• Korean Journal of Environment and Ecology
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• v.29 no.6
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• pp.947-951
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• 2015

This study presents proper irrigation interval for the soil condition of green roof system and the smooth growth of the landscaping herbaceous plants available and reveal the need for irrigation in rooftop conditions. Twenty kinds of greenery plants are tested on ground paved wood panels where rain and wind shielder is installed. Before test, irrigation is conducted fully to experimental plants and then soil moisture in pot is measured after every ten minutes. In conclusion, it is suggested that the irrigation has to be carried out every 4~5 days in order to minimize water and heat stress of plants. Also, irrigation management is an essential prerequisite for good condition and the smooth growth of plants and environmental effects in green roof system.

• Journal of the Korean Institute of Landscape Architecture
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• v.46 no.1
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• pp.96-105
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• 2018

This study examined the growth of herb plants in response to irrigation on a green rooftop area in order to select herb plants that can be used for rooftop greening. Apple Mint (Mentha suaveolens), Lemon balm (Melissa officinalis), Spearmint (Mentha spicata), Pineapple sage (Salvia elegans), Choco Mint (Mentha ${\times}$ piperita 'Choco Mint'), Ox-eye Daisy (Chrysanthemum leucanthemum), Roman Chamomile (Anthemis nobilis) and Thyme (Thymus vulgaris) showed increased growth when irrigated. Conversely, Lavender (Lavendula angustifolia ), Peppermint (Mentha ${\times}$ piperita ), Vicks Plant (Plectranthus tomentosa), Feverfew (Tanacetum parthenium), Rosemary (Rosmarinus officinalis), Tansy (Tanacetum vulgare), Lemon Verbena (Aloysia triphylla), Heliotrope (Heliotropium arborescens), Soapwort (Saponaria officinalis) and Lady's mantle (Alchemilla vulgaris) demonstrated satisfactory growth regardless of irrigation. Peppermint, Tansy, Lemon Verbena, Soapwort, and Lady's mantle seem to be suitable for green rooftop because of their overwintering ability and drought hardiness. Pineapple sage, Apple Mint and Thyme would seem to be inappropriate for rooftop greening because they showed negative growth response to drought and failed overwintering. Although Spearmint, Lemon balm, Choco Mint, Ox-eye Daisy and Roman Chamomile had reduced growth during dry conditions, they were able to overwinter satisfactorily and can be used as rooftop plants with irrigation.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2003.05a
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• pp.341-342
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• 2003

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2006.10a
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• pp.257-260
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• 2006

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2012.03a
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• pp.183-186
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• 2012

• Journal of the Korea Institute of Building Construction
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• v.11 no.2
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• pp.189-199
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• 2011

Installation of a proper root barrier in a green roof system is very important in order to protect the concrete slab of roof and the root penetration in the waterproofing layer. To select the proper root barrier materials and methods, it is necessary to understand the environmental conditions affecting the waterproofing-root barrier system in green roof construction site. Therefore, we suggested as the environmental performance indexes four kinds of performance requirements; root penetration, chemical attack by chemical agent or fertilizer, load impact by soil depth and size of plant, and water pressure. The related four test methods were suggested for the inspection of these performance indexes. In this research, we could suggest for kinds of test methods as standard test methods to evaluate the environmental performance of waterproofing-root barrier for greening roof system.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.1 no.1
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• pp.45-53
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• 1998

This study was conducted to investigate the ornamental, ecological, and using characteristic of Korean indigenous perennials of 100 species through observation in native region and in farm. The results were as follows : All of the species were divided into seven groups according to landscape use. Among Korean native perennials, Dicentra spectabilis, Dianthus superious var. longicalycinus, Aster koraiensis, Caryopteris incana, Ixeris stolonifera, Lilium, Chrysanthemum, Sedum, Potentilla, Hosta, Hemerocallis, and Liliope have high and long ornamental values regardless of flower. And they can be planted in any place of Korea.

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2006.04a
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• pp.105-109
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• 2006

• Korean Journal of Environment and Ecology
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• v.22 no.6
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• pp.640-647
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• 2008

This study was carried out to select the utilizable plants for the slope revegetation in dams, lakes and streams. In this study, 4 Iris species were investigated for their survival and growth characteristics in the complete and partly flooding condition with various flooding periods. The results are as followings; Iris pseudoacorus showed the highest flooding tolerance based on survival rate and growth condition. Iris ensata var. spotanea, I. setosa and I. nertschinskia followed after Iris pseudoacorus in the order of flooding tolerance. When I. pseudoacorus were completely submerged in the water, their growth was disturbed but they did not die up to 120 days. On the other hand, I. nertschinskia, I. setosa and I. ensata var. spotanea showed a significant growth disturbance in the complete water submergence and died in 90 days. This explained that they were relatively strong in flooding tolerance. They are considered to grow back to normal with some changes of water level.

• Proceedings of the Korean Society of Environment and Ecology Conference
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• autumn
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• pp.70-74
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• 2004