거의 모든 IT의 역사

송인홍 한국농공학회 2021 韓國農工學會誌 : 전원과 자원 Vol.63 No.4

산림논복합 소유역에서의 비점부하 강우유출 특성 및 EMC 산정

송인홍,강문성,황순호,송정헌,Song, In-Hong,Kang, Moon-Seong,Hwang, Soon-Ho,Song, Jung-Hun 한국농공학회 2012 한국농공학회논문집 Vol.54 No.4

This study was aimed to characterize non-point source (NPS) pollutant runoff and estimate event mean concentrations (EMCs) from a small rural watershed located at the headwater area of the Gyeongan stream. The study watershed consists of the two major landuse, forest (72 %) and paddy field (28 %). The nine rainfall events ranging from 18.5 to 192.6 mm in amount were monitored in this study. Stream flow was measured at the watershed outlet using a water level gauge, while a number of water samples for each event were collected and analysed for water quality. Event pollutant loads varied greatly depending on rainfall events varying from 22.6 to 3,134.2 mg/L, 0.32 to 24.56 mg/L, 0.090 to 1.320 mg/L, and 2.3 to 149.8 mg/L for SS, TN, TP, and COD, correspondently. The respective mean EMCs were estimated by 104.2, 1.00, 0.168, and 7.9 mg/L. The Pearson correlation analysis showed that COD EMC was significantly correlated with those of SS, TN, and TP. Rainfall runoff ratio appeared to be negatively correlated with EMCs of SS, TP, and COD, although not statistically significant. The event loads from the largest rainfall was greater than the sum of those from the remaining eight events. The study results suggest that the appropriate management of intensified storm events are of greater importance in curbing NPS loads, while the estimated EMCs provide base data for the unit pollutant loads determination for the forest-paddy composite upstream watershed.

수질개선과 생태서식환경을 고려한 수변생태구역 너비 결정 방법 - 진위천 적용을 중심으로 -

송인홍,김익재,SONG, Inhong,KIMm, IkJae 한국농촌계획학회 2018 농촌계획 Vol.24 No.2

Riparian management has become important as stream water quality as well as riparian ecosystem gain more public attentions. The objective of this study was to determine riparian widths based on the functions of nutrient removal and wildlife habitat protection and to apply for the Jinwee stream area as a preliminary case. Nitrogen and phosphorus filtration efficiencies were considered in water quality aspect, while the habitat radii of amphibian and reptiles were used for wildlife conservation purpose. In addition, observation of endangered species and human impact on wildlife disturbance in riparian area were also taken into account in determining riparian widths. The stream confluence zone was emphasized by doubling the riparian widths as the focal point for wildlife habitat conservation. As the results, three different levels of riparian widths were proposed depending on the major riparian functions and applied to the Jinwee stream section as the case study. The proposed method can be used to determine riparian width in other stream areas based on different functional focus, ie, water quality or riparian conservation purposes.

Liver abscess caused by Streptococcus intermedius after a dental procedure: A Case Report

송인홍,정호연,이규훈,이형석,장성욱,이요셉,이랑 대한내과학회 2022 대한내과학회 추계학술대회 Vol.2022 No.2

Water Use Efficiency of Subsurface Drip Irrigation and Furrow Irrigation

송인홍,피터 월러,최연식,권순국,Song, In-Hong,Waller Peter. M.,Choi, C. Yeon-Sik,Kwun, Soon-Kuk The Korean Society of Agricultural Engineers 2007 한국농공학회논문집 Vol.49 No.2

The primary objective of this study was to compare water use efficiencies between subsurface drip irrigation and furrow irrigation. The uniformity of used drip lines was tested to determine if clogging would be a threat to the long-term success of a subsurface drip irrigation system. Three crops, cantaloupe, lettuce, and bell pepper, were grown in four plots for each irrigation system. Significantly less water was applied with subsurface drip irrigation than with furrow irrigation (29.5 % less for cantaloupe and 43.2 % less for bell poppet) in order to produce similar crop yields. Water use efficiencies with subsurface drip irrigation were significantly higher than those with furrow irrigation fur cantaloupe (P-value = 0.018) and bell pepper (P-value ${\leq}$ 0.001). Drip-irrigated lettuce, a shallow-rooted crop, had moderately higher water use efficiency during the first two seasons, while no difference was observed in the third season. After the experiment, the uniformity of the drip lines was 92.1 % on average and classified as good. The high values fur water use efficiency and uniformity indicate that subsurface drip irrigation can be a sustainable method for conserving irrigation water.

