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http://dx.doi.org/10.12791/KSBEC.2014.23.2.95

Current Status and Development of Greenhouse Models for Oriental Melon Cultivation in Seongju Region  

Lee, Jong Won (Institute Agricultural Science & Technology, Kyungpook National University)
Baek, Chul Heun (Kyungpook Water-melon Industry-University-Institute Cooperation Agency)
Lee, Hyun Woo (Department of Agricultural Civil Engineering, Kyungpook National University)
Chung, Sung Won (Department of Bio Industrial Machinery Engineering, Pusan National University)
Publication Information
Journal of Bio-Environment Control / v.23, no.2, 2014 , pp. 95-108 More about this Journal
Abstract
The objective of this study is to develop the plastic greenhouse models which are structurally safe under the weather condition of Seongju and have the dimensions suitable for oriental melon cultivation as well. To grasp the structural features of greenhouses in Seongju, the field survey was conducted on 406 farmhouses which included 2,068 greenhouses. The field survey showed that the roof shape of arch type accounted for the highest rate, but recently even span or peach type became more popular and the width and height of greenhouse tended to increase as the period of use was short. The relationship of the width, ridge height and eaves height were established based on field survey data. Using climate data of Gumi adjacent to Seongju, the regressions were determined for the design wind speed and design snow depth depending on recurrence period. To design the greenhouse models against weather disasters in Seongju, the optimal design loads are 23.7 cm of snow depth and $33.8m{\cdot}s^1$ of wind speed. As the design results, four models of single-span greenhouse, two models of double-span greenhouses including extension were developed.
Keywords
design snow depth; design wind speed; disaster endurance type; section shape; recurrence period;
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