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http://dx.doi.org/10.5532/KJAFM.2012.14.2.071

Study on the Growth Environment of 'Gangwha-mugwort' Through the Climatological Characteristic Analysis of Gangwha Region  

Ahn, Joong-Bae (Division of Earth Environment, Pusan National University)
Hur, Ji-Na (Division of Earth Environment, Pusan National University)
Jung, Hae-Gon (Gangwha Agricultural Technology Service Center)
Park, Jong-Ho (Gangwha Agricultural Technology Service Center)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.14, no.2, 2012 , pp. 71-78 More about this Journal
Abstract
Eupatilin, one of representative medical components of mugwort, can be efficiently extracted from the 'Gangwha Sajabalssuk'. The Eupatilin content may depend on environmental factors such as soil and regional climate in addition to a genetic factor and Gangwha region has a profitable environmental condition for the mugwort growth. In this study, the climatological characteristics of Gangwha was analyzed in order to find the environmental condition of mugwort containing high Eupatilin in term of atmospheric, oceanographic and land variables. The climate of Gangwha is characterized by the relatively low daily temperature and large diurnal variation with plenty of solar radiation, long sunshine duration and less cloudiness. According to our correlation analysis, the long sunshine duration and the large diurnal temperature variation are highly correlated with the Eupatilin contents. The result implies that Gangwha has the favorable conditions for the cultivation and the habitat of the high-Eupatilin concentrated mugwort. Because of the sea surrounding Gangwha Island with low salinity and moderate wind, the salt contained in sea breeze is relatively low compared to other regions. Furthermore, Gangwha has clean atmospheric environment compared to other regions because the concentrations of toxic gases harmful to crop growth such as nitrogen dioxide ($NO_2$), sulfite gas ($SO_2$) and fine dust (PM-10) are lower in the air. The ozone ($O_3$) concentration is moderate and within the level of natural production. It is also found that moderately coarse texture or fine loamy soils known as good for water drainage and for the growth and cultivation of the 'Gangwha-mugwort' are distributed throughout the areas around mountainous districts in Gangwha, coinciding with those of mugwort habitat.
Keywords
Gangwha-mugwort; Eupatilin; Mugwort; Correlation analysis;
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