갈수기에 하구 담수호의 수질 대책 수립의 필요성

송인홍,성충현 한국농공학회 2016 韓國農工學會誌 : 전원과 자원 Vol.58 No.4

생태하천 복원방안에 관한 연구 : 시각적 하천생태 평가를 중심으로

송인홍,김익재 충북연구원 2011 지역정책연구 Vol.22 No.1

Streams and rivers have been essential resources in human history as known of being major origins of human civilization. As urbanization occurs rapidly along with economic growth, the surrounding water environment have been substantially degraded in terms of water quality and riparian and river ecosystem health. Recent public recognition to environmental quality calls for enormous attention to restoring or retrofitting degraded stream environment. Thus, central and local government initiated ecological stream restoration projects in late 1990s. In this study, we have visited 64 select streams including streams of ecological restoration project and natural reference streams and assessed their stream environments. Stream Visual Assessment Protocol(SVAP) developed by United States Department of Agriculture (USDA) Natural Resources Conservation Services (NRCS) was used to assess 10 different categories of stream environment including channel condition, hydrological status, riparian vegetation, water appearance, and flow diversity. Each of ten categories was scored from 1 to 10 and averaged to determine ecological status into one of four classification levels, ie, excellent, good, fair, and poor. Overall average score for the select streams was 6.9 which falls into "fair" classification. Among the environmental categories, the stream stability was scored the best while the barrier to fish migration was the worst. In riparian usage perspective, most of project streams lacked of stream ecological consideration by overly constructing waterfront facilities. It was recommended that the prior consideration in the stream restoration should be given to stream ecological health, especially to fish migration improvement and prudent design of waterfront facilities. Restoring stream hydrology(e.g., environmental or ecological flow) also needs to be premise of stream restoration since flowing water is part of definition of stream. -

농촌 소하천의 재폭기 계수 추정

송인홍 ( Song In Hong ),권순국 ( Kwun Soon Kuk ) 한국농공학회 2000 한국농공학회 학술대회초록집 Vol.2000 No.-

In this study, using modified tracer method(Constant Rate Injection, CRI method), reaeration rates were measured in the territories of Bokha stream. In case of Kwanri stream, reaeration rates of a diversion were measured simultaneously. Propane gas and Rhodamine-WT were used as gas and dye tracer, respectively. The experimental results show that reaeration rates of the stream were ranged from 6.16 to 24.52 1/day and those of a diversion in Kwanri stream were ranged from 28.39 to 123.61 1/day. It is resulted that mean velocity of stream is a dominant factor in reaeration process and diversion significantly influence on reareation process.

우리나라 농업기상재해의 공간 분포 및 지역 특성 분석

송인홍 ( Inhong Song ),송정헌 ( Jung Hun Song ),김상민 ( Sang Min Kim ),장민원 ( Min Won Jang ),강문성 ( Moon-seong Kang ) 한국농공학회 2012 한국농공학회논문집 Vol.54 No.6

Along with global warming, ever intensifying weather events have increased damages to agricultural farms and facilities. The objective of this study was to investigate the spatial distribution and regional characteristics of agricultural damages by extreme weather events. Agricultural disaster statistics provided by the National Emergency Management Agency were summed over for a 13-year period from 1998 to 2010 and used for the spatial analysis. Two indices of damage area ration and property damage per unit area were introduced to quantify regional agricultural damages. As the results, farm inundation accounted for the largest area primarily damaged by typhoons with heavy rainfalls. Most property damages to farm lands originated from farm erosion in the alpine regions by localized guerrilla rains. The two major causes of damages to greenhouse and livestock facilities were typhoon with strong wind and winter blizzards. Gangwon was the province of the largest property loss mostly from farm land erosion losses, followed by Gyeongnam, Jeonnam, and Chungnam where losses to greenhouse and livestock facilities were relatively greater. Property loss per unit area was also the greatest for the Gangwon province (4.91 M￦/ha), followed by Gyongnam and Chungnam of 2.20 and 1.50 M￦/ha, respectively. Unit loss for greenhouse and livestock facilities was 13.3 M￦/ha, approximately 13 times greater than that for farm land (1.06 M￦/ha). The study findings indicated the importance of reducing highland farm erosion and reinforcing farming facilities structures for agricultural disaster management.

퇴비 토지환원에 따른 미생물 위해성 평가 Framework 개발

송인홍 ( Inhong Song ),강문성 ( Moon-seong Kang ),안지현 ( Ji-hyun Ahn ),박지훈 ( Jihoon Park ) 한국농공학회 2012 한국농공학회 학술대회초록집 Vol.2012 No.-

Along with increasing interest in organic farming or environmental-friendly, land application of compost for crop production has been increased substantially. However, livestock manure based compost is a composite of myriad microbes of which some might be harmful to human being. Thus appropriate application guidelines need to be developed for safe compost use for agricultural purpose. The objective of this study is to develop a framework for the microbial risk assessment associated with compost farmland application. The procedure of the microbial process involves identification of potential hazardous microbes that may exist in compost, exposure assessment of farmer to pathogenic microbes, and application of dose-response relationship to derive application concentration. The concentrations of potentially pathogenic microorganisms in compost necessary to achieve a 1:10,000 annual risk of infection will be estimated to be proposed as the compost quality to be met for safe use and agricultural production. In this study, rice paddy farming which is the most prevailing practice in Korea was considered as the cultivation type. Typical rice farming practice was set into a scenario of which each process was evaluated in terms of microbial exposure and thus health effects on farmers. The whole assessment process was incorporated into the microbial risk assessment framework for the compost land application. The established framework will provide us a platform for microbial risk assessment in association with compost application for agricultural purposes.