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This study was investigated a optimum planting density of urban public park in seoul. Eight species commonly usd as landscape plants were selected. The survey was conducted to measure hight and width of the trees by five years interval. The results are summarized as follows. The average annual growth rates of the trees after planting were 7.4% in height 11.7% in width. Faster grown trees than average growth rate of the survey tres wee Metasequoia, glyptostroboides and Acer buergerianum, While the slower grown trees were Pinus koraiensis, Ginkgo biloba and Zelkova serrata. The average grown trees were Pinus strobus, Pinus densiflora and Acer palmatum . The planting density of survey area was 0.20tree/$m^2$. The optimum planting density was kept until five years after planting, however overcrowding density was found beyond five years after planting. This study also found the density of ten years after planting reaches about 3 times of optimum density.

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This study was investigated a optimum planting density of urban public park in seoul. Eight species commonly usd as landscape plants were selected. The survey was conducted to measure hight and width of the trees by five years interval. The results are summarized as follows. The average annual growth rates of the trees after planting were 7.4% in height 11.7% in width. Faster grown trees than average growth rate of the survey tres wee Metasequoia, glyptostroboides and Acer buergerianum, While the slower grown trees were Pinus koraiensis, Ginkgo biloba and Zelkova serrata. The average grown trees were Pinus strobus, Pinus densiflora and Acer palmatum . The planting density of survey area was 0.20tree/$m^2$. The optimum planting density was kept until five years after planting, however overcrowding density was found beyond five years after planting. This study also found the density of ten years after planting reaches about 3 times of optimum density.

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°¡½Ã¿À°¡ÇǸ¦ ½Ç¿Â¿¡¼­ petroleum ether·Î ÃßÃâÇÑ polyacetyleneÀÇ µ¿Á¤Çϱâ À§ÇÏ¿© TLC, HPLC, UV spectrum, IR, NMR·Î ¼öÇàÇÏ¿´´Ù. TLC¿¡ Àü°³½ÃŲ °á°ú, polyacetylene Ç¥ÁØÇ°°ú µ¿ÀÏÇÑ band°¡ fraction 5¿¡¼­ È®ÀεǾúÀ¸¸ç, HPLC¿¡¼­ fraction 5¸¦ ºÐ¸®½ÃŲ °á°ú retention timeÀÌ 4.40, 5.36, 6.40ºÐÀ̾ú´Ù. À̸¦ UV spectrum¿¡¼­ È®ÀÎÇÑ °á°ú, 6.40ºÐÀÇ peak(compound 3)¿¡¼­ polyacetylenesÀÇ ÆÄÀåÀÎ 231.0nm, 239.0nm, 257.0nmÀ» ³ªÅ¸³»¾ú´Ù. IR spetrum¿¡¼­ triple bond $2256cm^{-1}$°ú double bond $1654cm^{-1}$ÀÇ ÀüÇüÀûÀÎ peak¸¦ ³ªÅ¸³»¾úÀ¸¸ç, $^{13}C$-NMR(400MHz, $CDCl_3$)¿¡¼­ polyacetylenes ÀüÇüÀûÀÎ 64.0, 71.2, 74.2, 80.2ppmÀº 2°³ÀÇ triple bond¿¡ ÀÇÇÑ peak¿Í 121.89, 133.0ppm¿¡¼­ internal double bond·Î °áÇÕµÈ 2°³ÀÇ peak¸¦ È®ÀÎ ÇÒ ¼ö ÀÖ¾ú´Ù.

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There were four types of Doenjang fermentation as following conditions for investigation ; 1) low temperature fermentation at 13¡É for 180 days, 2) low temperature at 13¡É for 7 days to room temperature at 30¡É for 10 days, to low temperature at 13¡É for 163 days, and for 173 days, 3) low temperature at 13¡É 7 days to room temperature at 30¡É, 4) room temperature at 3 0¡É for 180 days. There were no changes of moisture, NaCl and total nitrogen content during fermentation period of four types conditions, but pH and amino type nitrogen decreased in room temperature at 30¡É for 180 days. It required 3 times more fermentation period until same quantity of the amino type nitrogen. The low temperature fermentation sample was lower than room temperature fermentation sample in pH and amino type nitrogen. The yeast decreased in low temperature fermentation sample taken 15 to 30 days longer than room temperature sample. The yeast is increased up to 30 days, and decreased little by little. After 60 days, it remained a few without effectiveness on the Doenjang quality. The low temperature fermentation sample showed brighter than room temperature fermentation sample. Different fermentation condition affected Doenjnag quality, especially, low temperature fermentation sample showed bright color in Doenjnag. So low temperature fermentation must be expected as good method for getting high quality Doenjnag.

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This study was conducted to isolate polyacetylenes from the Acanthopanax senticosus and to identify the chemical structure of the polyacetylenes by UV, IR, ©öH-NMR and ©ö©øC-NMR. One of the liposoluble materials was extracted with petroleum ether. Polyacetylene compounds were collected through solvent fractionation at silica gel column chromatograph. The HPLC was used for the semi-preparative separation IR spectra of fraction 5 showed triple bonds at 2256 §¯ {©ö and double bond at 1654 §¯ {©ö, respectively, ©öH-NMR spectra of Fraction 5 showed the double bond at 5.35-5.48 ppm. Triple bond at 64.0. 71.2, 74.2, 80.2 ppm and double bond at 121.89, 133.0 ppm were observed in the ©ö©øC-NMR spectra.

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