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http://dx.doi.org/10.5532/KJAFM.2019.21.3.187

Development of Korean SPAR(Soil-Plant-Atmosphere-Research) System for Impact Assessment of Climate Changes and Environmental Stress  

Sang, Wan-Gyu (National Institute of Crop Science, Rural Development Administration)
Kim, Jun-Hwan (National Institute of Crop Science, Rural Development Administration)
Shin, Pyong (National Institute of Crop Science, Rural Development Administration)
Baek, Jae-Kyeong (National Institute of Crop Science, Rural Development Administration)
Lee, Yun-Ho (National Institute of Crop Science, Rural Development Administration)
Cho, Jung-Il (National Institute of Crop Science, Rural Development Administration)
Seo, Myung-Chul (National Institute of Crop Science, Rural Development Administration)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.21, no.3, 2019 , pp. 187-195 More about this Journal
Abstract
The needs for precise diagnostics and farm management-decision aids have increased to reduce the risk of climate change and environmental stress. Crop simulation models have been widely used to search optimal solutions for effective cultural practices. However, limited knowledge on physiological responses to environmental variation would make it challenging to apply crop simulation models to a wide range of studies. Advanced research facilities would help investigation of plant response to the environment. In the present study, the sunlit controlled environment chambers, known as Korean SPAR (Soil-Plant-Atmosphere-Research) system, was developed by renovating existing SPAR system. The Korean SPAR system controls and monitors major environmental variables including atmospheric carbon dioxide concentration, temperature and soil moisture. Furthermore, plants are allowed to grow under natural sunlight. Key physiological and physical data such as canopy photosynthesis and respiration, canopy water and nutrient use over the whole growth period are also collected automatically. As a case study, it was shown that the Korean SPAR system would be useful for collection of data needed for understanding the growth and developmental processes of a crop, e.g., soybean. In addition, we have demonstrated that the canopy photosynthetic data of the Korean SPAR indicate the precise representation of physiological responses to environment variation. As a result, physical and physiological data obtained from the Korean SPAR are expected to be useful for development of an advanced crop simulation model minimizing errors and confounding factors that usually occur in field experiments.
Keywords
Climate change; Photosynthesis; SPAR Chamber;
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