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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean Institute of Landscape Architecture
Journal Basic Information
Journal DOI :
Korean Institute of Landscape Architecture
Editor in Chief :
Volume & Issues
Volume 16, Issue 2 - Nov 1988
Volume 16, Issue 1 - Jul 1988
Volume 15, Issue 3 - Feb 1988
Selecting the target year
Studies on Landscape Planting Design( I ) -With SpeciAl refErence to the Selection of til:es in the Landscape -
Journal of the Korean Institute of Landscape Architecture, volume 15, issue 3, 1988, Pages 1~10
The initial selection of plants is the decisive step in the ultimate success of any landscape planting. This study intended to establish a reasonable selecting criteria of tree in the landscape through the holistic consideration of aesthetic, functional, cultural, operational and ecological viewpoints. The matrices of evaluating the fitness of tree were modulated to 10 categories ; availability from the established nursery. aesthetic value, indigenous to the locality, maintenance, soil fertility requirement, environmental tolerances. growth rate. wild-life food production. use of plants in design and user's likes. This 10 categories were weighted to their fitness as high(10 points), medium(8 points) and low(5points). Thus suitable plants were identified which got 70 more points from total 100 points. Such a method was believed as a rational process to get trust from client. to persuade uneducated client and to be free from designer's prejudice through a case study. But it is important to landscape designer to recognize the relationship between the rationality which prevails throughout the modern technical world and the intuitive aspects of design that are essential for developing creative solutions to encourage creativity as well as analytical responsibility.
A Study on the Control of Wind Dispersal of Cotton-wrapped Seeds of Poplars and Willows
Journal of the Korean Institute of Landscape Architecture, volume 15, issue 3, 1988, Pages 11~19
The purpose of this study is to investigate ways to control the wind dispersal of contton-wrapped seeds of such poplars and willows as Poplus alba, P. tomentiglandulosa, P. euramericana, P. deltoides, and Salix pseudo-lasiogyne. These trees are hated by many people because of their seeds blowing all over the place during May. These cottony seeds can be nuisance to various types of outdoor activities, pose safely threat to drivers, become fire hazards during prolonged spring dry spells, and cause many types of health hazards of allergy such as sneezing. rhinitis, asthma, and skin rashes. Four control methods can be used to resolve the problem. First, pruning can be a solution, but it is unsatisfactory in terms of costs and outcome. Second, planting of male trees only can be a solution, but it is hard to identify sexes of saplings. Third, female trees can he replaced with other species. But it requires high costs and takes at least ten years to functionally replace the removed ones. As an alternative to such unsatisfactory control methods, the possibility of applying plant growth regulators has been investigated since 1983. During the pre-test, various concentrations and mixtures of them were either sprayed or injected, but failed to achieve any promising results. But the injection of a mixture made up of 0.75g of 2-chloroethane phosphonic acid with 0.2 mg of GA in 300cc water in the end of March produced premature falling of almost all aments and capsules of treated poplars and willows. It was found that the effect of the injection lasts two years. The results of the main experiment of 1987 can be summarized as follows ; First, the injection of the mixture of 2-chloroethane phosphonic acid and GA increases the premature abscisin of aments and capsules, thus reducing the wind dispersal of the cottony seeds of S. pseudolasiogyne, P. tomentiglandulosa, and P. euramericana 1644.09, 1200.61, and 1485.11 times, respectively, than that of the naural abscisin, It is estimated that the average number of wind-blown seeds reduced are approximatively 6,185,100, 4062,900, and 2,830,670 per tree, respectively. Second, the treatment causes no observable side effects on the growth of the samples tested.
