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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
The Korean Journal of Ecology
Journal Basic Information
Journal DOI :
The Ecological Society of Korea
Editor in Chief :
Volume & Issues
Volume 6, Issue 4 - Aug 1983
Volume 7, Issue 3 - Jun 1983
Volume 6, Issue 3 - Jun 1983
Volume 7, Issue 2 - Apr 1983
Volume 6, Issue 2 - Apr 1983
Volume 6, Issue 1 - Feb 1983
Selecting the target year
Environmental Changes of the Rivers in Taegu Area after a Heavy Rain
Lyu, Seung-Won ; Song, Seung-Dal ;
The Korean Journal of Ecology, volume 6, issue 2, 1983, Pages 81~89
The change of environmental factors with flow rates were studied quantitatively for two rivers, the Nakdong River and the Sin stream, which have different basins in ecosystem structures, during short period after a heavy rain. In the Nakdong River, transparency, DO, alkalinity and hardness were negatively correlated with the flow rate by logarithmic function, but the concentration of SiO2 was relatively constant regardless of the flow chage. In the Sin stream, transparency, alkalinity, hardness and the concentration of NH3-N, NO2-N and SO4= showed negative correlation with the flow rate by logarithmic function. The ratios of maximum to minimum values for aquatic environmental factors during the samller than that for flow rate in the respective rivers (28 in the Nakdong R.; 50 in the Sin S.). Immediately after the heavy rain, the concentrations of NO2-N, NH3-N and PO4-P in the Sin stream were 8, 6 and 1 times as high as those in the Nakdong River, respectively, but in the stable flow state, those became 94, 25 and more than 10 times, respectively. The load for most of the dissolved environmental constituents changed similarly to the flow rate in both rivers. It is notable that, at the stable flow state, the loads for NH3-N (59g/sec) and NO2-N (3.3g/sec) in the Sin stream were 4.3 and 1.3 times as high as those in the Nakdong River.
Seasonal Changes in the Productivity and Soil Nutrients of Phragmites communis Community in the Salt Marsh of the Sumjin-River Estuary
Oh, Kyung-Hwan ; Ihm, Byung-Suh ;
The Korean Journal of Ecology, volume 6, issue 2, 1983, Pages 90~97
Seasonal changes of the soil nutrient contents and aboveground biomass, relationship between the soil nutrients and the productivity, and the net efficiencies of solar energy conversion were studied in two reeed communities (Phragmites communis Trin.) at the salt marsh in the estuary of the Sumjin-River from April 30 to October 9, 1981. The inorganic nutrients such as exchangeable sodium and potassium of soil were decreased during growing season. The amounts of organic matter, exchangeable sodium and potassium, total nitrogen, and available phosphorus in stand
were much more than those of stand
. Productivity of Phragmites communis was positively correlated with the soil nutrients such as available phosphorus, exchangeable potassium and total nitrogen. The maximum dry matter productions of the aboveground parts in stand
in August, and the net coversion efficiencies of PhAR based on growing season (April to September) were 1.77% and 1.33%, respectively.
Ecological Effects of Zinc and Lead on Plants
Park, Bong-Kyu ; Kim, Ok-Kyung ;
The Korean Journal of Ecology, volume 6, issue 2, 1983, Pages 98~105
This study was carried out to investigate the effects of Zn and Pb concentration on seed germination and plant growth in water and soil culture, and the frequency of chlorosis invegetation and the relationship between plants and soil in the Sambo mine. The inhibition of germination were observed in 1000ppm of Zn, 10ppm of Pb and 5000ppm of Zn + Pb, but germination was more stimulated in 10ppm of Zn than control. The symptoms of chlorosis and abnormality were occurred in plant leaves grown to the soils treated with more than 1000ppm of Pb. Reasons of chlorosis were considered as an antagonistic effect of other metals towards uptake of iron by the plant in Zn treatment. The contents of Zn and Pb in fruits were lower than those of leaves, and that was remarked in case of Pb. With increasing rate of Zn and Pb treatment, chemical components of soils in pot culture were accompanied by slight decrease in pH, total nitorgen and exchangeable K. Chlorotic individuals of 10 species were shown in the areas of the Sambo mine. Chlorotic symptoms were especially extensive and severe in Sophora angustifolia, Populus alba, Spiraea prunifolia, Amorpha fruticota, Lespedeza bicolor and Salix dependens. Plants in the investigated areas grew in soils containing Zn of 311ppm and Pb of 151ppm on an average, and accumulated Zn of 2084ppm and Pb of 49ppm.
