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홍승길 ( Seung Gil Hong ),남재작 ( Jae Jak Nam ),신중두 ( Joung Du Shin ),옥용식 ( Yong Sik Ok ),최봉수 ( Bong Su Choi ),양재의 ( Jae E. Yang ),김정규 ( Jeong Gyu Kim ),이성은 ( Sung Eun Lee ) 한국환경농학회 2011 한국환경농학회지 Vol.30 No.1
BACKGROUND: High input to the arable land is contributed to increasing productivity with causing the global environmental problems at the same time. Rapeseed cultivation has been forced to reassess its positive point for utilization of winter fallow field. The Objective of this study was performed to assess the environmental impact of rapeseed cultivation with double-cropping system in paddy rice on Yeonggwang district using life cycle assessment technique. METHODS AND RESULTS: For assessing each stage of rapeseed cultivation, it was collected raw data for input materials as fertilizer and pesticide and energy consumption rate by analyzing the type of agricultural machinery and working hours by 1 ton rapeseed as functional unit. Environmental impacts were evaluated by using Eco-indicator 95 method for 8 impact categories. It was estimated that 216 kg CO2-eq. for greenhouse gas, 3.98E-05kg CFC-11-eq. for ozone lazer depletion, 1.78kg SO2-eq. for acidification, 0.28kg PO4-eq. for eutrophication, 5.23E-03kg Pb-eq. for heavy metals, 2.51E-05kg B(a)p-eq. for carcinogens, 1.24kg SPM-eq. for smog and 6,460 MJ LHV for energy resource are potentially emitted to produce 1 ton rapeseed during its whole cultivation period, respectively. It was considered that 90% of these potential came from chemical fertilizer. For the sensitivity analysis, by increasing the productivity of rapeseed by 1 ton per ha, potential environmental loading was reduced at 22%. CONCLUSION(s): Fertilization affected most dominantly to the environmental burden, originated from the preuse stage, i.e. fertilizer manufacturing and transporting. It should be included and assessed an indirect emission, which is not directly emitted from agricultural activities. Recycling resource in agriculture with reducing chemical fertilizer and breeding the high productive variety might be contribute to reduce the environmental loading for the rapeseed cultivation.
지구통계학적 기법에 의한 강원폐광부지 중금속의 공간적 분포 양상 예측 연구
김순아,이우균,김정규,신기일,권태협,현승훈,양재의,Kim, Su-Na,Lee, Woo-Kyun,Kim, Jeong-Gyu,Shin, Key-Il,Kwon, Tae-Hyub,Hyun, Seung-Hun,Yang, Jae-E 한국공간정보학회 2012 한국공간정보학회지 Vol.20 No.4
본 연구는 한강중상류유역에 위치한 강원광산부지로부터 발생한 중금속의 오염실태를 파악하고자 주성분 분석과 크리깅 공간통계기법을 시도하였다. 토양 심토에서 제1 주성분(PC1)의 경우 광산 주변의 정남쪽방향에서 정북방향으로 아연과 니켈의 농도가 점진적으로 확산되고 있었으며 제2 주성분(PC2)은 강원광산 중남부지역에서 카드뮴과 수은 함량의 농도가 높게 나타났다. 클러스터 분석결과, D그룹에서 비소와 구리 금속이 공간자기상관관계가 높게 나타났으며 비소의 경우 중금속 농도가 0.83mg/kg로 남에서 북쪽방향으로 증가하였다. 본 연구는 크리깅모델을 이용하여 광산부지로부터 오염토양의 중금속 분포 현황을 공간학적으로 파악할 수 있었고 향후 휴 폐광부지에서 위해성평가 및 정책당국의 결정권자들에게 오염토양 복원에 대한 의사결정시 도움이 될 것이다. This study was performed to evaluate the spatial distribution of heavy metals using principal component analysis and Ordinary Kriging technique in the Gangwon Mine site. In the soils from the sub soil, the contents of Zn and Ni in the PC1 were gradually dispersed from south to north direction, while the components of Cd and Hg in the PC2 showed an increase significantly from middle-south area in the Gangwon Mine site. According to the cluster analysis, pollutant metals of As and Cu were presented a strong spatial autocorrelation structure in cluster D. The concentration of As was 0.83mg/kg and shown to increase from the south to north direction. The spatial distribution maps of the soil components using geostatistical method might be important in future soil remediation studies and help decision-makers assess the potential health risk affects of the abandoned mining sites.
