• River and Culture
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• v.2 no.4
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• pp.51-55
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• 2006

지금 안양천은 하천 살리기 운동에 의하여 자연생태계가 되살아나고 있다. 버들치, 밀어, 얼룩동사리 등의 물고기가 돌아오고 있으며, 물억새 부들 등 하천변 풀들이 되살아나고 있다. 이 하천에 만물(萬)이 고루 번성하고 생육하니(安), 만안(萬安)함이 다리 이름 그대로이다.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2009.04a
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• pp.137-141
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• 2009

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2008.10a
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• pp.160-164
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• 2008

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2008.04a
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• pp.82-93
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• 2008

• Proceedings of the Turfgrass Society of Korea Conference
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• 2004.01a
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• pp.55-56
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• 2004

• The Korean Journal of Ecology
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• v.23 no.1
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• pp.45-49
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• 2000

Tolerances of aquatic plants (emergent plants) of cattail (Typha orientalis), water oats (Zizania latifolia), reed (Phragmites communis), and bulrush (Scirpus nipponicus) to salts and high NH₄/sup ＋/-N cone. of industrial wastewater were evaluated. Evapotranspiration of cattail and water oats plants was not affected when the wastewater containing 130 ppm NH₄/sup ＋/-N with electrical conductivity of 3.0 dS/m was supplied for 5 months. Shoot and root dry wt. of cattail and water oats were rather increased by irrigation of the wastewater while the biomass production of bulrush was greatly reduced. Storage nitrogen concentration in tissues of water oats and reed plants were higher than those in cattail and bulrush. Thus, water oats and reed plants were found to be the better aquatic plants to use in constructed wetlands for treating industrial wastewater of high salt and NH₄/sup ＋/-N.

• Korean Journal of Plant Resources
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• v.15 no.3
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• pp.279-284
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• 2002

To establish the mass propagation method of Typha orientatis Presl, several factors influencing seed germination were investigated. The best seed germination of T. orientalis was achieved under the light and 25~3$0^{\circ}C$ temperature. GA$_3$ tended to enhance seed germination, and 500 mg.L$^{-1}$ GA$_3$ showed 90.7% germination, which was 1.2 times of control. Compared to control, BA treatment prohibit seed germination. Especially, seeds were not germinated under 500 mg.L$^{-1}$ BA treatment. In case of KNO$_3$ and Ca(NO$_3$)$_2$ treatment, the germination rate was decreased by all concentrations, except 100 mM Ca(NO$_3$)$_2$.

• Korean Journal of Soil Science and Fertilizer
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• v.44 no.5
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• pp.794-800
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• 2011

To develop biochar for soil conditioner using water plants, characteristics of nutrients release of biochars were investigated under different water plants, manufacturing times and manufacturing temperatures. Under different water plants for manufacturing biochar, the concentrations of T-N and $P_2O_5$ in the water with biochars were higher in the order of CRXDM > ZIZLA > PHRCO > TYHOR > MISSA. The concentrations of $K_2O$ in the water were in the order of TYHOR ${\fallingdotseq}$ CRXDM > ZIZLA > PHRCO > MISSA. Under different manufacturing times for biochar, the concentrations of T-N, $P_2O_5$ and $K_2O$ in the water with biochars were higher in the order of 2 hr > 30 min ${\fallingdotseq}$ 1 hr. The concentrations of T-N, $P_2O_5$ and $K_2O$ in the water with biochars were on the order of $350^{\circ}C$ > $500^{\circ}C$ > $600^{\circ}C$ under different manufacturing temperatures. Total amounts of T-N and $K_2O$ releases in the water with biochars were higher in the order of CRXDM > ZIZLA > PHRCO > TYHOR > MISSA. Using biochars by water plants, total amounts of $P_2O_5$ releases in the water with biochars were on the order of CRXDM > ZIZLA > MISSA >PHRCO > TYHOR. The results of this study suggest that biochars by water plants can supply some of the nutrient requirements of crops and can be a valuable fertilizer.

• Korean Journal of Agricultural Science
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• v.36 no.1
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• pp.111-122
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• 2009

When the cattail pollen was identified by using fibrinolytic agents, we found that the fibrinolytic activity was controlled by an enzyme. Therefore, for determining the fibrinolytic activity of cattail pollen, the fibrinolytic enzyme in cattail pollen was purified by gel filtration using DEAE-cellulose, Sephadex G-150 and HPLC. Also, its purity was certified by polyacrylamide gel electrophoresis, and its physico-chemical properties, such as pH and temperature stabilities and effects of metal, inhibitors and substrates, were examined. The specific activity, purification fold, and molecular weight of the enzyme were 38U/mg, 86.4,and 75kDa, respectively. The optimum pH for the purified enzyme was at 4.0 and it was stable at pH 4.0-6.0. The optimum temperature was $55^{\circ}C$ and it was stable at $30-60^{\circ}C$. But the enzyme began to be inactivated at $70^{\circ}C$ and its activity was totally lost at temperatures above $80^{\circ}C$. As for substrate specificity, the enzyme was most effective in dissolving fibrin, followed by whole casein, ${\kappa}$-casein, ${\alpha}$-casein, ${\beta}$-casein, and BSA. With casein as the substrate, Km value was found to be 0.44mM and the enzyme showed a high affinity for casein. As for the metal ions affecting enzyme activity, $K^+$, $Na^+$, and $Mg^{2+}$ had no effect on enzyme reaction while $Zn^{2+}$ and $Fe^{2+}$ showed potent inhibitory activity. Judging from the fact that the purified enzyme was also strongly inhibited by PMSF, iodoacetic acid, and SDA, it assumed to be a serine protease.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2009.10a
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• pp.43-47
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• 2009