Influence of Cu[II] on the Growth of Korean Axolotl, Hynobius leechii
Park, Jin Ho ; Won Hark Park ; Sang Ock Park ;
The Korean Journal of Ecology, volume 6, issue 2, 1983, Pages 106~113
The growth of Korean axolotl., Hynobius leechii, was analyzed in natural water as control group and in six copper ion groups contaminated by 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 ppm of copper ion. The copper ion checks the growth of the axolotl. The axolotl was not survived during 30 days in the copper ion of 0.3ppm, and, in the 0.4ppm the axolotl was not survived during 10 days after hatch. The growth of head width and body length show a convexing increase pattern, while that of hind leg shows a concaving increase pattern. The copper ion checks the development of hind leg. In the growth quantity of head width, body length and hid leg, that of natural water show the most rapid increase pattern, and copper ion groups of 0.1, 0.2, 0.3ppm follow in that order. The coefficient of relative growth(
) of control group is the greater value, and the copper ion groups of 0.1, 0.2, 0.3ppm follow in that order. The contaminated groups show the negative allometry in the relative growth of the containated groups to the natural water. Body length shows positive allometry, while hind leg shows negative allometry in the relative growth to head width.
Studies on the Classification, Productivity, and Distribution of
and CAM Plants in Vegetations of Korea(II. Production and Productivity of
Lee, Sung-Kyu ; Chang, Nam-Kee ;
The Korean Journal of Ecology, volume 6, issue 2, 1983, Pages 114~127
The production and productivity of
type plants in Korea was studcied In the areas, in which the summer temperature is above
type plants showed“M” type productivity curves exhibiting two peaks in spring and autumn, and C4 type plants showd “Bell” type productivity curves which show one peak in summer(Figs. 1,2,3,4,5). From the result of researching the standing crop of
type plants dcuring August and September in which the standing crop reaches the highest peak, the dominant plants in the natural grass vegetation were almost all of
type plants, showing the high standing crop, while the standing crop of
type plants shows its high peak in the humid areas, riversides and dams.
Studies on the Classification, Productivity, and Distribution of
and CAM Plants in Vegetations of KoreaIII. The Distribution of
Chang, Nam-Kee ; Sung-Kyu Lee ;
The Korean Journal of Ecology, volume 6, issue 2, 1983, Pages 128~141
The districbution of
type plants in Korea were studied. In the standpoint of photosynthetic types, plant distribution in Korea is classified as
type plant zones. The forest destroyed by man interference, cultivating areas, and seashore areas are characterized by the dominant of
type plants.(Figs. 2, 3, 4, 5) According to the results of this study,
type plant distribution in Korea has a great relation to the habitat of plant vegetation (Table 1). The arid areas were in high proportion of C4 flora percenntages, while the well-developed woody forests or the vegetation of humid areas were in lower proportion(Fig.8).
Effects of Triacontanol on the Yield of Raphanus acanthiformis and Brassica campestris
Lim, Ung Kyu ;
The Korean Journal of Ecology, volume 6, issue 2, 1983, Pages 142~144
The results of the research on the yield of Chinese Cabbage and Chinese Radish by tricontanol treatment showed an increase of 83% in Cabbage and that of 108.4% in Radish.
Cluster Analysis of the Foliose Lichens in Mt. Duckyoo
Park, Seung Tai ;
The Korean Journal of Ecology, volume 6, issue 2, 1983, Pages 145~151
The epiphytic lichen communities were analysed in terms of cluster analysis on forty two stands and eight environmental variables in Mt. Duckyoo. Ordination of stand and species by principal component analysis (PCA) and sum of square algorithm (SSA) gave similar results. Species cluster showed three groups(I, II, III) and stand revealed three groups (A, B, C). Interaction of stand and species cluster was interpreted by analysis of concentration technique. The results indicated a significant cluster structure at the level of different environment variable.