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정일민,김광호,송동규,강병화,Chung, Il-Min,Kim, Kwang-Ho,Song, Dong-Kyu,Kang, Byeung-Hoa 한국환경농학회 1999 한국환경농학회지 Vol.18 No.1
벼 품종의 오존처리에 대한 생리반응의 차이를 조사하여 내성품종을 선발하는데 이용하고자 실험을 실시한 결과는 다음과 같다. 1. SOD활성은 오존을 한번 처리 했을 때 백운찰벼, 두번 처리시 일품벼 및 인부지나도에서 무처리구와 차이를 보였으나, 세번 처리할 경우 상남밭벼, 한강찰벼를 제외한 모든 품종에서 처리간 유의성을 보였다. POD활성은 오존 세번 처리시 상남밭벼, 한강찰벼, 일품벼와 인부지나도에서 무치리구와 유의성을 보이지 않았다. 2. 벼 잎의 아미노산 함량은 오존처리구가 무처리구에 비해 phenylalanine함량이 높은 경향을 보였다. 특히 상남밭벼에서는 오존처리에 의한 phenylalanine 함량의 증가가 뚜렷하였다. 3. 상남밭벼는 오존처리구와 무처리간에 외관상의 생육특성은 차이가 있으나 등숙율에서는 차이가 인정되지 않았고, 저항성기작에 관여하는 물질로 알려진 SOD와 POD 활성도가 높으며, 특히 저항성물질의 합성에 관련되는 전구물질인 phenylalanine 함량이 오존처리구에서 증대되는 것으로 보아 오존내성이 강한 품종으로 생각된다. This experiment was conducted to select and utilize the tolerant rice varieties for ozone stress through comparing the physiological responses. In SOD activity, Backunchalbyeo which treated once by 0.15 ppm $0_3$, Ilpumbyeo and Inbujinado treated twice showed significantly different SOD activity compared with $non-O_3$ treatment. No significant difference of SOD activity in three-times $0_3$ treated Sangnambatbyeo and Hangangchalbyeo was found as compared to ($non-O_3$ treated)control, POD activity, when Sangnammbatbyeo, Hangsngchalbyeo, Ilpumbyeo and Inbujinado were sequently treated by third ozone, showed no significant difference between $O_3$ treatment and $non-O_3$. In the comparison of amino acid content in rice leaf blade between three times $O_3$ treatment and $non-0_3$ treatment in 3 varieties, phenylalanine content represent as increased quantities. Especially, in three times $0_3$ treatment of Sangnambatbyeo, phenylalanine content(O.66 mg/g) was significantly increased as compared with $non-O_3$. Visual-growing characters of Sangnembatbyeo were significantly different between $0_3$ treatment and non-treatment. However, grain-filling rate showed no difference. SOD and POD related to resistant mechanism were high activity. In addition, phenylalanine known as precursor which is synthesized resistant materials was increased by $0_3$ treatment. These results suggested that Sangnambatbyeo which increased SOD and POD activity, and phenylalanine content under ozone stress could be selected as a tolerant variety.
슬러지를 이용하여 생산한 인공토양의 흡착 및 용출 특성
윤춘경 ( Yoon Chun Gyeong ),김선주 ( Kim Sun Joo ),임융호 ( Lim Yung Ho ),정일민 ( Chung Il Min ) 한국농공학회 1998 韓國農工學會誌 : 전원과 자원 Vol.40 No.4
Adsorption and leaching characteristics of the artificial soils produced from water and wastewater treatment sludges were examined. The batch adsorption test and TCLP leaching test were used, and constituents of interest were heavy metals and nutrients. As, Cr, Cu, Pb, and Cd were analyzed for metals, and nitrogen and phosphorus were analyzed for nutrients. All the artificial soils showed strong adsorption and low leaching for the heavy metals, which implies that the artificial soils may not be hazardous to the environment due to heavy metals and even they can be utilized effectively to remove metals in solution like mine and industrial wastewaters. This is quite promising result because in most case heavy metals are the most concern in the application of sludge product to the farmland. For the nutrients, generally, artificial soils showed high adsorption and low leaching except artificial soil from wastewater sludge produced by low temperature firing. The artificial soils produced from water treatment sludge were active in adsorbing nutrients and showed low leaching that they can be practically used to remove nutrients in advanced treatment process of the wastewater. The artificial soils produced from wastewater treatment sludge were less active in adsorbing nutrients and showed high teaching. However, they could be used usefully if applied properly to the plant growing because of their fertilizing effect. Based on the test results, overall, the artificial soils were thought to be not hazardous to the environment and they could be more useful if applied properly.
