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Çѱ¹ÀܵðÇÐȸ / v.23, no.2, 2009³â, pp.229-240
Åä¾çÀÇ ¿Âµµ¿Í ¼öºÐÀÌ Å©¸®ÇÎ º¥Æ®±×·¡½º(Agrostis palustris Huds) »ýÀ°¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effect of Temperature and Water Content of Soil on Creeping Bentgrass(Agrostis palustris Huds) Growth )
ÀÓ½ÂÇö;Á¤Áرâ;±è±âµ¿;ÁÖ¿µ±Ô; ¿¬¼¼´ëÇб³ °úÇбâ¼ú´ëÇÐ »ý¸í°úÇбâ¼úÇкÎ;¿¬¼¼´ëÇб³ °úÇбâ¼ú´ëÇÐ »ý¸í°úÇбâ¼úÇкÎ;¿¬¼¼´ëÇб³ °úÇбâ¼ú´ëÇÐ »ý¸í°úÇбâ¼úÇкÎ;¿¬¼¼´ëÇб³ °úÇбâ¼ú´ëÇÐ »ý¸í°úÇбâ¼úÇкÎ;
 
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¿©¸§Ã¶ °í¿Â ´Ù½ÀÇÑ ¿ì¸®³ª¶ó ±â¿Â¿¡¼­ Åä¾ç ¿Âµµ¿Í ¼öºÐÀº ÀܵðÀÇ »ý¸®ÇÐÀû º¯È­¸¦ ÃÊ·¡Çϸç, ƯÈ÷ ÇÑÁöÇü Àܵð»ýÀ°Àº ¿ì¸®³ª¶ó ¿©¸§Ã¶ ±âÈÄÀÇ Æ¯À̼º¿¡ ¸¹Àº ¿µÇâÀ» ¹Þ´Â´Ù. º» ½ÇÇèÀº Å©¸®ÇÎ º¥Æ®±×·¡½º(Agrostispalustris Huds.)¸¦ ÀÌ¿ëÇÏ¿© °í¿ÂÀÇ Á¶°Ç¿¡¼­ °¢±â ´Ù¸¥ Åä¾ç ¼öºÐÇÔ·® Á¶°Ç¿¡¼­ÀÇ ÇÑÁöÇü Àܵð»ýÀ°À» °üÂûÇÏ¿´´Ù. ±¸Ã¼ÀûÀÎ ½ÇÇè ¹æ¹ýÀ¸·Î´Â ¼öºÐÇÔ·®°ú ¿Âµµ¿¡ µû¸¥ bentgrassÀÇ »ýÀ° ¹× »ý¸®Àû ½ºÆ®·¹½º ¹ÝÀÀÀ» Æò°¡ÇÏ¿´´Ù. ¸ðÀÇ USGA(United State of Golf Association) ±×¸° Á¶°Ç¿¡¼­ÀÇ Åä¾ç ¿Âµµ ¹× ¿­ Ư¼º ½ÇÇè °á°ú ¼öºÐÀÌ °ÅÀÇ ¾ø´Â °ÇÁ¶ »óÅ¿¡¼­ÀÇ Åä¾ç ¿Âµµ´Â $34^{circ}C$·Î ¹ß¿­ ÇßÀ» ¶§ Åä¾ç Ç¥¸é ¿Âµµ°¡ $80^{circ}C$±îÁö ¿Ã¶ó°¡´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¹Ý¸é, °ú¼öºÐ Á¶°Ç¿¡¼­ $34^{circ}C$ ¹ß¿­À» ÇßÀ» ¶§¿¡´Â °ÇÁ¶ Á¶°Ç¿¡ ºñÇØ »ó´ëÀûÀ¸·Î $10^{circ}C$°¡ ³·Àº °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ½ÇÇè Æ÷Àå¿¡¼­ÀÇ ¿Âµµ¿Í ¼öºÐ¿¡ µû¸¥ ¿­ Ư¼º º¯È­´Â °ü¼ö½Ã±â¿Í ¹«°üÇÏ°Ô Ã³¸®±¸ ¸ðµÎ¿¡¼­ °ü¼ö ÈÄ¿¡ ¿­Àüµµµµ(thermal conductivity), ¿­ È®»ê¼º(thermal diffusivity), ¹× Åä¾ç ¿Âµµ°¡ Áõ°¡ÇÏ¿´´Ù. ÀÌ´Â ¼öºÐÀÌ °ø±â¿¡ ºñÇØ »ó´ëÀûÀ¸·Î ³ôÀº ¿­Àüµµµµ¸¦ °®±â ¶§¹®À¸·Î »ç·áµÈ´Ù. ¶ÇÇÑ, º» ½ÇÇè¿¡¼­ °ü¼ö Ãʱ⿡´Â °ú¼öºÐ Á¶°Ç¿¡ ºñÇØ ¼öºÐ °áÇÌ Á¶°Ç¿¡¼­ Åä¾ç ¿ÂµµÀÇ Áõ°¡¸¦ º¸¿´À¸¸ç, ½Ã°£ÀÌ Áö³²¿¡ µû¶ó °ú¼öºÐ Á¶°Ç¿¡¼­ ´õ ³ôÀº Åä¾ç ¿ÂµµÀÇ Áõ°¡¸¦ È®ÀÎÇÏ¿´´Ù. Áï, Åä¾ç ¿Âµµ´Â °ú¼öºÐ Á¶°Ç¿¡¼­ ¿­Àüµµ¿¡ ÀÇÇØ ³ô¾ÆÁ® ÀܵðÀÇ »ýÀ°¿¡ ¿µÇâÀ» ¹ÌÄ£´Ù. ÀÌ´Â Àܵð Ç¥¸éºÎ ¿Âµµ°¡ ³ôÀº ½Ã°¢´ëÀÇ °úµµÇÑ °ü¼ö´Â ¿©¸§Ã¶ ÀܵðÀÇ »ýÀ°¿¡ ºÎÁ¤Àû ¿µÇâÀ» ¹ÌÄ¡¸ç, ¼Ò³ª±â µî¿¡ ÀÇÇÑ ÀϽà ħ¼ö ½Ã Áö¹Ý¹è¼öÀÇ ºÒ·®Àº Àܵð »ýÀ°¿¡ Ä¡¸íÀûÀÎ ¿äÀÎÀÌ µÉ ¼ö ÀÖ´Ù´Â °ÍÀ» ÀǹÌÇÑ´Ù.
