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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.33, no.3, 2000³â, pp.187-196
¿µ¾ç»óÅÂÁö¼ö (trophic state index)¸¦ ÀÌ¿ëÇÑ ¼öü ³» ½Ä¹°Çöûũſ Á¦ÇÑ¿äÀÎ ¹× sestonÁ¶¼ºÀÇ À¯Ãß
( Using Trophic State Index (TSI) Values to Draw Inferences Regarding Phytoplankton Limiting Factors and Seston Composition from Routine Water Quality Monitoring Data )
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È£¼ö ³» sestonÁ¶¼º ¹× ½Ä¹°Çöûũſ ¼ºÀåÀ» Á¦ÇÑÇÏ´Â ¿äÀεéÀ» Æò°¡Çϱâ À§Çؼ­´Â ÀϹÝÀûÀ¸·Î ½Ã·á°¡ ´ã±ä ¿ë±â ³»¿¡ ¿µ¾ç¹°ÁúÀ» ÅõÀÔÇÏ´Â »ý¹°°ËÁ¤ (bioassay) ¹æ¹ýÀ̳ª, ¼·½Ä (grazing) ½ÇÇè, sestonÀÇ sizeºÐ¼® µî°ú °°Àº Á÷Á¢ÀûÀÌ°í ½Ã°£Àû ³ë·ÂÀÌ ÇÊ¿äÇÑ ¹æ¹ýÀ» ÀÌ¿ëÇÑ´Ù. ±×·¯³ª ÀÌ ³í¹®¿¡¼­´Â µ¿ÀÏÇÑ ¸ñÀûÀ» À§ÇÏ¿©, ÃÑÀÎ (TP), ¿±·Ï¼Ò (CHL), Åõ¸íµµ (Secchi depth, SD) ÀÚ·á¿¡ ÀÇÇØ °è»êÇÑ CarlsonÀÇ ¿µ¾ç»óÅÂÁö¼ö (TSI)µéÀÇ »óÈ£ÆíÂ÷(deviation)¸¦ ÀÌ¿ëÇÏ´Â º¸´Ù °£ÆíÇÑ ¹æ¹ýÀ» ¼Ò°³ÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ TSI ÆíÂ÷ºÐ¼®À» À§ÇÏ¿© ¾Æ¿­´ëÁö¿ªÀÇ ´ëÇüÈ£¼ö (Lake Okeechobee, ¹Ì±¹ Ç÷θ®´Ù)ÀÇ ¼öÁúÀÚ·á¿Í ´Ù¸¥ ¸¹Àº È£¼öµé·ÎºÎÅÍ ¼öÁýµÈ ÀڷḦ ÀÌ¿ëÇÏ¿´´Ù. ÀÏ´Ü ¿¬±¸ÀÚ°¡ ÀÏ»óÀûÀÎ ¼öÁúÀڷḦ ¼öÁýÇÏ¿© ÃÑÀÎ, Chl-a, Åõ¸íµµ °ªÀ» ±âÃÊ·Î TSI°ªÀ» ¾ò¾ú´Ù¸é, À̷κÎÅÍ ¿©·¯ °¡Áö ÇØ¼®ÀÌ µµÃâµÉ ¼ö ÀÖ´Ù ÇÑÆí, ÃÑÁú¼ÒÀÇ ÀÚ·áµµ ÃÑÀΰú ¸¶Âù°¡Áö·Î ¿µ¾ç¹°Áú¿¡ ´ëÇÑ ÀÚ·á·Î Áß¿äÇÏ°Ô ÀÌ¿ëµÉ ¼ö ÀÖ´Ù. TSI (CHL)°ªÀÌ TSI (TP)°ªº¸´Ù ÈξÀ ÀÛ´Ù¸é, ÀÎ (P)ÀÌ ¾Æ´Ñ ´Ù¸¥ ¿äÀÎÀÌ Á¶·ùÀÇ ¼ºÀåÀ» Á¦ÇÑÇÑ´Ù°í À¯ÃßÇÒ ¼ö ÀÖ´Ù. ¸¸¾à TSI (CHL)°ªÀÌ TSI (SD) °ªº¸´Ù ÈξÀ ÀÛ´Ù¸é È£¼ö ³» sestonÁß ¾ÆÁÖ ÀÛÀº ¹«»ý¹°Àû ÀÔÀÚµéÀÇ ±¸¼ººñ°¡ ³ô´Ù°í ÃßÁ¤ÇÒ ¼ö ÀÖÀ¸¸ç,ÀÌ °æ¿ì ºûÀÌ Á¦ÇÑ ¿ä¼Ò°¡ µÉ °ÍÀÌ´Ù. ¹Ý´ë·Î, TSI (CHL) °ªÀÌ TSI (TP) °ªº¸´Ù´Â ÀÛÁö¸¸ TSI (SD) °ªº¸´Ù Å©´Ù¸é, ¼öÁßÀÇ ºûÀ» »ê¶õ½ÃŰ´Â ÀÔÀÚµéÀÌ Å©±â°¡ Å©´Ù°í (¿¹¸¦ µé¸é, Å« »ç»ó¼º ¶Ç´Â ±ºÃ¼¼º Á¶·ù) ÃßÁ¤ÇÒ ¼ö ÀÖ°í, ÀÌ °æ¿ì Á¶·ùÀÇ ¼ºÀåÀº µ¿¹°ÇöûũſÀÇ ¼·½Ä¿¡ ÀÇÇØ Á¦ÇÑÀ» ¹ÞÀ» °¡´É¼ºÀÌ Å©´Ù. ÀÌ·¯ÇÑ ºÐ¼®ÀÇ °á°ú´Â ½Å·Ú¼º°ú Àϰü¼ºÀÌ ¸Å¿ì ³ôÀ¸¸ç, ÀϹÝÀûÀ¸·Î »ó±âÇÑ ´Ù¸¥ Á÷Á¢ÀûÀÎ ¹æ¹ýµé¿¡ ÀÇÇØ ¾ò¾îÁø °á°úµé°úµµ Àß ÀÏÄ¡ÇÑ´Ù. TSIÀÇ ÆíÂ÷¸¦ ÀÌ¿ëÇÑ ¹æ¹ýÀ¸·ÎºÎÅÍ µµÃâµÈ °á°ú¸¦ À§ÀÇ Á÷Á¢ÀûÀÎ ¹æ¹ýÀ» ÅëÇØ ÁÖ±âÀûÀ¸·Î °ËÁõÇÒ ÇÊ¿ä´Â ÀÖÁö¸¸, È£¼ö°ü¸®¸¦ À§ÇØ ¼öÁú°ú »ýÅÂÇÐÀû ¹ÝÀÀ ¿äÀεéÀ» ¸ð´ÏÅ͸µÇϰí, ³ª¾Æ°¡ Àå±âÀûÀ¸·Î È£¼öÀÇ º¯È­¸¦ ÀÌÇØÇϴµ¥ º¸´Ù È¿À²ÀûÀÌ°í °æÁ¦ÀûÀÎ ¹æ¹ýÀ» Á¦°øÇÒ ¼ö ÀÖ¾î À̿밡ġ°¡ ¸Å¿ì ³ô´Ù°í »ç·áµÈ´Ù.
