Example of a test case of spreading out forest topsoil collected in spring and summer as greening material
Year Published:2010
Author:Misako Kubo・Daisuke Hosogi・Masahiko Matsue
We collected and scattered forest topsoil in spring and summer, and examined changes in the number of seedlings that germinated and the number of species. The results
showed that 80% of the seedlings that appeared in a year were identified within about five months after the spring release of seedlings, both in terms of the number
of seedlings and the number of individuals. On the other hand, when seedlings were sown in summer, germination occurred twice, and it took more than eight months to
identify more than 80% of the seedlings.
Journal of the Japanese Society for Greening Engineering，Vol.35，No.4，pp532-536
Example of Slope Revegetation Using Forest Topsoil in National Bihoku Hillside Park
Year Published:2010
Author:Misako Kubo・Daisuke Hosogi・Masahiko Matsue
We conducted a revegetation project on a cut slope in Bihoku Hillside Park, Japan, using forest topsoil, and investigated the seeds in the topsoil and the vegetation
on the slope. The results showed that the topsoil contained many woody seeds, but no woody plants were found on the slope in the first year of construction.
Herbaceous species dominated from the first to the third year of construction, but the number of woody species increased from the third year.
Journal of the Japanese Society for Greening Engineering，Vol.35，No.4，pp542-546
Conservation measures for trees of scenic importance
Year Published:2010
Author:Yasuo Izuka
This guide is a compilation of methods of tree diagnosis, conservation measures based on the results, and maintenance management methods after conservation measures,
which are necessary for the maintenance and management of “trees of scenic importance” (trees important for the formation of good scenery), which can be designated
under the Landscape Law established to promote the formation of good scenery in cities, farming, mountain, fishing and other rural areas. This guide was prepared by
compiling the methods of tree diagnosis, the methods of conservation measures to be developed based on the results, and the methods of maintenance and management
after the conservation measures.
Civil engineering data，Vol.52，No.7，pp6-9
Landscape, revegetation, and slope protection measures
Year Published:2010
Author:Masahiko Matsue
Among the revisions of the guidelines related to road construction guidelines, the main parts of the revisions related to revegetation in Chapter 4 “Environmental and
Landscape Measures” and Chapter 8 “Slope Protection Works” of the “Guidelines for Earth Cutting and Slope Stabilization Works,” for which the Revegetation Ecology
Laboratory was in charge, are introduced.
foundation works，Vol.38，No.7，pp31-34
Prediction of suitable habitat for the Hondo raccoon dogfish in northern Tochigi Prefecture and evaluation of the impact of dam construction.
Year Published:2010
Author:Naoki Tagashira・Midori Saeki・Yoichi Sonoda・Youya Senda・Masahiko Matsue
We developed a habitat suitability model and predicted habitat changes due to the dam project for a common species of raccoon dog in the area where the Yunishigawa
Dam is planned to be constructed in Tochigi Prefecture. As a result, it was found that not only the area of suitable habitat decreased, but also the fragmentation of
suitable habitat was large. The results of this study suggest that the assessment of the environmental impact of dams should include consideration of the waterlogged
area, vegetation and topography, and their continuity.
Journal of Applied Ecological Engineering，Vol.13，No.1，pp49-60
Applicability of Individual Identification Method Using Fecal DNA Extraction for Road Environment Impact Assessment
Year Published:2010
Author:Yoichi Sonoda・Misako Kubo・Masahiko Matsue
We applied a method of identification of wild mammals using fecal DNA to an ex-post facto study of a road project. We identified hares on the Koshi Road, National
Highway 289, using fecal DNA and traced their movements between the two sides of the road. We also confirmed the use of road crossing facilities and found that hares
were using all facilities. It is assumed that hares move between forest margins to use raspberries as a food source.
Abstracts of the Society for Environmental Assessment 2010，pp155
Development of greening technology using forest topsoil
Year Published:2010
Author:Misako Kubo・Yoichi Sonoda・Yuko Takeda・Masahiko Matsue
The potential of forest topsoil as a revegetation material was investigated by germination experiments of buried seeds, and the vegetation that can be established on
the slope after revegetation is constructed was clarified, and a forest topsoil utilization method was introduced.
Civil engineering data，Vol.52，No.10，pp10-13
Current status and effectiveness of wildlife road crossing facilities
Year Published:2010
Author:Yoichi Sonoda・Masahiko Matsue
We summarized the current status of road crossing facilities for wildlife, and monitored the use of road crossing facilities by wildlife using infrared sensor cameras
on three roads: the Toyotomi Bypass in Hokkaido, the Higashi-Fujigoko Road in Yamanashi Prefecture, and the Gotsu Road in Shimane Prefecture, to clarify the
relationship between the shape of road crossing facilities and the species using them.