김정제,양재의,신영오,Kim, Jeong-Je,Yang, Jae-E,Shin, Young-Oh 한국토양비료학회 1996 한국토양비료학회지 Vol.29 No.2
소규모(小規模) 축산농가(畜産農家)에서 배출(排出)되는 돼지(돈(豚))분뇨폐수(糞尿廢水)를 처리(處理)함과 동시(同時)에 재활용(再活用)할 수 있는 방법(方法)을 찾기 위하여 볏짚을 살수여상법(撒水濾床法)의 충전재(充塡材)로 사용(使用)하였다. 폐수처리후(廢水處理後) 볏짚을 부숙(腐熟), 건조(乾燥), 분쇄(粉碎)하여 토양(土壤)에 첨가(添加)한 후(後) 오그라기 상치를 재배(栽培)한 결과(結果)는 다음과 같다. 1. 농가퇴비(農家堆肥)에 비(比)해 부숙(腐熟)된 짚을 처리(處理)했을 시(時) 수량지수(收量指數)가 월등(越等)히 높았으며 N.P.K. 기본(基本) 시비(施肥)에 부숙(腐熟)된 짚 1750 kg/10a로 시용(施用)했을 때 수량지수(收量指數)가 가장 높았다. 2. 부숙(腐熟)된 짚을 시용(施用)한 토양(土壤)의 화학적(化學的)인 성질(性質) 중(中) pH, T-N, ava.P2O5, OM, 그리고 Ex.K, Ca, Mg이 증가(增加)했는데 반(反)하여 CEC은 본래(本來)의 값으로 귀착(歸着)되는 경향(傾向)이었다. 3. 짚을 살수여상법(撒水濾床法)의 충전재(充塡材)로 사용(使用)했을 경우(境遇)의 BOD, COD, SS의 제거(除去) 효율(效率)이 통상적(通常的)인 충전재(充塡材)와 별(別) 차이(差異)가 없었다. A feasible way to utilize small-scale livestock farm wastewater was explored. In place of common support materials rice straw was employed as a support medium of trickling filter for pig farm wastewater treatment. The straw medium which was humified for 20 days after wastewater treatment and mixed with soil significantly enhanced in general the development of bunching lettuce grown under greenhouse conditions. Improvement of soil chemical properties in terms of fertility was also achieved by the addition of humified straw medium after wastewater treatment. It was found that rice straw served as a satisfactory support medium of trickling filters with the wastewater treatment concerning removals of biological oxygen demand, chemical oxygen demand, and suspended solids.
김정제,양재의,신영오,Kim, Jeong-Je,Yang, Jae-E,Shin, Young-Oh 한국토양비료학회 1996 한국토양비료학회지 Vol.29 No.1
시판(市販)되고 있는 유기질비료(有機質肥料) 17 가지를 수거(收去)하여 부식특성(腐植特性)을 조사(調査)하였다 유기질비료(有機質肥料)에 함유(含有) 되어있는 내용물(內容物)의 종류(種類)는 다양(多樣)하였다. 예(例)를 들면 어박(魚粕), 유박(油粕), 주정박(酒精粕), 세르코-D, 부식토(腐植土), 톱밥. 토양개량제(土壤改良劑), 나무 껍질, 돈분(豚糞), 계분(鷄糞), 우분(牛糞), zeolite, 골분(骨粉), 토룡분(土龍糞), 낙엽(落葉), 아미노산 발효(發酵) 부산물(副産物), 석회(石灰), 가축(家畜) 부산물(副産物), 농산(農産) 부산물(副産物) 등등이었다. 물리화학(物理化學) 및 분광학적(分光學的) 특성(特性)은 다음과 같았다. 1. 유기질비료(有機質肥料)의 비료가(肥料價)는 유기질비료종류(有機質肥料種類)에 따라 큰 차이(差異)가 있었다. 2. 내용물중(內容物中)에는 부식화(腐植化)가 완전(完全)히 이루어지지 않은 유기물(有機物)이 있는 경우(境遇)도 있었다. 이것은 높은 C/N값으로 나타났다. 3. 대체(大體)로 한 가지 시료(試料)에서 추출(抽出)되는 humic acid의 양(量)이 fulvic acid의 양(量) 보다 많았다. 4. 부식화(腐植化)의 진전(進展)에 따라 humin의 상대적(相對的)인 양(量)도 증가(增加)하였다. 5. Total acidity는 phenolic hydroxyl group과 밀접(密接)한 상관관계(相關關係)가 있었으며 carboxyl group은 hydroxyl group과 alcoholic hydroctyl group과 유의성(有意性) 있는 상관관계(相關關係)가 있었다. 6. Humic acid와 fulvic acid의 UV 및 visible light absorption spectrum은 거의 같은 모양이었다. 7. 추출(抽出)된 humic acid의 종류(種類)는 B, P 그리고 Rptype이었다. Humic acid 중(中) 2가지는 B type, 3가지는 P type, 그리고 나머지 12가지는 모두 Rp type에 속(屬)했다. Humic substances of 17 organic fertilizers available on the market were the objects of study. The list of ingredients for formulation of them comprised fish meal. bone meal, oil-cakes, brewer's grains, peat, sawdust, wood bark, zeolite, soil conditioner, live-stock droppings, amino acid fermentation byproduct, chaff, limestone and others. Humic and fulvic acids were isolated from those substances and given chemical and spectroscopic analyses. Nutritional values of the organic fertilizers showed big diversity. Humification of organic matter was incomplete for some of the fertilizers as indicated by a high C/N ratio. Extractable humic acid percentage was higher, in general, than that of fulvic acid. Also the relative content of humin increased with advanced humification. Total acidity was closely related to phenolic hydroxyl groups. Relationships between carboxyl and hydroxyl groups. and carboxyl and alcoholic hydroxyl groups were very significant. Ultraviolet and visible light absorption spectra of humic and fulvic acids were substantially similar. The types of humic acids were B. P, and Rp. Two humic acids of the 17 samples belonged to B type. 3 to P type and all the rest to Rp type.