應用紅外線熱像技術評估受食植昆蟲吸食樟樹葉片溫度之變異

Using Infrared Thermal Imaging for Detecting Temperature of Phytophagy Sucked Camphor Tree Leaf

10.30064/QJCF.201103.0004

陳源郅(Yuan-Zhi Chen)；林謙佑(Qian-You Lin)；鍾智昕(Chih-Hsin Chung)；林世宗(Shu-Tzong Lin)；張東柱(Tun-Tschu Chang)；林振榮(Cheng-Jung Lin)

食植昆蟲 ； 樟樹 ； 紅外線熱像技術 ； 葉片溫度 ； Phytophagy ； Camphor tree Cinnamomum camphora ； Infrared thermal imaging ； Leaf temperature

中華林學季刊

44卷1期（2011 / 03 / 01）

29 - 39

繁體中文

Infrared thermal imaging techniques are applied to indicate surface temperature of plants. In this study, we observed the temperature of solid leaf and phytophagy (Trioza camphorae and Aulacaspis yabunikkei) sucked leaf of camphor tree (Cinnamomum camphora) by infrared thermal imaging techniques. Significant differences in the solid leaf temperature of camphor tree were observed in morning (27.6℃), noon (36.6℃), and night (29.5℃) by one way ANOVA and Tukey test. Moreover, there were no significant differences in the leaf temperature at different leaf positions (base, center, apex, side) by ANOVA. The phytophagy sucked leaf (damaged and undamaged) temperatures were higher (28.2 and 28.0℃) than solid leaf temperature (27.9℃) of sampled trees by ANOVA and Tukey test. There was no significant difference in the leaf temperature between leaf upper surface and lower positions by t-test. When air temperature and relative humidity were steady, the sucked leaf temperatures were higher than solid leaf temperature from the measurements of infrared thermal imaging during 24-hr. Correlations between the solid leaf, sucked leaf, and air temperatures could be represented by positive linear regression formulas. Also, the leaf temperature was significantly influenced by air temperature and relative humidity. These results can provide practical application for tree or seedling health evaluation and management by infrared thermal imaging.

Infrared thermal imaging techniques are applied to indicate surface temperature of plants. In this study, we observed the temperature of solid leaf and phytophagy (Trioza camphorae and Aulacaspis yabunikkei) sucked leaf of camphor tree (Cinnamomum camphora) by infrared thermal imaging techniques. Significant differences in the solid leaf temperature of camphor tree were observed in morning (27.6℃), noon (36.6℃), and night (29.5℃) by one way ANOVA and Tukey test. Moreover, there were no significant differences in the leaf temperature at different leaf positions (base, center, apex, side) by ANOVA. The phytophagy sucked leaf (damaged and undamaged) temperatures were higher (28.2 and 28.0℃) than solid leaf temperature (27.9℃) of sampled trees by ANOVA and Tukey test. There was no significant difference in the leaf temperature between leaf upper surface and lower positions by t-test. When air temperature and relative humidity were steady, the sucked leaf temperatures were higher than solid leaf temperature from the measurements of infrared thermal imaging during 24-hr. Correlations between the solid leaf, sucked leaf, and air temperatures could be represented by positive linear regression formulas. Also, the leaf temperature was significantly influenced by air temperature and relative humidity. These results can provide practical application for tree or seedling health evaluation and management by infrared thermal imaging.