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도시하천 제방사면에 식재한 다년생 초본류의 군락 형성 비교
양홍모,Yang, Hong-Mo 한국조경학회 2014 韓國造景學會誌 Vol.42 No.1
도시하천 제방사면의 다년생 초본류 군락 형성 연구를 위해 2009년 4월 중순 물억새, 억새, 띠, 수크령, 새를 식재하였다. 새는 분주를 식재하였고, 나머지 초종은 이년생 포트를 식재하였다. 식재 후 3년간 매년 2회의 잡초 제거를 통해 2011년 군락이 형성되었다. 2012년과 2013년은 잡초를 제거하지 않고 실험초종이 군락을 유지하는지 관찰하였다. 잡초를 제거한 2011년과 잡초를 제거하지 않은 2012년간, 잡초를 제거하지 않은 2012년과 2013년간 줄기수와 초장에 차이가 있는지 5월, 7월 9월의 줄기수와 초장을 활용하여 유의수준 0.05에서 t-검정을 하였다. 실험초종 모두 2012년의 줄기수가 2011년보다 적어(p<0.001) 잡초의 피해를 입었다. 억새, 띠, 수크령, 새의 초장은 2012년이 2011년보다 작아 잡초의 피해가 나타났다. 물억새의 초장은 5월과 7월에 차이를 보여 잡초의 피해를 입었으나 (p<0.001), 9월에는 차이가 없어(p=0.098) 피해를 입지 않았다. 2012년과 2013년간t-검정 결과, 새를 제외한 나머지 초종은 줄기수와 초장에 차이가 없었다(p>0.05). 이들 초종은 군락이 형성된 후 잡초의 피해 없이 군락이 유지되었다. 새는 줄기수와 초장 모두 차이를 보여 잡초의 피해가 컸다. 물억새, 억새, 띠, 수크령은 군락 형성 후 잡초 제거 없이 군락이 유지되었으나, 새는 잡초의 피해가 커 군락 유지가 어려웠다. 군락 형성 및 유지, 하천경관 개선, 제방사면 보호의 관점에서 물억새, 억새, 띠가 적합한 것으로 나타났다. In order to investigate community formation ability, herbaceous perennials such as Miscanthus sacchariflorus Bentham, Miscanthus sinensis var. purpurascens Rendle, Imperata cylindrica Linne, Pennisetum alopecuroides (L.) Spreng. and Arundinella hirta Tanaka were planted in April 2009 at the levee slope of Gwangju Stream in South Korea. Miscanthus sacchariflorus Bentham, Miscanthus sinensis var. purpurascens Rendle, Imperata cylindrica Linne and Pennisetum alopecuroides (L.) Spreng. which grew in pots for two years and divided rhizomes of Arundinella hirta Tanaka gathered from fields were employed. Weeds growing on the experiment sites were removed twice a year until 2011 when the plant species were formed into community. Weeds were not eradicated during 2012 and 2013 to observe community sustainability of the species. T-tests on stem numbers and heights in May, July and September were conducted between 2011 and 2012, and between 2012 and 2013. Stem numbers of the five species in 2012 were significantly reduced(p<0.001) compared with those in 2011, which were attributed to weed growth in 2012. Heights of Miscanthus sinensis var. purpurascens Rendle, Imperata cylindrica Linne, Pennisetum alopecuroides (L.) Spreng. and Arundinella hirta Tanaka in 2012 were significantly lower than those in 2011(p<0.001), which resulted from weed invasion. Heights of Miscanthus sacchariflorus Bentham in May and July 2012 were significantly decreased compared with those in 2011(p<0.001), however, heights of Miscanthus sacchariflorus Bentham in September 2012 were almost the same as those in 2011(p>0.05). Miscanthus sacchariflorus Bentham was able to compete against weeds in September 2012. Stem numbers and heights of Miscanthus sacchariflorus Bentham, Miscanthus sinensis var. purpurascens Rendle, Imperata cylindrica Linne and Pennisetum alopecuroides (L.) Spreng. in 2013 were similar to those in 2012(p>0.05). However, stem numbers and heights of Arundinella hirta Tanaka in 2013 were significantly decreased compared with those in 2012(p<0.001). After community formation, Miscanthus sacchariflorus Bentham, Miscanthus sinensis var. purpurascens Rendle, Imperata cylindrica Linne and Pennisetum alopecuroides (L.) Spreng. were able to maintain its community without weed removal. However, Arundinella hirta Tanaka was unable to establish its community due to the weed growth. Miscanthus sacchariflorus Bentham, Miscanthus sinensis var. purpurascens Rendle, Imperata cylindrica Linne are more suitable to stream levee slope environment in terms of community formation and maintenance, stream landscape enhancement and slope erosion control.