This paper describes a simple method that uses differences among Carlson's (1977) trophic state index (TSI) values based on total phosphorus (TP), chlorophyll a (CHL) and Secchi depth (SD) to draw inferences regarding the factors that are limiting to phytoplankton growth and the composition of lake seston. Examples are provided regarding seasonal and spatial patterns in a large subtropical lake (Lake Okeechobee, Florida, USA) and inter- and intra-lake variations from a multilake data set developed from published studies. Once an investigator has collected routine water quality data and established TSI values based on TP, CHL, and SD, a number of inferences can be made. Additional information can be provided where it also is possible to calculate a TSI based on total nitrogen (TN). Where TSI (CHL)<>TSI (SD), light attenuating particles are large (large filaments or colonies of algae), and the phytoplankton may be limited by zooplankton grazing. Other limiting conditions are inferred by different relationships between the TSI values. Results of this study indicate that the analysis is quite robust, and that it generally gives good agreement with conclusions based on more direct methods (e.g., nutrientaddition bioassays, zooplankton size data, zooplankton removal experiments). The TSI approach, when validated periodically with these more costly and time-intensive methods, provides an effective, low cost method for tracking long-term changes in pelagic structure and function with potential value in monitoring lake ecology and responses to management.
 
Ű¿öµå
Phytoplankton;Limiting factors;Trophic state index;Seston;Particle size;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.33, no.3, 2000³â, pp.187-196
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200018317175937)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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