@article{oai:soar-ir.repo.nii.ac.jp:02001468, author = {荒瀬, 輝夫 and 内田, 泰三}, journal = {環境科学年報}, month = {Mar}, note = {Revegetation experiments using two terrestrial sedges (Carex oxyandra and C. satsumensis) from colonies on landslides, revealed their poor growth in the plot under shaded conditions (Arase et al. 2022). To maintain the sedge populations, one of two plans will be implemented: excluding trees for sunny grassland, or replacing the sedges with shade-tolerant species along with vegetation succession. In the present study, we focused on the shade tolerance of sedges, and collected data on habitat light conditions. For data, we examined herbarium specimens and their registration labels in the herbarium of the Faculty of Agriculture, Shinshu University. For comparison, specimens of gramineous species (Poaceae) were also examined. Light condition was evaluated by two standards: ‘vegetation’ and ‘the state of openness of vegetation’. A total of 143 specimens belonging to 56 Carex species and 232 specimens belonging to 138 Poaceae species, collected from 2003 to 2019, were examined. Compared with Poaceae species, percentage of the number of Carex species was significantly lower in the sunny habitat, higher in the forest whe re the upper tree layer was open along a road or river, and lower in the shaded habitat (binominal tests, p<0.05 to p<0.0001). These differences were considered to be caused by the existence of many Poaceae species of weeds and pasture grasses in the sunny habitat and bamboo grasses in the shaded habitat. Although there was a small number of Carex species in the shaded habitat, we suggest C. multifolia and C. aphanolepis as hopeful species for revegetation, judging from their growth characteristics and high habitat diversity., Article, 環境科学年報 45 : 1-5, (2023)}, pages = {1--5}, title = {スゲ属植物の耐陰性について}, volume = {45}, year = {2023} }