오수처리수 관개 벼재배를 통한 농업용수 수질기준의 검토
윤춘경 ( Yoon Chun Gyeong ),권순국 ( Kwun Soon Kuk ),정일민 ( Chung Il Min ),권태영 ( Kwon Tae Young ) 한국농공학회 1999 韓國農工學會誌 : 전원과 자원 Vol.41 No.2
Agricultural water quality standards were reviewed through rice culture using treated sewage irrigation. The sewage from school building of Konkuk University was treated by a constructed wetland system, and the effluent of the system was irrigated for rice culture after nutrient concentration adjusted by dilution. Average concentration of COD, SS, T-N and T-P in irrigated water was 22.3mg/ ℓ, 6.5mg/ ℓ, 25.8mg/ ℓ, and 2.2mg/ ℓ, respectively. Treatment include irrigation of adjusted effluent with conventional fertilization (TWCF), adjusted effluent with no fertilization (TWNF). and effluent of the wetland system as it was with no fertilization (SWNF). These treatment plots were compared with control plot irrigated by tap water with conventional fertilization (CONTROL). Other environments for rice culture were identical for all the plots. Among them, TWCF showed the best growth rate and the highest yield, and constituents in the harvested rice showed not much difference among them. Which implies that irrigation with relatively high nutrient concentration compared to the current water quality standards may cause no adverse effect on rice culture and could be even beneficial. Although T-N for this study was 25 times greater than the current standards, rice culture was not adversely affected by irrigation water quality and even better results were observed than the CONTROL. It could be mistakenly that clean irrigation water produces better agricultural product, however, it is not necessarily true. Irrigation water with moderate nutrient concentration can enhance the plant growth, and better result might be expected. Therefore, peer review and modification if necessary are needed to the current agricultural water quality standards, especially for the nutrient components.
김광호,이상각,강병화,심상인,정일민,이병모 한국환경농학회 1999 한국환경농학회지 Vol.18 No.1
본 실험은 간척지 식물들의 내염성 정도를 알아보고 식물의 내염성 기작을 규명하고자 14종의 식물을 공시하여 이들의 생리적 변화를 확인하였다. 염 농도가 높아질수록 식물체내의 프롤린 함량은 증가하였다. 깨풀, 도깨비바늘, 붉은서나물, 망초, 미국개기장, 까마중은 200mM NaCl에서 급격한 함량 증가를 보였으나 가는갯는쟁이, 나문제는 변화의 폭이 작았다. 또한 염 농도가 높아질수록 식물내 Na^+, Cl^-의 함량은 모두 증가하였다. 비염생식물인 깨풀, 바랭이, 까마중은 200mM NaCl에서 Na^+과 Cl^-은 증가폭이 컸고 나문제, 가는갯는쟁이, 갯개미자리는 200mM까지 Na^+, Cl^-은 증가폭이 작았다. 염 농도가 높아질수록 K^+/Na^+율은 감소하였고, 염생식물인 나문제, 가는갯는쟁이, 갯개미자리의 K^+/Na^+ 율은 감소폭이 작아 세포내 이온균형의 항상성이 유지되고 있음을 보여주었다. This study was conducted to obtain the basic information on saline tolerance of plants. Fourteen plant species were grown under different salinity adjusted with NaCl. After 14 days treatment, physiological changes were investigated. Proline contents of tested plants were increased as salinity was increased. Acalvpha australis, Bidens bipinnata, Erechitites hieracifolia, Erigeron canadensis, Punicum dichotomiflorum, and Solanum nigrum showed drastic increase of proline contents in 200mM NaCl treatment. But Atriplex gmelini, Suaeda asparagoldes did not show drastic increase. As the NaCl concentration increased to 200mM in media, both contents of Na^+ and Cl^- were increased. Acalypha australis, Digitaria sanguinalis, Erechitites hieracifolia, and Solanum nigrum showed drastic increase in Na^+ and Cl^- contents under 200mM NaCl. But Suaeda asparagoides. Atriplex gmelini, and Spergularia marina were slightly increased. As salinity increased, the K^+/Na^+ ratio of halophytes, such as Suaeda asparagoides, Atriplex gmelini, and Spergularia marina were more slightly decreased than glycophytes.