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KMID : 1024520220310010043
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Journal of the Environmental Sciences
2022 Volume.31 No. 1 p.43 ~ p.50
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Observation of Moisture Fluctuations in the Upper Canopy and the Ground Surface of Deogyusan-Flux
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Kim Yong-Kuk
Lee Bu-Yong
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Abstract
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In this paper, lysimeter was installed to analyze the moisture fluctuations on the surface of a forest. The weight of the soil was measured, and the moisture fluctuations were calculated through the difference in weight over time. The amount of dew condensation on the surface of the ground was about 2-7 mm. January experienced the most dew condensation (7.2 mm). It was found that about 43 mm of dew condensation was generated over one year. To analyze the characteristics of evapotranspiration in the forest, the evapotranspiration on the surface was measured by the lysimeter method and the evapotranspiration on the upper part of the canopy was measured by the eddy covariance method. These results were compared and analyzed. Until mid-October, the evapotranspiration of the forest was active, and the amount of evapotranspiration on the top of the canopy was higher than the amount on the surface. Thereafter, the amount of evapotranspiration on the top of the canopy decreased due to the lowering of temperature and net-radiation. The amount of evapotranspiration on the surface and above the canopy showed the same tendency.
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KEYWORD
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Condensation, Evapotranspiration, Flux, Lysimeter
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