The high temperature and water content in soil profile probably affect the physiological disorder especially on cool-season turfgrasses in warm and humid weather of Korean summer. The purpose of this research was to analyze the effect of soil temperature and water content on the growth and stress response of creeping bentgrass(Agrostis palustris Huds.) under a humid and warm temperature. USGA(United State of Golf Association) green profile in laboratory test, Daily temperature changes were tested under a dried sand, 70% water content of field capacity, and saturated condition at $34^{circ}C$ of the USGA green in lab. In this test, the dried sand reached to $80^{circ}C$, however, the surface temperature decrease of $10^{circ}C$ on the saturated condition. In the thermal properties test in field, thermal conductivity, thermal diffusivity, and soil temperature were increased followed by irrigation practise. In the water-deficient condition, the highest soil temperature was reached temporally right after irrigation, however, the excessive soil water content higher than field water holding capacity showed the highest soil temperature after a while. This result indicated that a heat damage to root system was caused from the thermal conductivity of a high surface soil temperature. The excessive irrigation when a high turf surface temperature should occur a negative result on tufgrass growth, moreover, it would be fatal to root growth of creeping bentgrass, especially when associated with a poor draining system on USGA sand green. Overall, this study shows that high soil temperature with water-excessive condition negatively affects on cool-season grass during the summer season, suggesting that excessive irrigation, over 70% field capacity of soil condition, does not help to reduce soil temperature for summer season in Korea. In the study that cool-season grass were treated with different water content of soil, The soil had higher temperature and more water holding capacity when treatment rate of soil conditioner was increased. The best growth at the normal water condition and the worst state of growth at thee water-excessive condition were observed.
 
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¿­ Ư¼º;°ü¼ö;Åä¾ç ¿Âµµ;Åä¾ç ¼öºÐ;º¥Æ®±×·¡½º;thermal property;soil temperature;soil moisture;bentgrass;irrigation;
 
Çѱ¹ÀܵðÇÐȸÁö / v.23, no.2, 2009³â, pp.229-240
Çѱ¹ÀܵðÇÐȸ
ISSN : 1229-3253
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200920036086748)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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