|
|
|
한국하천호수학회 / v.32, no.2, 1999년, pp.141-141 
|
동해안 석호의 부영양화 평가
( Evaluation of Eutrophication of Lagoons in the Eastern Coast of Korea ) |
| 허우명;김범철;전만식; 삼척대학교 환경공학과;강원대학교 환경학과;강원대학교 환경학과;
|
|
|
 |
|
| |
| 초 록 |
| 동해안의 경포호를 비롯한 6개 석호를 조사한 결과 모든 호수가 부영양화가 매우 심한 것으로 나타났다. 투명도는 1.0m 내외의 낮은 값을 보였으며 청초호를 제외한 모든 호수에서 남조류인 Oscillatoria sp.가 우점종이었다. 염분의 경우 청초호와 화진포호의 북호는 각각 $18{sim}30{ extperthousand}$와 $10{sim}25{ extperthousand}$이었으며, 다른 호수는 $10{ extperthousand}$ 내외로 호수별로 큰 차이를 보였다. 또한 모든 호수의 Chl. a, TN및 TP도 각각 $11.4{sim}97.3;mg/m^3,;0.77{sim}2.36;mgN/L$ 및 $0.056{sim}0.292mgP/m^3$의 범위로 보여 차이가 큰 것으로 나타났다. 표층의 TN/TP무게비는 $6{sim}14$ 정도로 매호가 가장 적었으며, TSI는 $56{sim}79$의 범위로 영랑호가 가장 컸다. |
|
| Trophic state parameters were surveyed in seven lagoons located along the eastern coast of Korea. Salinity, DO, SS, TP, TN, chlorophyll a concentration, Secchi disc transparency (SD) and dominant phytoplankton were measured from May to November 1998. Trophic state indices (TSI) was calculated from TP, Chl. a, and SD data of growing season average. The amount of phosphorus and nitrogen generation within the water shed of each lake was estimated. Strong vertical chemocline was observed in some lakes, which resulted in large difference of DO and salinity between surface and deep water. Salinity of Lake Chungcho and North aera of Lake Hwajinpo were $18{sim}30{ extperthousand}$ and $10{sim}25{ extperthousand}$, respectively, whereas other lakes were below $10{ extperthousand}$. SD, Chl. a, TN and TP of the all lakes were in the range of $0.29{sim}1.02;m,;11.4{sim}97.3;mg/m^3,;0.77{sim}2.36;mgN/L,;0.056{sim}0.292;mgP/L$, respectively. Epilimnetic TN/TP weight ratios were $6{sim}14$. The lowest TN/TP ratio of all lakes was observed in Lake Maeho. TSI was in the range of eutrophy to hypereutrophy, from 50 to 79. The highest TSI of all the lakes was observed in Lake Youngrang. The dominant phytoplankton species were Oscillatoria sp. except for Lake Chungcho, where Microspora sp. was dominant. It seems that the unique phytoplankton community in Lake Chongcho was caused by the difference of salinity and seawater intrusion. |
| |
| 키워드 |
| Lagoons in eastern coast;Eutrophication;Trophic state;TN/TP ratio; |
| |
|
|
|
|
한국하천호수학회지 / v.32, no.2, 1999년, pp.141-141
한국하천호수학회
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199910102461556)
언어 : 한국어 |
|
| 논문 제공 : KISTI 한국과학기술정보연구원 |
|
|
|
|
|
|
