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Çѱ¹ÀܵðÇÐȸ / v.24, no.2, 2010³â, pp.106-116
ÀÓÇØ °£Ã´Áö¿¡¼­ ¸ð·¡»óÅä Ãþ¿¡ ¸ð¼¼°ü¼ö Â÷´Ü ÃþÀÇ µµÀÔÀÌ ¿°·ù ÁýÀû°ú ÄËÅÍ Å°ºí·ç±×·¡½º »ýÀ°¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effects of Interruption Layer for Capillary Rise on Salt Accumulation and Kentucky Bluegrass Poa pratensis Growth in Sand Growing Media over the Reclaimed Saline Soil )
¶óÇÏÀ¯;¾ç±Ù¸ð;ÃÖÁؼö; ¼¼º§¶ó½º ´ëÇб³ ³ó¾÷±â¼úÇаú;´Ü±¹´ëÇб³ »ý¸íÀÚ¿ø°úÇдëÇÐ ³ìÁöÁ¶°æÇаú;´Ü±¹´ëÇб³ »ý¸íÀÚ¿ø°úÇдëÇÐ ³ìÁöÁ¶°æÇаú;
 
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º» ¿¬±¸´Â ÀÓÇØ °£Ã´Áö¿Í ¿°ºÐÀÇ ³óµµ°¡ ³ôÀº °ü¼öÁ¶°Ç¿¡¼­ ¸ð¼¼°ü¼öÀÇ Â÷´ÜÃþÀÌ ¿°·ùÁýÀû°ú ÄËÅÍŰºí·ç±×·¡½ºÀÇ »ýÀ°¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº¸°íÀÚ ¼öÇàµÇ¾ú´Ù. »ýÀ°Áö¹ÝÀ¸·Î´Â Ç¥Åä 30 cm, Â÷´ÜÃþ 20 cm°¡ 10 cm µÎ²²ÀÇ °£Ã´Áö Åä¾çÀ§¿¡ Á¶¼ºµÇ¾ú´Ù. Ç¥Åä·Î´Â žȱº ºÎ³² È£¿¡¼­ Áؼ³µÈ ¸ð·¡°¡ »ç¿ëµÇ¾úÀ¸¸ç À¯±â¹°Àº ºÎÇǺñ 5%·Î È¥ÇյǾú´Ù. 30 cmÁ÷°æÀÇ PVC ÁÖ¸§°üÀ» Àý´ÜÇÏ¿© Áö¹Ý±¸Á¶ ¿ë±â°¡ Á¦À۵Ǿú°í ¹Ù´ÚÀº PVC¸Á»ç¸¦ ÀÌ¿ëÇÏ¿© Åä¾çÀÇ À̵¿À» Â÷´ÜÇÏ¿´´Ù. ¿ë±â´Â 5 cm±íÀÌÀÇ Àú¼öÁ¶¿¡ ¼³Ä¡µÇ¾úÀ¸¸ç Àú¼öÁ¶¿¡´Â $3-5;dsm^{-1}$ ¿°µµÀÇ Èñ¼® ¹Ù´å¹°ÀÌ Ã¤¿öÁ³´Ù. ÄËÅÍŰºí·ç±×·¡½º´Â ¶ÂÀåÀ» »ç¿ëÇÏ¿© Á¶¼ºµÇ¾úÀ¸¸ç $2;Sm^{-1}$·Î Èñ¼®µÈ ¹Ù´å¹°ÀÌ °ü¼ö¿øÀ¸·Î »ç¿ë µÇ¾ú°í ÀÏÆò±Õ 5.7mmÀÇ °ü¼ö°¡ 3ÀÏ °£°ÝÀ¸·Î ¼öÇàµÇ¾ú´Ù. Â÷´ÜÃþÀ» »ý·«ÇÑ Áö¹ÝÀº º½Ã¶¿¡ ¿°ºÐÀÇ ÁýÀûÀÌ Ãִ븦 º¸¿© Åä¾çÀü±âÀüµµµµ°¡ $5.4;dSm^{-1}$¿¡ ´ÞÇÏ¿´À¸¸ç SARÀº 34.0À» º¸¿´°í Â÷´ÜÃþ¼³Ä¡±¸ÀÇ Åä¾çÀü±âÀüµµµµ ÀÎ $4.6;dSm^{-1}$°ú SAR 8.24¿¡ ºñÇØ ÇöÀúÇÏ°Ô ³ôÀº ¿°ÀÇ ÁýÀûÀ» º¸¿´´Ù. Â÷´ÜÃþÀÇ ¼ÒÀ纰 Â÷À̸¦ º¼ ¶§ ÄáÀÚ°¥°ú Á¶»çÀÇ »ç¿ë ½Ã Åä¾çÁß Na³óµµ°¡ °¡°¢ 16%¿Í 25% °¨¼ÒÇÏ¿´°í Åä¾çÀüµµµµ´Â 7%¿Í 13%°¨¼ÒÇÏ¿´´Ù. Â÷´ÜÃþ 󸮱¸ÀÇ ÄËÅÍŰºÎ·ç±×·¡½º ǰÁúÀº Æò±Õ °¡½ÃÀû Æò°¡ 8.3À» º¸¿© Â÷´ÜÃþÀ» »ý·«ÇÑ Ã³¸®±¸ÀÇ Æò±Õ °¡½ÃÀû Æò°¡ 7.9 º¸´Ù ³ô¾Ò´Ù. ÄáÀÚ°¥°ú Á¶»ç Â÷´ÜÃþ ¼ÒÀç´Â Â÷´ÜÃþÀ» »ý·«ÇÑ °æ¿ì¿¡ ºñÇØ ÄËÅÍŰºÎ·ç±×·¡½ºÀÇ °¡½ÃÀû ǰÁúÀ» °¢°¢ 4.1%, 4.0% Áõ°¡ ½ÃÄ×À¸¸ç, »Ñ¸®ÀÇ ±æÀ̸¦ 50%¿Í 38%, »Ñ¸®ÀÇ °ÇÁßÀ» 35%¿Í 17% Áõ°¡ ½ÃÄ×´Ù. »óÅäÃþÀÇ Na ÇÔ·®µµ ÄáÀÚ°¥°ú Á¶»ç Â÷´ÜÃþ¿¡ ÀÇÇØ °¢°¢ 16%¿Í 25% °¨¼ÒÇÏ¿´À¸¸ç Åä¾ç Àü±âÀüµµµµµµ 7%¿Í 13% °¨¼ÒÇÏ¿´´Ù.
