• Korean Journal of Environment and Ecology
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• v.12 no.1
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• pp.91-101
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• 1998

Two large communities of Vicex rotundifolia were discovered for the first time at the beach of Pyonsanbando National Park. The growth environment and morphological characters of the communities were examined and analyzed to provide some basal data which would be helpful to establish measures for protection and to utilize the communities rationally. The results are as follows; The habitats of Vitex rotundifolia are located at Chakeundang beach of Kyokpo-ri and Kosapo beach of Woonsan-ni, Pyonsan-myon in Pyonsanbando National Park. The total area of this two communities was measured to be 2,755m$^{2}$ and 523m$^{2}$ of it was damaged. Two varieties, 49 species, 43 genera and 28 families as trees and shrubs were collected from inside of and the vicinal areas of the communities. Koelreuteria paniculata and Rosa rugosa were discovered and collected in these areas for the first time to be documented with the communities of Vitex rotundifolia. The largest individual of Vitex rotundifolia within the polulations reaches or 3.5cm in diameter at root collar and 6m in length of the runner on aboveground. The individuals of Vitex rotundifolia within the communities show good growth condition which the mean leaf length was measured to be 4.5cm, the mean leaf width 3.3cm, the mean leaf area 11.8cm$^{2}$ and the mean flower length 10.0cm. Vitex rotundifolia has been mostly recorded to be an evergreen shrub. But the present study discovered that it is rather deciduous.

• The Korean Journal of Ecology
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• v.23 no.5
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• pp.383-389
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• 2000

A comparative analysis on the Viticetea rotundifoliae (coastal dune shrub vegetation) in South Korea and Japan was carried out. 569 releves from the most typical and homogeneous stands of the coastal dunes in South Korea and Japan were used. This study was accomplished by using the syntaxa and hierarchical system of the Viticetea rotundifoliae in South Korea and Japan according to the Zurich-Montpellier School's method, and syntaxonomy, synecology, syndynamics and syngeography between two countries were also compared with. Coastal dune shrub vegetation in South Korea and Japan were defined to the Viticetea rotundifoliae representing southern type coastal shrub in Northeast Asia. Coastal dune shrub communities of the Viticetea rotundifoliae in South Korea and Japan are considerably corresponded between the two, and contain their own characteristic syntaxa. Coastal dune shrub communities of the Viticetea rotundifoliae in Japan showed much diversification in syntaxa and species composition than those in South Korea.

• Journal of the Korean Chemical Society
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• v.58 no.6
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• pp.686-690
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• 2014

• The Korean Journal of Ecology
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• v.23 no.3
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• pp.193-199
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• 2000

The research about distributional characteristics of coastal mantle communities in South Korea was accomplished. This study was carried out by direct analysis of the latitude and temperatures of each releve site on the basis of syntaxonomy and hierarchical system of coastal mantle communities which was already obtained from Zurich-Montpellier School's method. The distribution of coastal mantle communities in South Korea appeared from North to South in the order of Rosa rugosa community, Vitex rotundifolia community, the Linario-Viticetum rotundifoliae, the Roso-Viticetum rotundifoliae and the Imperato-Viticetum rotundifoliae, and it was recognized that tendencies of continuous and overlapped distribution pattern in adjacent syntaxa. Consequently, It is suggested that the syntaxonomical, geographical and bioclimatic informations of Japan, North Korea and China are essential to determine the distributional patterns of coastal mantle communities in Korean Peninsula.

• Korean Journal of Environment and Ecology
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• v.29 no.6
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• pp.842-849
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• 2015

This study investigated the effects of rare-earth fertilizer on the shoot cuttings' rooting of Vitex rotundifolia L. and Tamarix chinensis Lour. The shoot cutting test was carried in 2008 and the main results are summarized as follows. The rate of rooting and the average roots increased in both number and length when rare-earth fertilizer is treated in V. rotundifolia and T. chinensis in comparison to those of the untreated control plot. In particular, when rare-earth fertilizer is diluted with water 1/2500, the rooting outstandingly increases. This result is almost similar to the effect of the rooting stimulant, IAA. Although there is no differentiation in its rooting rate according to the density, the rooting of T. chinensis shows a 100 percent effect on in the entire treated plot but not in the untreated control plot, so it is usable as a rooting stimulant. As for shoot cuttings' rooting, depending on the time immersed in diluted solution of rare-earth fertilizer, both V. rotundifolia and T. chinensis showed relatively higher percentages in all treatment plot immersed for 60 minutes than for 10 minutes. In conclusion, considering the results of the rooting percentage and the average number and length of roots of V. rotundifolia and T. chinensis, the shoot cuttings' rooting appeared higher in percentage when they were immersed in the rooting stimulant for sixty minutes with a lower density than 1/2500. This result shows that rare-earth fertilizer can be utilized as an alterative for IAA rooting stimulants currently available in the market.

