http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Cluster analysis 에 의한 소양호의 (昭陽湖) 수체 (水體) 분석
조규송,안태석,김범철,이동훈 ( Kyu Song Cho,Tae Seok Ahn,Bom Chul Kim,Dong Hun Lee ) 한국하천호수학회 1987 생태와 환경 Vol.20 No.3
Cluster analysis was applied for the distinction of the water body in Soyang lake, whcih is the largest lake in Korea. For this analysis, the sixteen environmental parameters, such as water temperature, nutrient salts, organic materials, etc were used as the input data. The total data matrix was 16 parameters X 47 points (in 14 sites). After Standardization, the Euclidean distances between two points were calculate. By the results, main stream of Soyang lake can be classified with 5 groups in March, 10 groups in February. And two shallow tributaries, showed different grouping pattern from main stream. In March, and November, the vertical mixing was detected, and in August, the water body above 10 m was showed complex grouping pattern, and showed two water bodies in middle layer, and one in bottom layer.
금강산댐 (金剛山) 건설에 따른 북한강 상류 수역의 환경 모니터링에 관한 연구
조규송,김범철,안태석,전상호,이종범 ( Kyu Song Cho,Bomchul Kim,Tae Seok Ahn,Sang Ho Jun,Chong Bum Lee ) 한국하천호수학회 1988 생태와 환경 Vol.21 No.1
Aquatic ecosystem was studied in Lake Paro to monitor the effects of the Keumkangsan Dam construction in North Korea. Water quality, pirmary productivity, and microbes were surveyed bimonthly in 1987. The texture and composition of sediments, and meterological aspects were also investigated. The most remarkable change of water quality was the increase of turbidity. due to the dam construction. Overall chemical and biological aspects were greatly changed because of the high turbidity. The concentration of phosphate increased and subsequently phytoplankton standing crop increased. The effect of phosphate increase was compensated by the decrease of light penetration, and, therefore, areal primary productivity was not so high as expected from the chlorophyll concentration. From the standing crop of microbes, the trophic state of Lake Paro was evaluated as mesotrophy. As for the horizontal variation of microbial activity, the microbial heterotrophy was higher in the upstream regions than in the downstream regions. Sediment types are almost clayey silt and the mean sizes of sediments were homogeneous through the whole lake area. Organic carbon contents of the sediment seemed to be influenced by seasonal variation of primary productivity. Air temperature on Lake Paro was about 2 ℃ lower and the relative humidity was about 10% higher than that of Chuncheon. The evaporation from lake surface estimated from the comparison of air temperature and surface water temperature was highest in autumn.
소양호에서의 Alkaline phosphatase 활성도의 Kinetics
안태석,김범철,조규송 ( Tae Seok Ahn,Bom Chul Kim,Kyu Song Cho ) 한국하천호수학회 1989 생태와 환경 Vol.22 No.3
The kinetics of alkaline phosphatase activity were studied at the surface of a warm monomictic large reservoir, Lake Soyang, every two months from February 1988 to June 1989. Three sampling stations were located at the dam site, near a large netcage-type fishfarm, and a tributary stream inlet region where the dinoflagellate blooming occurs in warm seasons. Vmax of alkaline phosphatase, showing the range of 0.02∼5.95 μM/1/hr, was high during the spring bloom, April and June, and low during the turnover time, October, December, and February. Kt+Sn, showing the range of 0.06 ∼31.0 μM/1, was high during the turnover time, which seems to be caused by the nutrients supply from the hypolimnion. Kt+Sn was much higher during turnover time at the fishfarm station than other stations, which is obviously resulting from the large amount of fecal deposition at the bottom and the diffusion of organic phosphorus upto the surface. It seems that at high density phytoplankton itself can be the substrate for alkaline phosphatase, since the peak time of Kt+Sn coincided with the peak of chlorophyll a concentration in the shallow stream inlet station where dinoflagellates aggregate.
