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ID 629
file
creator
Naito, Kazuaki
subject
Conservation ecology
Flora
Iris rossii
Rural landscape
Sparse pine forest
Threatened plants
Vegetation management
abstract
Iris rossii Baker (Iridaceae) is one of the threatened plants growing in secondary grassland with sparse pine forest. The aim of this research is to investigate current status in a protected area for I. rossii population, and obtain knowledge for conservation of the population. The flora of vascular plants and vegetation were investigated in the protected area for I. rossii in Hofu City, Yamaguchi Prefecture. Investigations were mainly carried out in June and November 1990 at the three different habitats. As a result, a total of 153 species of 62 families were recorded in whole area. Only Erigeron sumatrensis was recorded as a naturalized plant species in the protected area in 1990. Species composition of the closed forest area, where no I. rossii were found, was different from those of the sparse forest area and the grassland area. Therophytes and hemicryptophytes were seen mainly in the grassland area. Nanophanerophytes, microphanerophytes, mega- and mesophanerophytes and lianas were mainly in the closed forest area. Two vulnerable species, I. rossii and Calanthe discolor listed in the Red Data Book and seven designated species including I. rossii listed in the national and quasi-national parks in Japan were found to have grown mainly in the grassland area and the sparse forest area.
journal title
Memoirs of the Faculty of Integrated Arts and Sciences, Hiroshima University. IV, Science reports
volume
Volume 19
start page
19
end page
37
date of issued
1993-12-31
publisher
広島大学総合科学部
contributor
国立情報学研究所
date of created
2006-03-21
issn
1340-8364
ncid
SelfDOI
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Integrated Arts and Sciences
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