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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.10, 2011³â, pp.797-807
½Ä»ý»çÁÖ ¿ª¿¡¼­ ÁöÇϼöÀ§¿Í Åä¾ç¼öºÐÀÇ ÇöÀå Á¶»ç¡¤ºÐ¼®
( A Field Survey and Analysis of Ground Water Level and Soil Moisture in A Riparian Vegetation Zone )
¿ìÈ¿¼·;Á¤»óÁØ;Á¶ÇüÁø; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿øÈ¯°æ¿¬±¸º»ºÎ ÇÏÃµÇØ¾ÈÇ׸¸¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏÃµÇØ¾ÈÇ׸¸¿¬±¸½Ç;ÀÎÇÏ´ëÇб³ ´ëÇпø »ý¸í°úÇаú;
 
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±¹³» ÇÏõ¿¡¼­ »çÁÖ »ó ½Ä»ý È°Âø Çö»óÀÌ ±Þ¼ÓÇÏ°Ô ÁøÇàµÇ°í ÀÖ´Ù. 1960³â´ë »ê¾÷È­¿Í µµ½ÃÈ­ ÀÌÀü ¿ì¸®³ª¶ó ÇÏõÀº ¸ð·¡, ÀÚ°¥ÀÌ´ëºÎºÐÀÎÀ̸¥¹Ù 'White River (¹é»çÀåÇÏõ)'À̾úÀ¸³ª, 1970³â´ëÀÌÈÄ´ï°Ç¼³, ÇÏõÁ¤ºñµîÀ¸·ÎÀ¯È²°úÀ¯»çÀÌ ¼ÛƯ¼ºÀÌ ±³¶õµÇ¾î¼öº¯¿¡ ½Ä»ýÀ̹ø¹«ÇÏ°Ô µÇ´ÂÀ̸¥¹Ù 'Green River (½Ä»ýÇÏõ)'°¡ÁøÇàÁßÀÌ´Ù. º» ¿¬±¸´ÂºñÁ¶ÀýÇÏõ»çÁÖ »ó ½Ä»ýÈ°Âø¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ÀÎÀÚ Áß¿¡¼­ ¼öÀ§, ¼ö¿Â, °­¿ì, Åä¾ç¼öºÐ, Åä¾çÀÔ°æ µîÀÇ »óÈ£¿¬°ü¼ºÀ» ÆÄ¾ÇÇϰíÀÚÇÏ¿´´Ù. À̸¦ À§ÇØ ¿ì¸®³ª¶ó ¸ð·¡ÇÏõÀÎ ³»¼ºÃµÀÇ ÇÏ·ù¸¦ ½ÃÇèÇÏõ±¸°£À¸·Î ¼±Á¤Çϰí, 289Àϰ£ ¸ð´ÏÅ͸µ ¹× Á¶»ç ºÐ¼®À» ½Ç½ÃÇÏ¿´´Ù. ¶ÇÇÑ °ú°Å·ÎºÎÅÍ ÇöÀç±îÁö ½Ä»ýÀÇ °æ³âº¯È­¸¦ ÆÄ¾ÇÇϱâ À§ÇØ 1970³âºÎÅÍ 2009³â±îÁöÀÇ Ç×°ø»çÁøÀ» ºÐ¼®ÇÏ¿´´Ù. ½ÃÇèÇÏõ±¸°£ÀÇ ¹üÀ§´Â Ⱦ´Ü±æÀÌ 361m, Á¾´Ü±æÀÌ ¾à 2 kmÀÌ´Ù. Á¶»ç ºÐ¼® °á°ú ³»¼ºÃµ ½ÃÇèÇÏõ±¸°£Àº ÁöÇϼöÀ§°¡ ÇÏõ¼öÀ§º¸´Ù 20~30 cm °¡·® ³ô°Ô ³ªÅ¸³ª´Â À̵æÇÏõÀ̾ú´Ù. ÁöÇϼö¿ÂÀº ÀϺ°, °èÀýº° Â÷À̰¡ $5^{circ}C$ ¹Ì¸¸À̾ú°í, ÇÏõ¼ö¿ÂÀº ½Ä»ýÈ°ÂøÀÌ º»°ÝÀûÀ¸·Î ½ÃÀ۵Ǵ 5¿ùºÎÅÍ $10^{circ}C$ ÀÌÇÏ·Î ¶³¾îÁöÁö ¾Ê¾Ò´Ù. Åä¾ç¼öºÐÀÇ ¿µÇâÀÎÀÚ´Â ÇÏÃþÀº ÁöÇϼöÀ§, »óÃþÀº °­¿ìÀ̸ç, »óÇÏÃþÀº ¸ðµÎ Åä¾çÀÔ°æ¿¡ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. Åä¾ç¼öºÐÃøÁ¤ÁöÁ¡ 6°÷ÀÇ ÁöÇ¥¸é~ÁöÇÏ 1m±îÁöÀÇ Åä¾çÀº $D_{50}$ ÀÔ°æ 0.07~1.37mmÀÇ ¸ð·¡À̸ç, ÀÌ ÀÔ°æ¿¡¼­ °¡´ÉÇÑ ¸ð¼¼°ü ³ôÀÌ´Â ¾à 14~43 cm ¹üÀ§·Î ÃßÁ¤µÈ´Ù. ÇÑÆí ºñ Á¶ÀýÇÏõÀÎ ½ÃÇèÇÏõ±¸°£ÀÇ 40³â°£ °ø°£ºÐ¼® °á°ú, ÀÎÀ§ÀûÀÎ ÇÏõ±³¶õ°ú °¡¹³Àº ½Ä»ýÈ°ÂøÀ» ÃËÁøÇϸç, È«¼ö·Î ÀÎÇØ ½Ä»ý±º¶ôÀÌ ÀÚÁÖ ¼Ò¸êµÉ ¼ö ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù. 1970³âºÎÅÍ ½Ä»ýÀÇ Å©°í ÀÛÀº È°Âø°ú ¼Ò¸êÀÌ ¹Ýº¹µÇ°í ÀÖÁö¸¸ ÇöÀçÀÇ ½Ä»ý¸éÀûÀº °ú°Å¿¡ ºñÇØ ¶Ñ·ÇÇÏ°Ô Áõ°¡µÇ¾î ÀÖ´Ù. ½Ä»ý¸éÀûÀº ½Ã°£¿¡ µû¶ó Á¡ÁøÀûÀ¸·Î Áõ°¡Çϰí ÀÖ´Â °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
Phenomenon of vegetation recruitment on the sand bar is drastically rising in the streams and rivers in Korea. In the 1960s prior to industrialization and urbanization, most of the streams were consisted of sands and gravels, what we call, 'White River'. Owing to dam construction, stream maintenance, etc. carried out since the '70s, the characteristic of flow duration and sediment transport have been disturbed