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RISS 인기검색어
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- 저자 : 엄규백(Kyu Back Uhm) (검색결과 2 건)
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정영호(Young Ho Chung),엄규백(Kyu Back Uhm) 한국식물학회 1961 Journal of Plant Biology Vol.4 No.2
CHUNG, Yung HO, and Kyu Baek UHM. (Dept. of Botany, Seoul National University.) Moss flora on Mt. Odae in its climatic aspects. Kor. Jour Bot 4(2) 33~40 1961 The moss flora and it`s geoecological study were made on Mt. Odae which is situated in the eastern part(37˚43` N. Lat., 120˚30` E. Long) of Korea. The total number of mosses collected on Mt. Odae in the autumn of 1960 is 50 species, 1 varieties and 1 subspecies, belonging to 23 families. For climate index, Warmth index and Humidity index were calculated on Mt. Odae. From the result, it was known that the c1imate of Mt. Odae is Humid temperate climte and that it`s vegetation zone is Deciduous broad-leaf forest zone. Moss Quotient of this mountain is 1.21 and it indicates that the plant climate of Mt. Odae is Hemicryptophytic climate. The moss flora of this mountain was discussed from the pnytogeographical point of view. The flora consists of the following elements: Holaectic element: 20 species (38.5%) North Pacific element: 1 (1.9%) Cosmopolitan element: 6 (11.6%) Tropical element: 1 (1.9%) East Asiatic element: 12 (23.05%) Korean-Japan element: 12 (23.05%) Coefficient of closeness was also calculated between the moss flora of Mt Odae and that of Mt. Sulak and Mt. Kwanak. It was known, therefore, that the flora relation between Mt. Odae and the Mt. Sulak was closer than that between Mt. Odae and Mt. Kwanak.
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장자못의 생태학적 연구 - 제2보 춘계 장자못의 기초생산
엄규백(Kyu Back Uhm),김한집(Han Jip Kim) 한국식물학회 1974 Journal of Plant Biology Vol.17 No.2
A study was made on the primary production of Lake Changjamot during the spring season of 1973 by means of the oxygen method. The stratification of temperature and dissolved oxygen were formed in May with the stratified structure of Phytoplankton. The range of Secchi disc transparency was from 0.8m to 2.3m during the nine months of this investigation, which was begun in January, 1973. The value was lowest in early June when the phytoplankton blooming reached the peak. The concentration of PO_4-P, NH_3-N, NO_3-N and NO_2-N was reduced at the beginning of the phyoplankton blooming and increased again after May except PO_4-P. It might have been caused by the inflow of the nitrogenous fertilizer from the surrounding agricultural area since May when farming was started. The total amount of chlorophyll-a in the entire water column varied from 25㎎/㎡ to 277㎎/㎡ from January till September with the maximum value occurring in early June. These values show a considerable eutrophication of the lake in comparison with the data obtained in 1969. The daily gross production in the lake varied from a low of 655㎎ C/㎡ to a high of 2,859㎎ C/㎡ during the spring season and this corresponds to the variation of the amount of chlorophyll. The total amount of daily respiration varies from 650㎎ C/㎡ in winter to 2,307㎎ C/㎡ in late spring and exceeds gross primary production especially in late May showing the negative balance of daily production and consumption of organic material at that time. In conclusion, Lake Changjamot is a fairly productive and a moderately autotrophic lake and has been eutrophicated much during the past four years.
ScienceON
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