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Çѱ¹»ýÅÂÇÐȸ / v.28, no.3, 2005³â, pp.141-147
Á¶°£´ë ³»¿¡¼­ Ä¥¸éÃÊ(Suaeda japonica) Á¾ÀÚÀÇ ºÐÆ÷ ¹× ¸ÅÅä Æ¯¼º
( Seed Distribution and Burial Properties of Suaeda japonica in Tidal-flat )
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Á¶°£´ë ³» Ä¥¸éÃÊ Á¾ÀÚÀÇ ºÐÆ÷ ¹× ¸ÅÅä Æ¯¼ºÀ» ÆÄ¾ÇÇϱâ À§ÇØ 1999³â 3¿ùºÎÅÍ 2000³â 10¿ù±îÁö °æ±âµµ ½ÃÈï½Ã ¿ù°÷µ¿¿¡¼­ ¸ÅÅä Á¾ÀÚÀÇ ¼öÁ÷ ¹× ¼öÆò ºÐÆ÷¿Í °Ô¿¡ ÀÇÇÑ ÀúÅäÀÇ ±¼Âø·®À» ÃßÁ¤ÇÏ¿´´Ù. Ä¥¸éÁ¶ Á¾ÀÚ´Â 94%°¡ ¸ðüÀÇ ¼ö°ü ¾Æ·¡ ºÐÆ÷ÇÏ¿´À¸¸ç, ³ª¸ÓÁö 6%¸¸ÀÌ ¼ö°ü¹Û¿¡ À§Ä¡ÇÏ¿´´Ù. ÀúÁú ³» À¯±â¹° ÇÔ·®Àº Ä¥¸éÃʰ¡ ÀÖ´Â Áö¿ª¿¡¼­´Â 6 cm ±íÀ̱îÁö Æò±Õ 17%·Î ³ô¾ÒÁö¸¸ À̰ÍÀÌ ¾ø´Â Áö¿ª¿¡¼­´Â 8%·Î ³·¾Ò´Ù. ÇÑÆí, ½Ä»ýÁö¿¡¼­ À¯±â¹° ÇÔ·®Àº Ç¥Åä(1 cm ±íÀÌ)°¡ 19%À̾úÀ¸¸ç ÇÏÃþÀ¸·Î °¥¼ö·Ï °¨¼ÒÇÏ¿© 6 cm ±íÀÌ¿¡¼­´Â 14%À̾ú´Ù. Ä¥¸éÃÊ Á¾Àڴ ǥ¸éÀ¸·ÎºÎÅÍ 2 mm À̳»¿¡ 45%°¡ ¸ÅÅäµÇ¾î ÀÖ¾ú°í ÇÏÃþÀ¸·Î °¥¼ö¸¤ ±Þ°ÝÈ÷ °¨¼ÒÇÏ¿© 12 mm±íÀÌ ÀÌÈÄ¿¡´Â ¾ø¾ú´Ù. °©°¢·ùÀÇ ¼­½Ä¹Ðµµ´Â ½Ä»ýÁö´Â ºñ½Ä»ýÁöº¸´Ù ³ô¾ÒÀ¸¸ç ƯÈ÷, ¼¼½º¶û°Ô·ùÀÇ °ÑÀº ¾à 8 ¹èÀ̾ú´Ù. ½Ä»ýÁö¿¡¼­ °©°¢·ù°¡ ÇÏÃþÀ¸·ÎºÎÅÍ ÆÄ³½ ÀúÁúÀÇ ¾çÀ» ÃßÁ¤ÇÑ °á°ú 2,409 $cm^3{cdot}m^{-2}$À̾úÀ¸¸ç ÀÌ´Â ÀúÅäÀÇ ³ôÀ̸¦2.4 mm »ó½Â½Ãų ¼ö ÀÖ´Â ¾çÀ̾ú´Ù. µû¶ó¼­ Ä¥¸éÃÊ Á¾ÀÚ´Â ÀÚ½ÅÀÇ °í»çü¿Í °©°¢·ù°¡ ±¸¸ÛÀ» Çü¼ºÇÏ´Â µ¿¾È ÆÄ³½ ÀúÅä¿¡ ÀÇÇØ ¸ÅÅäµÉ ¼ö ÀÖ´Â °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. ¶ÇÇÑ ½Ä»ýÁö´Â ºñ½Ä»ýÁöº¸´Ù ¸¹Àº ¾çÀÇ °©°¢·ù°¡ ¼­½ÄÇÏ´Â °á°ú¿¡ ÀÇÇÏ¸é °©°¢·ù´Â Ä¥¸éÃʷκÎÅÍ ÀϺΠÀ̵æÀ» ¾ò´Â °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù.
To clarify seed distribution in sediment and its burial properties of Suaeda japonica, the vertical and horizontal distribution of seeds, organic content of sediment, and sediment content delivered by crabs were studied in mud tidal-flat of Walgot-dong, Siheung, Gyeonggi Province, from March 1999 to October 2000. The 94% and 6% of S. japonica seeds were buried under and outside the maternal plant crown, respectively. Organic matter contents of sediment were higher at the area (17%) covered than at the one (8%) uncovered by S. japonica. In the area covered by S. suaeda, organic matter profiles of sediment showed vertical variation from 19% in surface (1 cm depth) to 14% in 6 cm depth. S. japonica seeds buried in sediment decreased from 45% in 2 mm depth to 0% in 12 mm depth. The density of crabs was higher in the vegetated area than in the non-vegetated one. Especially, the density of Cleistostoma was about 8 times higher in the former than in the latter In the vegetated area, the amount of sediment delivered by crabs was estimated to be 2,409 $cm^3{cdot}m^{-2}$, and this could ascend the height of sediment to 2.4 mm. Consequently, it might be interpreted that plant debris (organic matters) of maternal plants and sediment delivered by crabs made the S. japonica seeds bury well. By relationship between crab distribution and vegetation, it was thought that crabs got a benefit from S. japonica.
 
Ű¿öµå
Burial;Crab;Sediment;Seed;Suaeda japonica;Tidal-flat;Vegetated area;
 
The Korean Journal of Ecology / v.28, no.3, 2005³â, pp.141-147
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200509905766405)
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