||Zentaro Furukawa, Noriyuki Yasufuku, Kiyoshi Omine, Atsushi Marui, Evaluation of survival rate of Licorice (Glycyrrhiza uralensis Fisch) in semi-arid region by statistical analysis, Geotech HANOI 2019, 2019.11.
||Zentaro Furukawa,Noriyuki Yasufuku, Kiyoshi Omine, and Takanori Murakami, Water Absorption and Transportation Properties of Fibroid Materials in Unsaturated Ground, The 5th Korea-Japan Joint Workshop on Unsaturated Soils, 2018.05.
||Zentaro Furukawa, Noriyuki Yasufuku, Kiyoshi Omine, Atsushi Marui, Bayart Mandakh, Indree Tuvsintogtokh, Moisture Retention Effect of Greening Soil Material for Survival of Licorice (Glycyrrhiza uralensis Fisch.) in Mongolian Arid Land , The 8th Asian Joint Symposium on Geotechnical and Geoenvironmental Engineering (JS-Tainan 2016), 2016.11.
||古川 全太郎, 安福 規之, 大嶺 聖, 丸居 篤, Indree Tuvsintogotokh, Bayart Mandakh, Suitable Soil Water and Saline Environment for Survival of Licorice (Glycyrrhiza uralensis Fisch.) from Seeds, Desert Technology 12, 2015.11, Some cultural experiments were conducted by using GSM in southern Mongolia. The relationships between the germination and treating conditions of seeds, water/saline content, and survival of licorice could be found..
||Zentaro Furukawa, Noriyuki Yasufuku, Ren Kameoka, A Study on Effects and Functions of Developed Greening Soil Materials (GSM) for Combating Desertification
, The 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, 2015.11, The purpose of this research is to develop Greening Soil Material (GSM) by utilizing medicinal plant licorice in arid land. This paper presents the results of cultural experiment in non-habitat arid ground by using GSM..
||古川 全太郎, 安福 規之, 大嶺 聖, 丸居 篤, Bayart Mandakh, Indree Tuvsintogotokh, 亀岡 廉, Conditions of Developed Greening Soil Materials (GSM) for Survive of Licorice and Combating Desertification, The 6th Japan-China Geotechnical Symposium, 2015.08, The relationship between survival ratio of licorice and volume of GSMs (Greening Soil Material) , water content of GSMs, and calcium content of GSMs were revealed for combating desertification and preservation of medicinal plant licorice..
||Zentaro Furukawa, Noriyuki Yasufuku, Kiyoshi Omine, Atsushi Marui, Indree Tuvsintogotokh, Bayart Mandakh, Ren Kameoka, Settings and Geo-environmental Conditions of Developed Greening Soil Materials (GSM) for Cultivating Licorice (Glycyrrhiza uralensis) in Mongolian Arid Region, Second International Conference on Arid Land Studies (ICAL2), 2014.09, The purpose of this research is developing the sustainable and highly value-added anti-desertification method, which can accomplish geo-environmental improvement, conservation and utilization of local ecological resource in Mongolia. We developed pipe-shaped Greening Soil Materials (GSM), made of sand and compost which can be taken from Mongolian arid region. It can be made and installed in the ground easily and inexpensively. Moreover, it is characterized to have high water and nutrient retention capacity to support growing plants. Therefore, it is identified as simple self-watering system without any water supply. As the suitable plant for greening, we selected licorice (Glycyrrhiza uralensis) which is one of the most valuable medicinal plants growing in Mongolian and Chinese arid region. However, supply shortage and land degradation due to natural and human factors occur recently. Therefore, planting licorice by using GSM could be sustainable and high value-added greening. In this paper, in order to grasp the effects and functions of GSM, field cultural experiments were conducted in non-habitat of licorice without any irrigation except before setting for 4 or 9 months. The results are as follows; 1) Larger volume of GSMs could keep the survival rate of licorice higher than smaller types. 2) The conditions setting GSMs vertically and horizontally were same effects for survival rate of licorice. 3) Artificial compost (UB) could keep the survival rate of licorice about 1.4 times higher than animal fertilizer (LC). 4) At the range of these experimental conditions, 20 – 25 g/pot of CaCO3 could keep the highest survival rate..
