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Çѱ¹¼öÀÚ¿øÇÐȸ / v.43, no.10, 2010³â, pp.883-891
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( Study on Characteristics for Local Deposit of Sediment by Surveying River Bed's Layer History in High Berm of River Channel ) |
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More recently, there have been significant changes in the forms of channels due to runoff characteristics driven by climate changes and other alterations in basin/channel environments. Particularly, increasing local deposition in major channels is being observed nationwide. Of such phenomena, it is noteworthy that flood-plains show unidirectional growth and lowering of channels within compound channels in the form of a high-flow plain. These changes are supposed to affect management of the river ecology as well as flood control. In this study, the research on channels in Korea confirmed that the phenomenon of local deposition in those channels is actually taking place, rendering a problem to be urgently addressed. Previous studies on bed changes have been focused on low channels based on bed materials distributed over the channels. However, this research has proved that surface-layer deposition of a high-flow plain is closely related with changes in the conditions of ground surfaces and, ultimately, affects the bed of the entire channel as well. According to the intensive research on the condition of the high-flow plain of the mouth of the Han River, the silt deposited in the high-flow plain was the main cause of settlement/growth of vegetation. And this leads to landforming along with woods-forming, disturbing flood control as well as the normal river ecology. |
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Çϵµ³» ±¹ÁöÅðÀû;°í¼öºÎÁö;Çϻ󺯵¿;À¯»ç;¹Ì¼¼¸³»ç;ÇÏ»óÇ¥Ãþ Åä»ç;local deposition in a channel;high-flow plain;bed change;sediment;silt;soil on bed surface; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.43, no.10, 2010³â, pp.883-891
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201032654094302)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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