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http://dx.doi.org/10.5532/KJAFM.2010.12.2.132

Analysis of Meteorological Elements in the Cultivated Area of Hadong Green Tea  

Hwang, Jung-Gyu (Institute of Hadong Green Tea)
Kim, Jong-Cheol (Institute of Hadong Green Tea)
Cho, Kyoung-Hwan (Institute of Hadong Green Tea)
Han, Jae-Yoon (Institute of Hadong Green Tea)
Kim, Ru-Mi (Institute of Hadong Green Tea)
Kim, Yeon-Su (Institute of Hadong Green Tea)
Cheong, Gang-Won (Institute of Hadong Green Tea)
Kim, Yong-Duck (Institute of Hadong Green Tea)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.12, no.2, 2010 , pp. 132-142 More about this Journal
Abstract
Characteristics of meteorological elements were analyzed at Hwagae and Agyang where are the representative areas of Hadong green tea cultivation in Korea. An automatic weather monitoring system (AWS) and a simple data log were employed to measure meteorological data such as temperature, relative humidity, precipitation, and wind direction and speed for 2009. The annual average air temperature of Hwagae and Agyang was 14.5 and 14.2, respectively, showing the warmest month in August ($25.4^{\circ}C$ for Hwagae and $24.9^{\circ}C$ for Agyang) and the coldest month in January ($0.3^{\circ}C$ for Hwagae and $0.2^{\circ}C$ for Agyang). Annual average of daily temperature difference (= daily maximum temperature - daily minimum temperature) was $11.3^{\circ}C$ for Hwagae and $11.1^{\circ}C$ for Agyang. Hwagae and Agyang had 62.7% and 65.3% of the annual average relative humidity, respectively. Annual precipitation was 1387 mm for Hwagae and 1793 mm for Agyang of which were higher of 605mm for Hwagae and 835 mm for Agyang compared to that in 2008. Majority of precipitation occurred between May and August, attributing 77.6% for Hwagae and 76.6% for Agyang to the annual precipitation. The annual total sunshine duration was 2054.3 hrs in Hwagae with the longest monthly sunshine duration in May (235.1 hrs) and the shortest monthly sunshine duration in July (102.5 hrs). Dominant wind direction changed seasonally from northwesterly wind in fall and winter to southeasterly wind in spring and summer. The annual average wind speed was 1.5 m $s^{-1}$ with the highest monthly wind speed of 2.0 m $s^{-1}$ in December and the lowest monthly wind speed of 1.1 m $s^{-1}$ in February. It is expected that continuous observation and assessment of meteorological data will improve our understanding of optimal environmental conditions for green tea cultivation and be used for developing models of green tea cultivation in the Hadong area.
Keywords
Green tea; Cultivation; Meteorological element;
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Times Cited By KSCI : 2  (Citation Analysis)
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