김범철,안태석,조규송 ( Bomchul kim,Tae Seok Ahn,Kyu Song Cho ) 한국하천호수학회 1988 생태와 환경 Vol.21 No.3
Trophic states were surveyed in reservoirs of the Han River. Trophic states were assessed from chlorophyll a concentration, Secchi disc transparency, total phosphorus and primary productivity in recent several years. Trophic state indices (TSI) were calculated from the summer-time average of water quality data TSIs were in the range of mesotrophy to eutrophy, from 40 to 55. The highest TSI of all the reservoirs of the Han River was observed at the inlet of the South Han River in Lake Paldang. TSI varied with year becuase of such event as turbid flood inflow, water bloom, and descending water level. The reservoirs of the North Han River showed higher TSI in 1987 than 1981 and 1982 because of high turbidity in Lake Paro caused by drawdown of water level. The correlation coefficients between the six TSIs were high, but the probabilities of paired T-test were very low, which means significant differences in the absolute dimensions of the TSIs. The correlation between TSI(SD) and TSI(TP) was highest and TSI(Chl) showed lower correlation with TSI(SD) and TSI(TP).
소양호의 (昭陽湖) 미생물 분포에 관한 요인분석에 관하여
안태석,김범철,조규송 ( Tae Seok Ahn,Bom Chul Kim,Kyu Song CHo ) 한국하천호수학회 1986 생태와 환경 Vol.19 No.3·4
The factor analysis was applied to scrutinize the effects of environmental factors on bacterial population in Soyang lake. For this purpose, total 294 cases of 18 physico-chemical and 2 bacterial parameters were observed. The major parts of the variance of the heterotrophic bacteria were interpreted as inorganic nitrogen and depletion of dissolved oxygen, and that of the psychrophilic bacteria was as depletion. of dissolved oxygen. But the season in summer and organic substance and phytoplankton blooming were minor factors for two bacterial population.
안태석,정미정,이은주,조규송 ( Tae Seok Ahn,Mi Jeong Jeong,Eun Joo Lee,Kyu Song Cho ) 한국하천호수학회 1995 생태와 환경 Vol.28 No.2
To scrutinize the biological effects of plankton communities to bacterial community, the total bacterial numbers, chlorophyll a concentration and phytoplankton, zooplankton communities were analyzed in Lake Soyang from May 13, to July 14, 1994. At Om depth, total bacterial numbers positively correlated with chlorophyll a concentration. On the other hand, at 2m depth, the two parameters had negative correlation. At the middle of the June, when dominants of phytoplankton, zooplankton were changing, the bacterial numbers dropped down. These results suggest that as the Anabaena becoming dominant species, the some zooplankton species changed to bacterivore. The bacterial community was mainly effected by phytoplankton at Om, and by zooplankton at 2m depth.
안태석,이동훈,김범철,조규송 ( Tae Seok Ahn,Dong Hun Lee,Bomchul Kim,Kyu Song Cho ) 한국하천호수학회 1988 생태와 환경 Vol.21 No.3
The values of total bacterial numbers, heterotrophic bacterial numbers, the proportions of specific enzyme releasing bacteria and microbial activities were measured in the five artificial reservoirs in North Han river. The values of total bacterial number ranged from 0.62 x 10E5 to 21.09 x 10E5 cells/ml, which is the common values in mesotrophic lakes. With the effect of civil construction at the upper region of the North Han river, the proportions of alpha-glucosidase-releasing bacteria were higher in Lake Paro and Lake Chuncheon. Beta-glucosidase proportions were high in Lake Paldang and showed high correlation with the concentration of chlorophylla. The alkaline phosphatase proportion were higher in Lake Paro, Lake Chuncheon and Lake Paldang. The turnover rate of acetate showed no relationship with any other trophic state index items, such as chlorophyll concentration, phosphate concentration and primary productivity. But the phosphatase activity showed high correlation coefficience, and it should be estimated as a trophic state index in these artificial reservoirs.