resulting in the abundance of vegetation in the waterfront, that is, 'Green River' is under progress. This study purposed to identify the correlation among water level, water temperature, rainfall, soil moisture and soil texture out of the factors which give an effect on the vegetation recruitment on the sand bar of unregulated stream. To this purpose, this study selected the downstream of Naeseong Stream, one of sand rivers in Korea, as the river section for test and conducted the monitoring and analysis for 289 days. In addition, this study analyzed the aerial photos taken from 1970 to 2009 in order to identify the aged change in vegetation from the past to the present. The range of the tested river section was 361 m in transverse length and about 2 km in longitudinal length. According to the survey analysis, the tested river section in Naeseong Stream was a gaining river showing the higher underground-water level by 20~30 m compared to Stream water level. The difference in the underground water temperature was less than $5^{circ}C$ by day and season and the Stream temperature did not fall to $10^{circ}C$ and less from May when the vegetation germination begins in earnest. The impact factor on soil moisture was the underground water level in the lower layer and the rainfall in the upper layer and it was found that all the upper and lower layer were influenced by soil particle size. The soil from surface to 1 m-underground out of 6 soil moisture-measured points was sand with the $D_{50}$ size of 0.07~1.37 mm and it's assumed that the capillary height possible in the particle size would reach around 14~43 cm. On the other hand, according to the result of space analysis on the tested river section of unregulated stream for 40 years, it was found that the artificial disturbance and drought promoted the vegetation recruitment and the flooding resulted in the frequency extinction of vegetation communities. Even though the small and large scales of recruitment and extinction in vegetation have been repeated since 1970, the present vegetation area increased clearly compared to the past. It's found that the vegetation area is gradually increasing over time.
 
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»çÁÖ;½Ä»ýÈ°Âø;¼öÀ§;À̵æÇÏõ;Åä¾ç¼öºÐ;Åä¾çÀÔ°æ;sand bar;vegetation recruitment;water level;gaining stream;soil moisture;soil texture;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.10, 2011³â, pp.797-807
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201132833919594)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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