This research was conducted to determine the effect of interruption layer for capillary rise on the sand based growing media when growing Kentucky bluegrass (Poa pratensis L.) on soil reclamation and saline water irrigation. Growing media profile consists of three layers as top soil of 30 cm, 20 cm of the interruption layer for capillary rise and 10 cm of reclaimed paddy soil. Growing media profile was packed in 30 cm diameter column pots. The top soil was a mixture of sand dredged up from Lake Bhunam Tae Ahn, Korea and peat at the ratio of 95:5 by volume. Bottom part of column was covered with plastic net and the pots were soaked into 5 cm depth saline water reservoir with salinity $3-5;dS;m^{-1}$. Kentucky bluegrass was established by sod and irrigated using $2;dS;m^{-1}$ saline water ($5.7;mm;day^{-1}$) in 3 days interval. The results showed that the largest accumulation of salt in the spring with electrical conductivity in saturated extract (ECe) of $5.4;dS;m^{-1}$ and sodium absorption ratio (SAR) 34.0 in growing media without the interruption layer for capillary rise and ECe of $4.6;dS;m^{-1}$ and SAR 8.24 at growing media using gravel as the interruption layer for capillary rise material. The interruption layer for capillary rise of gravel and coarse sand reduced the accumulation of Na by 16% and 25%, ECe by 7% and 13% in the growing media. Visual quality of Kentucky bluegrass was higher in growing media with the interruption layer for capillary rise of gravel than no interruption layer by 8.3 compared to 7.9 in rates. The interruption layer for capillary rise of gravel and coarse sand enhanced the visual quality by 4.1 and 4.0%, root length by 50 and 38%, and root dry weight by 35 and 17% of Kentucky bluegrass, and reduced the accumulation of Na by 16% and 25%, ECe by 7% and 13% in the growing media.
 
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°£Ã´Áö;¿°¼ö°ü¼ö;Â÷´ÜÃþ ÄËÅÍŰºí·ç±×·¡½º;Interruption layer;Kentucky bluegrass;Reclaimed soil;Saline irrigation;
 
Çѱ¹ÀܵðÇÐȸÁö / v.24, no.2, 2010³â, pp.106-116
Çѱ¹ÀܵðÇÐȸ
ISSN : 1229-3253
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201015537948914)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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