Studies on the Analysis of Vegetational Community Structure and Administration Planning of the Royal Ancestor′s Shrine in Seoul
Journal of the Korean Institute of Landscape Architecture, volume 15, issue 3, 1988, Pages 21~31
This study was executed to investigate the vegetation structure and to propose the administration planning of the Royal Ancestor's Shrine. Five sites sampled in the study area with the clumped sampling method. Pinus koraiensis community covered 27.3% and Quercus aliena community 61.5% of total forest area when considering the actual vegetation. This area of environmental impact grade 3 and 4 area covered 46.9% and it should be restored. The ecological diversity, i.e. species diversity and evenness, showed low class, and especially site 2 which was controlled the user's after 1985 showed the lowest value. Pinus koraiensis community which is a dominant species now in the study area shall be succeed to Quercus aliena community. Robinia pseudoacacia at the eastern wall shall be excluded step by step and it shall be replaced with native species gradually. Ailanthus altissima, Populus
albaglandulosa and Styrax japonica which had higher selection invaded conspicuously the bare land. As the administration planning of the study area, Pinus koraiensis and Styrax japonica shall be thinned out gradually and it shall be replaced with Quercus aliena and Acer palmatum.
The Planting and Use of Landscaping Plants in Kangweon-Do
Journal of the Korean Institute of Landscape Architecture, volume 15, issue 3, 1988, Pages 33~50
This study was executed to find out how to improve on the planting and use of the plants in Kangweon- Do by surveying the planting areas -gardens, parks, streets, schools, etc. - in five cities of this province, and to select available native plants by surveying the main mountains in this province. The results are as follows ; 1. The species number within surrey areas was 319 species. and the species of which planting frequency was very high were Hibiscus syriacus, Juniperus chinensis, Buxus microphylla v. koreana, etc.. 2. The species number of school trees and flowers of 202 schools in Kangweon-Do were 33 species, 32 species respectively. and the species of school trees and flowers that showed the highest preference were Juniperus chinensis, Forsythia koreana each. 3. The species number of flowers and trees designated in 22 City and Keun were 14 species, 7 species respectively, and the species of flowers and trees that presented the highest designation frequency were Rhododendron schlippenbachii, Ginkgo biloba each. 4. The street trees planted along the main streets in Kangweon-Do were 18 species and 84,939 individuals, and the ratio of Populus alba
glandulosa was the highest among occurrence individuals. 5, As for the composition ratios of life forms of plants within survey areas, the ratio of deciduous broad-leaved tree was the highest as about 56% and that of deciduous coniferous tree was the lowest as about 1.6%. The ratios of native species versus exotic were 43 : 57 6. Through these results, it was thought that the diversification of planing species, the selection of plants suitable to each space and the generalization of use of native species were needed. So 254 plants native to Kangweon-Do were presented to correspond to these requirements.
A Study on Dry Matter Production and Growth Analysis of Herbaceous Ground Cover under Various Light Intensity - For Liriope spicata and Ajuga reptans -
Journal of the Korean Institute of Landscape Architecture, volume 15, issue 3, 1988, Pages 51~69
For the study of ecophysiological characteristics of herbaceous ground covers with shade tolerance, the primary productivity was investigated and the growth characteristics and their corelationship with environmental factors were analyzed in cultivate Liriope spicata and Ajuga reptans community from Hay to October of 1986. The installation of experimental plots were split into control plot(full sunlight). 50%. 32% and 12% light intensity by randomized block design method and each plot area was 150 ㎡. After the transplant, to take into account the edge effect of plant population, 30 plants were selected from each plot by random sampling every 10 day. Each sampled material was divided into leaves. stems, and roots dried in a drying oven at the temperature of 80
until it had constant weight and weighed. Chlorophyll content was analyzed by Mackinney method, T-N content by Kjeldahl method, carbohydrate content by Anthron method, and growth analysis was done by Blackman method. By analyzing the dry matter production and growth characteristics of the materials cultivated on the experimental field under the condition of different treatments. the following results were obtained. 1. In each plot of Liriope spicata and Ajuga reptans, the increasing rate in the number of leaves was high at the early stage of growth and LAI was remarkably high from the last ten days of August to September, LAI of Liriope spicata under 50% light intensity and of Ajuga reptans under 32% light intensity were remarkably high. LAI of each material under 12% light intensity was very lower in the process of growth. 2. All the experimental plots of each material showed high increasing rate of standing crop from early in August to early in september. In the process of growth, Liriope spicata under 50% light intensity and Ajuaga reptans under 32% light intensity showed highly increasing rate. There existed positive relationship between standing crop and LAI with high significance. 3. Total chlorophyll contents of each material were increased in proportion to lower light intensity and their chlorophyll(a) content was 2.3 times as much as those of chlorophyll(b).