Civil engineering data，Vol.52，No.10，pp6-9
Research on effective utilization of the Important Public Facilities for Landscape System
Year Published:2010
Author:Takahiro Abe・Kamishima Kenji
The Important Public Facilities for Landscape System, established by the enactment of the Landscape Law, was expected to be utilized as a new system that contributes
to comprehensive landscape development. However, it is difficult to say that the system is currently being fully utilized. In this paper, we firstly grasp the actual
utilization of the Important Public Facilities for Landscape System based on a questionnaire survey of local governments and landscape planning organizations
nationwide and an analysis of the contents of their landscape plans, and then grasp and summarize the issues in utilizing the system. We then analyzed the measures to
utilize the Important Public Facilities for Landscape System based on the interview survey of landscape administrative organizations and public facility managers in
Kanagawa Prefecture who are making advanced use of the Important Public Facilities for Landscape System. Furthermore, based on the analysis of the advanced cases, we
discussed the points to be considered for the effective use of the Important Public Facilities for Landscape System, which contributes to the comprehensive landscape
formation.
Proceedings of the 6th Research and Presentation Conference on Landscape and Design，No.6，pp245-256
Research on the positioning of landscaping in technical standards for civil engineering structures
Year Published:2010
Author:Takeshi Inukai・Yuichi Kousaka・Takahiro Abe
In the installation and design of civil engineering structures, it is necessary to ensure the minimum safety of the structures by legally binding technical standards,
etc. In this study, the concept and specifics of how landscape considerations are positioned in these technical standards, etc., were identified across fields. As a
result, we found that there are no direct provisions on landscape except for ports and harbors, that the minimum necessary standards such as safety are stipulated in
the legally binding standards in all fields, and that they have discretionary nature. In addition, the trend toward performance-based technical standards in various
fields and the trend toward regional sovereignty have led to the revision of standards with a higher degree of discretionary power.
Proceedings of the 6th Research and Presentation Conference on Landscape and Design，No.6，pp263-268
Monitoring of road crossing facilities for wildlife to verify their effectiveness
Year Published:2011
Author:Yoichi Sonoda・Masahiko Matsue
In Japan, there are no examples of studies that clarify the structure, location, and number of road crossing facilities. We conducted monitoring of road crossing
facilities to clarify the relationship between the use of road crossing facilities by wild mammals, the structure of road crossing facilities, and the surrounding
landscape elements, as well as to present criteria for the installation of road crossing facilities.
Proceedings of the 10th Annual Conference on Wildlife and Transportation，No.10，pp109-114
Current Research on Roadkill, Barrier Effects and Mitigation Techniques in Wild Animals
Year Published:2011
Author:Yoichi Sonoda・Masahiko Matsue
In this study, we reviewed the current status of research on roadkill and barrier effects, conducted a survey of case studies of road crossing facility
installations, and compared them with overseas case studies to identify the future development of road ecology research and mitigation technology in Japan. In the
future, it is necessary to investigate the causes of roadkill, barrier effects, and the effectiveness and verification of road crossing facilities for various species
and taxa, develop mitigation techniques for forest mammals and amphibious reptiles, and develop quantitative monitoring techniques for wild animals using road
crossing facilities. The study was considered necessary to develop quantitative monitoring techniques for wildlife using road crossing facilities.
Landscape Studies online collection of essays，No.4，pp7-16
Trees supporting the local landscape -Conservation of trees of scenic importance
Year Published:2011
Author:Yasuo Izuka
Trees that do not fall under the category of academic, cultural, or resource values, such as special historic sites and natural monuments of scenic beauty or historic
sites and natural monuments of scenic beauty designated under the Cultural Property Protection Law, are designated under the Landscape Law (enacted in 2004), and are
now legally enforceable to ensure effective conservation and landscape maintenance. This paper describes the outline and conservation measures for the “trees of
scenic importance”, which are not considered to be of resource value.
TREE DOCTOR，No.18，pp43-47
Differences in the Effects of Selective Stripping Management on Vegetation Restoration in a Gravel Riverbed by the Time of Selective Stripping Management in a
Dominant Asteraceae Community.
Year Published:2011
Author:Yoriko Hatase・Hitomi Oguri・Masahiko Matsue
We conducted an experimental study to evaluate the effect of selective sampling on vegetation restoration in a gravel streambed. The number of viable seeds,
seedlings, flowering plants, and shoots of Asteraceae decreased significantly after four years of selective sampling regardless of the sampling period, suggesting
that the suppression effect of Asteraceae did not depend on the sampling period. The number of seeds, seedlings, flowering plants, and shoots decreased significantly
regardless of the time of sampling. On the other hand, the June sampling continued to restore the dominance of native perennial herbs, but the June and October
sampling significantly increased the dominance of non-native annual and biennial herbs and suppressed the recovery of native perennial herbs, suggesting that June
sampling was more effective in restoring vegetation.
Landscape Studies，Vol.74，No.5，pp473-478
Relationship between vegetation and slope attributes of revegetated slopes using forest topsoil
Year Published:2011
Author:Misako Kubo・Yuko Takeda・Masahiko Matsue
The relationship between the vegetation and the environment of the construction site and the attributes of the slope was investigated on vegetated slopes throughout
Japan where forest topsoil application works have been constructed. The actual status of the use of this method is unknown, so we also summarized the adoption status
of this method.
Lectures at the Congress of the Forestry Society of Japan，No.122，pp681
Study of vegetation on greening slopes
Year Published:2011
Author:Misako Kubo
This paper introduces to the field of vegetation science the research being conducted by the National Institute of Forestry and Forest Products Research (NIFF) on the
vegetation of green slopes using forest topsoil application works.
Vegetation Information，No.15，pp97-102
