this system, it is possible to
quantitatively and visually grasp the noise and vibration levels near raptor nesting sites in the planned project area before the project is implemented. This paper
describes the outline and utilization of this system.
Civil engineering data，Vol.46(7)，pp32-37
Changes in Street Trees in Japan - Results of the 2002 National Survey of Street Trees
Year Published:2004
Author:Naoki Yonezawa・Fujiwara Nobuo・Yuko Takeda
Based on the results of the 2002 survey, the fifth in the past 20 years, we compared the number of tall trees on public roads with those of past surveys to see how
roadside trees have changed. The results showed that 1) the number of trees increased by 3.08 million to 6.79 million, 2) the number of trees per km of road increased
by 2.3 trees/km to 5.8 trees/km, 3) the number of trees per km of road increased in prefectures with large cities and in Okinawa Prefecture, and 4) the number of
dogwood trees increased significantly. 4) The number of dogwood trees increased significantly.
parkland，Vol.65(2)，pp45-48
Relationship between roadkill of medium-sized beasts on highways and the road's surrounding environment
Year Published:2004
Author:Kuniaki Otake・Yasuo Izuka・Midori Saeki・Fujiwara Nobuo
The locations where roadkill occurs were considered as potential corridor locations, i.e., where animal migration routes are blocked by roads, and their distribution
and landscape structure characteristics were examined to contribute to the concept of an ecological network.
The 51st General Meeting of the Ecological Society of Japan，pp156
Germination characteristics of lakeshore plants under an artificially stabilized water regime.
Year Published:2004
Author:Nishihiro, J. Araki, S. Fujiwara, N. Washitani, I.
Germination and dormancy characteristics of 25 plant species growing in Kasumigaura were examined, and it was pointed out that management of elevated water levels may
have a negative effect on plant germination.
Aquatic Botany，Vol.79，pp333-343
Decline of Kasumigaura lakeshore vegetation zone and its interlocal variation factors
Year Published:2004
Author:Narumi Miyawaki・Atsushi Nishihiro・Keigo Nakamura・Fujiwara Nobuo
The effects of lakeshore topography, embankment construction, wave conditions, and other factors on the decline of the vegetation zone in Kasumigaura over the past 30
years were analyzed.
Preservation Ecology Study，Vol.9，pp45-56
Landscape evaluation structure analysis of road green space using evaluation grid method
Year Published:2004
Author:Hitomi Oguri・Taisuke Hino
In order to explore the requirements for the width of the planting strip and the amount of greenery required for road green spaces from the perspective of
comfort-enhancing functions, we analyzed the landscape evaluation structure of road green spaces using the evaluation grid method, an environmental psychological
survey technique.
The 6th Congress of the Japan Society of Sensory Workers2004，pp133
Prevention of tree fall accidents -Inspection by tree decay diagnostic machine
Year Published:2004
Author:Yasuo Izuka・Fujiwara Nobuo
Trees planted in public green spaces, such as parks and roads, are close to people on a daily basis, so when they fall over, the damage they cause to the surrounding
area is expected to be significant. Therefore, it is necessary to understand the danger of tree collapse in advance and take necessary measures. We devised a method
to measure the wood decay status of trees nondestructively by using the principle of attenuation by material density and thickness when radiation (trace radiation not
regulated by law) penetrates through materials, and developed a device to do so.
Proceedings of the World Congress of Parks and Recreation in Hamamatsu，pp407-408
Raccoon dog Nyctereutes procyonoides (Gray, 1834)
Year Published:2004
Author:Kauhala, K. M.Saeki.
IUCN Action Plan covering raccoon dog species and subspecies descriptions, distribution, population status, and threat factors worldwide.
Canids: Foxes, Wolves, Jackals and Dogs. Status Survey and Conservation Action Plan. Sillero-Zubiri, C., M. Hoffmann and D. W. Macdonald eds.，pp136-142，
IUCN/SSC Canid Specialist Group
Development of a tree decay diagnostic machine to prevent tree fall accidents
Year Published:2004
Author:Yasuo Izuka・Fujiwara Nobuo
In tree decay surveys, it is difficult to check the progress of decay from the outside because wood decay often occurs in the trunk or at the base of the tree.
However, this method causes damage to the tree and can only measure the area where the cone penetrates the tree. To solve these problems, we developed an instrument
that enables nondestructive quantitative diagnosis to be performed on the cross section of a tree trunk.
The main points of the research paper presented at the General Meeting of the Chubu Branch of the Japan Society of Gardening in the 16th year of the Heisei
era，Vol.1，pp37-38
World distribution and status of the genus Martes in 2000.