||古川 全太郎, 大嶺聖, 安福 規之, 小林泰三, 清塘悠, IN-SITU INVESTIGATION OF GEO-ENVIRONMENT IN ARID LAND WHICH LICORICE GROWS WILDLY AND A CONSIDERATION FOR ADDED VALUE GREENING, 4th Japan-Korea Geotechnical Engineering Workshop, 2011.07, Desertification problems are remarkable recently. These problems can be solved by geo-environmental viewpoint. Coping with greening, this research paid attention to the medicinal plant licorice. It lives in semi-arid lands and its root which contains active ingredient is highly demanded. Value added greening which brings up licorice in arid land enables sustainable development to be succeeded. This research was conducted in-situ investigation to grasp soil water and nutritive condition of arid land. In addition, from the result of those investigation and cultivation experiment in Japan, as the fundamental consideration for value-added greening, this research conducted several cultivation experiments to promote initial cultivation of licorice and take root more quickly in the ground simulated sand by using pipe-shaped pot. This research was concluded that 1) Wild licorice in semi-arid land lives under law water and nutrition in the ground by growing its root to catch the groundwater and nutrition as much.2) Young licorice could not grow better in Japan by using only silica sand, which is similar to Mongolian soil than the individuals cultivated by potting compost.3)Using pipe-shaped pot is effective for greening because licorice grows bigger and longer than the individuals cultivated by simulated ground and keep growing their root into the simulated ground..
||古川 全太郎, 大嶺聖, 安福 規之, 小林泰三, 清塘悠, 新開敦, Geo-environmental investigation of vegetated area for licorice and fundamental consideration for greening by using pipe-shaped pot, The 1st International Conference on Arid Land , 2011.05, This research is conducted for seeking the way of value added greening and stopping desertification. In order to accomplish these purposes, in-situ investigation was conducted to grasp soil condition of arid land where licorice known for remarkable medicinal plant lives naturally. And based on the results of the investigation and cultural experiment in Japan, fundamental consideration for greening by cultivating licorice and using “pipe-shaped pot” was conducted. This research was concluded that 1) Wild licorice can live around 10 % of volumetric water content of ground within the depth of 1 m, 2) Wild licorice can live low nutrition environment, 3) From the results of cultivation experiment in Japan, young licorice grew well under much moisture and nutrition in the ground, and 4) From the results of application for greening by using pipe-cultivation, it was suggested that young licorice can grow well and height of 10 cm pipe was enough to support initial growth..
||古川 全太郎, 大嶺聖, 安福 規之, 小林泰三, Influences of soil condition on growing Kanzo(Glycyrrhiza uralensis) using pipe-shaped pot, 3rd Japan-Malaysia Symposium on Geohazards and Geoenvironmental Engineering –Geotechnical & Ecological Environmental Management for Global Sustainability, 2009.11, Kanzo is one of important medicinal plants in the Japanese Medical Industries because it
has been used in about 70% herbal medicine. Japan imported 100% of Kanzo mainly from China so that
cultivation in Japan. This paper presents the influences of soil water, types of soil and liquid nutrient on
growth of Kanzo cultivated by using pipe-shaped pot. The experimental results indicate that (1) the soil in
alkaline condition is suitable for cultivating Kanzo, (2) when concentration of fertilizer is low,
evapo-transpiration velocity becomes greater, (3) Kanzo cultivated using the decomposed granite soil and
1/8th concentration of standard liquid fertilizer is the highest content of Glycyrrhizin (GL). On the other
hand, the root length of Kanzo with high GL content was shorter than that of other conditions..