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2003.04a
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• pp.17-21
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• 2003

• Proceedings of the Korean Society of Environment and Ecology Conference
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• autumn
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• pp.43-45
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• 2004

• Korean Journal of Environment and Ecology
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• v.23 no.6
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• pp.499-505
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• 2009

This study was carried out to investigate and evaluate the vegetations in the coastal dunes in the vicinity of swimming beaches on the East Sea, South Korea, and the vegetations that were investigated are as follows: Carex pumila community, Cynodon dactylon community, Zoysia macrostachya community, Rosa rugosa community, Vitex rotundifolia community and Carex kobomugi typical community. Some of these vegetations, such as Carex kobomugi, Calystegia soldanella, Ixeris repens, Elymus mollis, Lathyrus japonica, and Glehnia littoralis were found to be differential species which belongs to Caricion kobomugi of Glehnietea littoralis. It was also discovered that Vitex rotundifolia community was the most heterogeneous among vegetation communities of the coastal dunes surrounding swimming beaches, and Zoysia macrostachya community was most closely linked to the typical coastal dune vegetation community. Finally, Rosa rugosa community and Vitex rotundifolia community seemed to have formed near the hinterland of coastal dunes and swimming beaches respectively because of certain unnatural disturbances such as construction of buildings and facilities or natural disasters.

• Journal of Korea Foresty Energy
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• v.23 no.1
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• pp.26-37
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• 2004

This study was to investigate the rational propagation of the Vitex rotundifolia, which is distributed as a community naturally at coastal area in Korea. The germination rate of ordinary temperature stored fruits was the highest with 67%. In the matter of the number of seedlings per fruit, 1 seed germinated fruit was the most with 40.3 % and the mean was 1.4 seedlings per fruit. The best rooting rate of both greenwood and hardwood cutting was 96.7% in the case of cuttings soaked in IBA 2500ppm for 1 minute on the Compost+Sand bed-soils. Generally the root development of cuttings was higher in the high IBA concentration with soaking in a moment than in the low IBA concentration with soaking in long time, and bed-soils mixed with sands and composts. And in the rooting rate, greenwood cutting was better about 10% than hardwood cutting of Vitex rotundifolia.

• Journal of Life Science
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• v.26 no.7
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• pp.782-788
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• 2016

To check the possibility of using natural extracts for cosmetic substances, we tested the bioactive effects of 11 crude extracts originating from native plants grown in the Republic of Korea on anti-oxidant and anti-wrinkle activities. When DPPH scavenging activities were measured, the crude extracts of Vitex rotundifolia, Scirpus triangulatus, S. wichurae, S. tabernaemontani, and Aeschynomene indica assays had more than 70% of DPPH scavenging activities at 100 μg/ml concentration. The data from the hydrogen peroxide scavenging assay revealed that the crude extracts from the 10 species, except for Eleocharis mamillata var. cyclocarpa, could scavenge more than 90% at 1,000 μg/ml concentration. The crude extract of V. rotundifolia had the highest xanthine oxidase scavenging activity at a 1,000 μg/ml concentration. Based on the four anti-oxidant assays, the crude extracts of V. rotundifolia, S. triangulatus, S. wichurae, S. tabernaemontani, and A. indica were shown to have excellent anti-oxidant capacities overall. In addition to the anti-oxidant capacities, the crude extract from S. wichurae exhibited high collagenase inhibitory activity, therefore, it could be a promising candidate for a cosmetic ingredient with anti-oxidant and anti-wrinkle qualities. The results of this study indicate that many wild plants native to the Korea Peninsula can be used as excellent natural substances for cosmetics based on their bioactive effects.