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한승원,방광자 한국화훼연구회 1996 화훼연구 Vol.5 No.1
The purpose of this study was to analyse the effect of air purification by interior plants during photosynthesis. Plants typically obsorb CO2 and release O2 while it was illuminated. The results are as follows : 1.The amount of CO2 absorption was largest, when the light level was highest in a day. 2.The CO2 decreasing rate per unite area was measured with interior plants such as Pachira aquatica, Ficus benjamina, and Dracaena deremensis. The Pachira aquatica showed the highest level of CO2 decreasing rate. 3.The plants that cause high humidity were Dracaena deremensis(91%) and Ficus benjamina(90%). 4.10 species of interior plants such as Ficus benjamina, Dracaena deremensis, Pachira aquatica, Scindapus aureus, Nephrolepis cordifolia, Hedera helix, Cyrtomium falcatum, Farfugium japonicum, Ardisia japonica and Viburnum awabuki - were treated with 0.5% CO2 (0.500%) at the constant light level, 3,000 lux. After six hours, CO2 decreasing-rate of each plant were measured. Viburnum awabuki(15.77,ppm/cm2) showed the highest rate, followed by Farfugium japonicum(15.77,ppm/cm2), Pachira aquatica(4.69,ppm/cm2), Cyrtomium falcatum(4.35,ppm/cm2), Scindapus aureus(2.67,ppm/cm2), Ardisia japonica(2.27,ppm/cm2), Dracaena deremensis(1.38,ppm/ cm2), Nephrolepis cordifolia(1.34,ppm/cm2), Ficus benjamina(0.91,ppm/cm2) and Hedera helix(0.33,ppm/cm2). 5.The CO2 releasing- rate of each plant at the night was also measured. Pachira aquatica(1.54,ppm/cm2) showed the highest rate, followed by Dracaena deremensis(0.75,ppm/cm2), Ficus benjamina(0.26,ppm/cm2), Scindapus aureus(0.42,ppm/cm2), Viburnum awabuki(0.42,ppm/cm2), Cyrtomium falcatum(0.32,ppm/cm2), Hedera helix(0.07,ppm/cm2), Nephrolepis cordifolia(0.06,ppm/cm2), Farfugium japonicum(-0.09,ppm/cm2) and Aridisia japonica(-0.19,ppm/cm2). However, the CO2 releasing rate of interior plant at the night was very low compaed to the CO2 absorption rate of these in the daytime.
서울 강남지역의 高級 住宅庭園에 있어서 造景樹木 植栽現況에 관한 硏究
이민영,방광자,설종호,조근호 한국화훼연구회 1996 화훼연구 Vol.5 No.2
The planting trends, preferences of landscape plants and management type of private gardens were surveyed with centering around Bang-Bae Dong, Seo-Cho Gu, Seoul, Korea. The total number of landscape plants observed were 37 families 56 genus 91 species and the average species number per house was 16. Acer palmatum was observed most frequently and Rhododendron poukhanense, Buxus microphylla var. Koreana, Pseudocydonia sinensis and Pinus Densiflora followed it. The species number of deciduous tree were more than evergreen, but in whole planting frequency evergreen more vice versa. Between trees and shrubs, the species number of trees were more than shrub, and shrubs were more in planting frequency. The ratio of indigenous and introduced plants were 48% and 52% respectively. The garden owners premiered Syringa vulgaris pinus densiflora, Lagerstroemia indica, Rhododendron poukhanense and Ziziphus jujuba var. inermis to any other species. In management type of private garden, agent, self, and mixed were 40, 35 and 25% respectively.
Growth Characteristics of Cyrtomium falcatum as an Indoor Plant under Various Light Condition
Kwang Ja Bang,주진희,Seung Won Han 한국원예학회 2004 Horticulture, Environment, and Biotechnology Vol.45 No.3
The objective of this research was to identify adequate light conditions for the growth of Cyrtomium falcatum during the exploitation as an indoor plant. Four levels of shading and four different artificial light treatments were employed to C. falcatum. The growth of the plant was best with 70% shading (18.5 máolm2ás1) and relatively good with 90% shading (9.3 mol•m2•s1), indicating the possibility of growing under indoor light conditions. Under fluorescent light at 30 ± 3 mol•m2•s1, the growth was better than under sun light at 20 ± 2 mol•m2•s1. These results suggest that C. falcatum is naturally adapted to indoor light conditions. Thus, it can be concluded that C. falcatum is easily cultivated under indoor light conditions with supplemental artificial light.