Year Published:2004
Author:Proulx, G., Aubry, K. B., Birks, J., Buskirk, S. W., Fortin, C., Frost, H. C., Krohn, W. B., Mayo, L., Monakhov, V., Payer , D., Saeki, M., Santos-Reis, M.,
Weir, R. and Zielinski, W. J.
At the 3rd International Symposium on the Tortoise (Martes 2000), 14 researchers from 6 countries reviewed the distribution, habitat associations, population status
and trends, and research and conservation management needs for each species. The study was conducted by 14 researchers in 6 countries.
Harrison, D. J., Fuller, A. K. and Proulx, G. eds. Marten and Fishers (Martes) in Human- altered Environments: An International Perspective，pp21-76，SPRINGER
Publishers, Norwell, Massachusetts, USA.
Regeneration failure of lakeshore plants under an artificially altered water regime
Year Published:2004
Author:Nishihiro, J. Miyawaki, S. Fujiwara, N. Washitani, I.
The topography and plant seedling dynamics of the remaining vegetation zone in the Kasumigaura lakeshore were investigated, and it was shown that the rise in water
level during the seedling establishment period has a negative impact on plant renewal.
Ecological Research，Vol.19，pp613-623
Use of Landscape Simulation for City Planning
Year Published:2005
Author:Hideyuki Kobayashi・Hitomi Oguri
Although landscape simulation technology can be an effective tool for supporting consensus building in urban development, its application to various public projects
has not necessarily progressed in a linear fashion. Therefore, this paper reviews the technological progress in the application of landscape simulation technology to
landscape evaluation to date, focusing on the Ministry of Land, Infrastructure, Transport and Tourism version of the landscape simulator developed in previous years,
and summarizes the problems and technical issues that need to be solved in applying the technology to specific projects.
Landscaping Technical Report Collection2005，No.3，pp138-141
Management Techniques to Restore Vegetation on the Forest Floor of Japanese Cedar Forests in the National Michinoku Morino Lakeside Park
Year Published:2005
Author:Yoriko Hatase・Eizo Oe・Etsuko Utsugi・Hiroshi Momose・Ikuko Inomoto・Hitomi Oguri・Fujiwara Nobuo
Many satoyama forests, which are often used as places to commune with nature, are planted cedar forests along with Quercus serrata forests and other mixed forests.
However, young to mature cedar planted forests, which are overcrowded due to delayed thinning, lack light on the forest floor, resulting in poor vegetation on the
forest floor. Therefore, we conducted experimental thinning and monitoring at the Michinoku Morino Lakeside Park to examine cedar forest management techniques aimed
at restoring diverse forest floor vegetation and allowing forest floor plants to flourish.
Landscaping Technical Report Collection2005，No.3，pp50-53
Landscape and Ecosystem
Year Published:2005
Author:Hitomi Oguri
As part of the “Review and List of Important Papers” in the comprehensive journal “Frontiers of Landscape Design”, we have reviewed important papers in the field of
landscape ecology over the past 10 years with the aim of understanding landscape design in relation to ecosystems, and have compiled a list of research trends and
literature in terms of landscape structure and change, and landscape structure and function, The review compiles research trends and a list of references from the
viewpoints of landscape structure and change, landscape structure and function, and planning.
Transactions of the Architectural Institute of Japan，No.3，pp143-146
From Negative to Positive: Positive Road Maintenance for Wildlife
Year Published:2005
Author:Midori Saeki・Yasuo Izuka・Takuya Uchiyama・Masahiko Matsue
The nationwide network nature of roads and the continuity of glide surfaces and tree planting strips have great potential to be utilized for wildlife if viewed from a
different perspective. Therefore, we have identified 1) prevention of roadkill, 2) reduction of migration barriers, and 3) improvement of migration routes and habitat
quality as basic principles in road development for wildlife, and have developed a method and concept of road infrastructure development for active wildlife by
ensuring cross-sectional and longitudinal migration against the road. A case study will be presented.
Proceedings of the 4th Research and Presentation Meeting on “Wildlife and Transportation，pp41-48
Creation of beautiful green street space
Year Published:2005
Author:Hitomi Oguri
Everyone agrees that the presence of abundant greenery improves the streetscape. However, in many cases, street trees are treated as a nuisance due to insufficient
awareness of their characteristics, functions, and value. The evaluation of their functions and values is also there. After summarizing the roles of street trees and
the problems they face, research efforts to solve the problems will be introduced.
National Research Institute Annual Report2005，No.4，pp14-17
