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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.43, no.3, 2010³â, pp.356-368
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»ýÅÂÆò°¡¸ðÇü(Integrative Star-Plot Area)À» ÀÌ¿ëÇÑ »ð±³Ãµ ¼ö°è Áø´Ü
( Diagnosis of Sapkyo Stream Watershed Using the Approach of Integrative Star-Plot Area ) |
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| In this study, we applied approach of integrative star-plot area (SPA), chemical water quality and habitat conditions (QHEI) to diagnoze ecological conditions at the eight sampling sites of Sapkyo Stream. These outcomes were compared with biological health based on the Index of Biological Integrity (IBI) using fish assemblage. And then, we evaluated the integrative ecological health condition using the star-plot method. This approach based on the sum of all the star-plot areas over these water and habitat characteristics. It was developed to reflect an integrative assessment of the ecological health in the stream. The biological health, based on the model values of IBI indicating "fair-poor" condition according to the criteria. Physical habitat health, based on the QHEI, averaged 123 indicating a "good-fair" condition. Also, chemical health, based on simply BOD values indicating "poor grade" according to the criteria of the Ministry of Environment Korea (MEK). The SPA indicating that 50% of the all was impaired condition and the most sampling sites were downstream sites influenced by the point and non-point sources. Overall our results suggest that the ecological health impact was a combined effect of eutrophication and habitat degradations in the stream. The approach of SPA can be used as a tool to evaluate the integrative health of stream environment and to identify possible causes of observed effects. |
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| Ű¿öµå |
| Sapkyo watershed;integrated health assessment;fish;ecological health; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.43, no.3, 2010³â, pp.356-368
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201009654402818)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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