Growth Characteristics of Cyrtomium falcatum as an Indoor Plant under Various Light Conditions
Kwang Ja Bang,Seung Won Han,Jin Hee Ju 한국원예학회 2004 Horticulture, Environment, and Biotechnology Vol.45 No.3
The objective of this research was to identify adequate light conditions for the growth of Cyrtomium falcatum during the exploitation as an indoor plant. Four levels of shading and four different artificial light treatments were employed to C. falcatum. The growth of the plant was best with 70% shading (18.5 ㎛ㆍolm?²ㆍs?¹) and relatively good with 90% shading (9.3 μmolㆍm?²ㆍs?¹), indicating the possibility of growing under indoor light conditions. Under fluorescent light at 30±3 μmolㆍm?²ㆍs?¹, the growth was better than under sun light at 20±2 μmolㆍm?²ㆍs?¹. These results suggest that C. falcatum is naturally adapted to indoor light conditions. Thus, it can be concluded that C. falcatum is easily cultivated under indoor light conditions with supplemental artificial light.
하천에 있어서 자연성의 보전 , 정비 , 창출에 관한 연구 2 - 원성천과 풍서천의 하천식생구조를 대상으로 -
방광자(Kwang Ja Bang),이진희(Jin Hee Lee),설종호(Jong Ho Sul),강현경(Hyun Kyung Kang),박성은(Sung Eun Park) 한국환경영향평가학회 1998 환경영향평가 Vol.7 No.2
This study was performed to build up the ecological guidelines to grasp the structure of the vegetation change which is due to river rehabilitation. Anyway, river ecosystem and function has been destroyed owing to river development. It is important that river vegetation supplies ecological corridor and biotope. Two survey sites(Wonsungcheon and Pungseocheon)were investigated in the aspect of plant ecosystem and structure to settle the practical concept of river ecosystem. Each survey site was subdivided to five plots. The site was surveyed through the belttransect method. Wonsungcheon gets more seriously polluted as it runs to the urban area. In other words, there are On the other hand, Pungseocheon has more naturality but its downstream is under the pressure of various wood plants in the upstream area, but downstream area is dominated by naturalized plants such as Bidens frondosa, Panicum dichotomiflorum, etc. Riverbank of downstream has been changed into farm and parking lot. development. It should be preserved definitely because it still has abundant naturality and wetland which formed a biotope. The objective of the research is to find out the river retrogression and maintenance methods based on the riparian vegetation structure. To manage the river ecologically, hydrophytes should be induced partly for natural purification after the riverside is rehabilitated. The vegetation should be induced step by step to restore natural river and steady monitoring and research are required.
방광자 ( Kwang Ja Bang ),주진희 ( Jin Hee Ju ),박미옥 ( Mi Ok Park ) 상명대학교 산업과학연구소 2006 産業科學硏究 Vol.- No.19
This study was conducted to investigate the photosynthetic response pattern of 7 foliage plant species, usually, that is used by indoor plant. Result of photosynthesis pattern analysis, Nephrolepis exaltata and Schefflera arboricola are plant species that the photosynthesis rate prefers high light intensity according as intensity increases. Ficus benjamina accomplished light saturation point in intensity 150μmol·m-2·s-1, and this time photosynthesis rate measured by 2.11μmolCO2·cm-2·s-1. Epipremnum aureum accomplished light saturation point in intensity 70μmol·m-2·s-1, and this time photosynthesis rate measured by 2.27μmolCO2·cm- 2·s-1. Pachira aquatica accomplished light saturation point in intensity 50μmol·m-2·s-1, and this time photosynthesis rate measured by 1.26μmolCO2·cm-2·s-1. Spathiphyllum cannifolium and Aglaonema brevispathum increases the photosynthesis rate comparatively gently despite intensity increases continuously and this result showed that two species was strong in low intensity.