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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.6, no.3, 1997³â, pp.205-215
¿Â½ÇÀç¹è Å丶ÅäÀÇ Áõ»ê¸ðµ¨ °³¹ß ¹× °ËÁõ
( Transpiration Modelling and Verification in Greenhouse Tomato )
À̺¯¿ì; ¼­¿ï´ëÇб³ ³ó¾÷»ý¸í°úÇдëÇÐ ³óÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ¿Â½Ç Àç¹è Å丶Åä ±º¶ôÀÇ ¿­¼öÁö¿¡ ±Ù°ÅÇÑ Áõ»ê¸ðµ¨À» ±¸¼ºÇÏ°í ½ÇÇèÀ» ÅëÇÏ¿© ¸ðÅÚ¿¡ ÇÊ¿äÇÑ °è¼öÀÇ ÃßÁ¤°ú ¸ðÁúÀÇ °ËÁõÀ» ¼öÇàÇÏ¿´´Ù. ¿Â½ÇÀÇ Àϻ緫°ú ¿±-´ë±â¼öÁõ±â¾ÐÂ÷(LVPD)¸¦ ¸Å°³º¯¼ö·Î ÇÏ´Â ±â°øÈ®»êÀúÇ× ÃßÁ¤½ÄÀ» ±¸¼ºÇÏ¿© ±â°øÀÛ»êÀúÇ× ½ÇÃø ÀڷḦ ÀÌ¿ëÇÏ¿© ÃßÁ¤½ÄÀÇ °è¼ö¸¦ ÃßÁ¤ÇÏ¿´´Ù. ÀÌ ÃßÁ¤½ÄÀ¸·Î ±â°øÈ®»êÀúÇ× º¯ÀÌÀÇ 80£¥ ÀÌ»óÀ» ¼³¸íÇÒ ¼ö ÀÖ¾úÀ¸¸ç ÃßÁ¤½Ä¿¡ ÀÌ¿ëÇÏÁö ¾Ê¾Ò´ø µ¶¸³ ÀڷḦ ÀÌ¿ëÇÏ¿© °ËÁ¤ÇÑ °á°ú ÃßÁ¤Á¤µµ°¡ ³ô¾Æ Áõ»ê¿¹Ãø ¸ðµ¨ÀÇ ±¸¼º½ÄÀ¸·Î ÀÌ¿ëµÉ ¼ö ÀÖ´Â °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. ¹ÝÅõ°ú¼º ¸ÅÁúÀÇ º¹»ç Èí¼öÀÌ·ÐÀ» Àû¿ëÇÑ StanghelliniÀÇ ½ÄÀ» ´Ù¼Ò º¯ÇüÇÏ¿© ¸ðµ¨ÀÇ ±º¶ô ¼øº¹»ç ÃßÁ¤½ÄÀ¸·Î »ç¿ëÇÏ¿´À¸¸ç ÀÌ ÃßÁ¤½Ä¿¡ ÀÇÇÏ¿© °è»êµÈ ¼øº¹»ç·®Àº ½ÇÃøÄ¡¿Í Àß ÀÏÄ¡ÇÏ¿´´Ù. °è¼ö ÃßÁ¤¿¡ »ç¿ëÇÏÁö ¾Ê¾Ò´ø µ¶¸³ ÀڷḦ ÀÌ¿ëÇÏ¿© ¼øº¹»ç ¹× ±â°øÈ®»êÀúÇ× ÃßÁ¤½ÄÀ¸·Î ±¸¼ºµÈ Áõ»ê¿¹Ãø ¸ðµ¨ÀÇ ±º¶ô¿Âµµ ¹× Áõ»ê¿¹Ãø Á¤µµ¸¦ °ËÁõÇÏ¿´´Ù. ¸ðµ¨¿¡ ÀÇÇÏ¿© °è»êµÈ ±º¶ô ¿Âµµ, ¼ø°£ Áõ»ê¼Óµµ ¹× ÀÏ ÃÑ Áõ»ê·®Àº ½ÇÃøÄ¡¿Í Àß ÀÏÄ¡ÇÏ¿© º» ¿¬±¸¿¡¼­ ÀÛ¼ºµÈ Áõ»ê ¿¹Ãø ¸ðµ¨Àº ¿Â½Ç Àç¹è Å丶ÅäÀÇ È¯°æÁ¦¾î, °ü°³Á¦¾î µî¿¡ ½Ç¿ëÀûÀ¸·Î Ȱ¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù.
An accurate transpiration model for greenhouse tomato crop, which is liable to transpiration depression and yield loss because of low solar radiation and high humidity, could be an efficient tool for the optimum control of greenhouse climate and for the optimization of Irrigation scheduling. The purpose of this study was to develop transpiration model of greenhouse tomato and to carry out the experimental verification. The formulas to calculate the canopy transpiration and temperature simultaneously were derived from the energy balance of canopy. Transpiration and microclimate variables such as net radiation, solar radiation, humidity, canopy and air temperature, etc. were simultaneously measured to estimate parameters of model equations and to verify the suggested model. Leaf boundary layer resistance was calculated as a function of Nusselt number and stomatal diffusive resistance was parameterized by solar radiation and leaf-air vapor pressure deficit. The equation for stomatal diffusive resistance could explain more than 80£¥ of its variation and the calculated stomatal diffusive resistance showed good agreements with the measured values in situations independent of which the constants of the equation were estimated. The canopy net radiation calculated by Stanghellini's model with slight modification agreed well with the measured values. The present transpiration model, into which afore-mentioned component equations were assembled, was found to predict the canopy temperature, instantaneous and daily transpiration with considerable accuracy in greenhouse climates.
 
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Å丶Åä;Áõ»ê;±â°øÈ®»êÀúÇ×;¼øº¹»ç;¿Â½Ç;tomato;transpiration;stomatal diffusive resistance;net radiation;greenhouse;
 
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.6, no.3, 1997³â, pp.205-215
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711922405492)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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