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梁弘模 全南大學校 農業科學技術硏究所 1993 農業科學技術硏究 Vol.28 No.-
Climatic conditions, especially air temperature and solar radiation, are major influential factors for the operation of a wastewater treatment pond system. In order to assess its applicability to Korea, air temperature and solar radiation of the wastewater treatment pond systems in Corinne, Utah, and Eudora, Kansas, which are located in temperate region of the U.S. are compared with those of the Kimpo rice field located in the mid-western part of Korea. An analysis is also conducted of algal concentrations and water temperature of primary ponds of the two systems. Air temperature of Kimpo is quite similar to that of the systems, and solar radiation of Kimpo is more conductive than that of the systems to the growth of algae during summer. Analysis of ???? and SS concentrations in the final effluent of the systems shows that they meet the secondary treatment standards set by the U.S. Environmental Protection Agency. The study demonstrates that a wastewater treatment pond system which is similar in design to the two systems can be reliably utilized at Kimpo, Korea.
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양홍모 대한상하수도학회 1995 상하수도학회지 Vol.9 No.2
The applicability to Korea is examined of a pond system which treats and recycles wastewaters. Air temperature and solar radiation of the pond systems at Corinne, Utah, and Eudora, Kansas, which are located in temperate regions of the U.S., are compared with those of Kimpo lying in the mid-western part of Korea. Analyzed are also BOD_5 and SS concentrations, algal concentrations, pH levels, and water temperature of the two systems. Air temperature o Kimpo is quite similar to that o the two systems, and solar radiation of Kimpo is more conducive than than of the systems to the growth of algae during summer. Analysis of Bod6 and SS concentrations to the final effluent of the systems shows that they meet the secondary treatment standards. The study demonstrates that a wastewater treatment pond system which is similar in design to the systems con be reliably utilized at Kimpo, Korea, A model is proposed which can integrate a pond system with aquaculture and agriculture.
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생태적 축산폐수 처리 및 재활용 연못시스템의 폐수처리수준
양홍모,이종욱 ( Hongmo Yang,Chong Ouk Rhee ) 한국환경농학회 1998 한국환경농학회지 Vol.17 No.1
A model of pond system is developed for treatment and recycling of excreta from twenty-five adult dairy cattle. It is composed of wastewater treatment ponds and small fish ponds. Those are three facultative ponds in series; primary-secondary-tertiary pond and these are designed to rear carps without feeding. A pit is constructed at the bottom of primary pond for efficient sludge sedimentation and effective methane fermentation. It is contrived to block into it the penetration of oxygen dissolved in the upper layer of pond water. The excreta from the cattle housed in stalls are diluted by water used for clearing them. The washed excreta flow into the pit. The average yearly BOD_5 concentration of influent is 398.7㎎/ℓ. That of the effluent from primary, secondary and tertiary pond of the system is 49.18, 27.9, and 19.8㎎/ℓ respectively. Approximate 88, 93, and 95 % of BOD5 are removed in each pond. The mean yearly SS concentration of influent is 360.5㎎/ℓ. That of the effluent from each pond is 53.4, 45.7, and 32.7㎎/ℓ respectively. Approximate 86, 88, and 91% of SS are removed in each pond. The BOD_5 concentration of secondary and tertiary pond can satisfy 30㎎/ℓ secondary treatment standard. The SS concentration of effluent from tertiary pond, however, is slightly greater than the standard, which results from activities of carps growing in the pond. The average yearly total nitrogen concentration of influent is 206.8㎎/ℓ and that of the effluent from each pond is 48.6, 30.8, and 21.0㎎/ℓ respectively. Approximate 74, 88, and 90% of total nitrogen are removed in each pond. The mean yearly total phosphorous concentration of influent is 20.7㎎/ℓ and that of the effluent from each pond is 5.3, 3.2, and 2.1㎎/ℓ respectively. Approximate 97, 98, and 99% of total phosphorous are removed in each pond. The high removal of nitrogen and phosphorous results from active growth of algae in the upper layer of pond water. Important pond design parameters for southern part of Korea -- areal loading of BOD5, liquid depth, hydraulic detention time, free board, and pond arrangement -- are taken up.
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