• 한국수자원학회논문집
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• 제42권10호
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• pp.825-843
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• 2009

농업가뭄에 대한 대책 마련을 위해서는 가뭄기간 동안의 농업용 수리시설에 의한 용수공급 가능량의 파악이 매우 중요하다. 본 연구에서는 네트워크 물수지 모형인 MODSIM을 이용하여 농업용 수리시설을 고려한 물수지 네트워크를 구성하고 36개년(1967-2002) 동안의 물수지 분석을 수행하여 농업용수 공급측면의 가뭄을 평가하였다. 분석 결과, 과거 가뭄발생 기간에 농업용수 부족량이 다른 기간에 비해 많이 발생함을 확인할 수 있었으며, 대표적인 가뭄 년인 1994, 1995, 2001년의 부족량은 745.8백만 m$^3$, 661.1백만 m$^3$, 696.8백만 m$^3$으로 분석되었다. 또한 소유역 평균 용수공급 가능량은 생 공용수의 경우 99.1 %, 농업용수의 경우 84.4 %로 비교적 낮은 공급 가능율을 보였으며, 1994, 1995, 2001년의 농업용수공급 가능량은 74.8 %, 79.2 %, 77.9 %로 소유역 평균보다 낮은 수준으로 분석되었다. 농업용 수리시설물의 기여도 평가를 수행한 결과 양수장과 보의 기여율은 32.5 %, 집수암거와 관정의 기여율은 4.0 %로 분석되었으며, 집수암거와 관정은 양수장과 보에 비해서 상당히 적은 기여율을 갖지만 농업가뭄 해소에 어느 정도 도움을 주는 것으로 분석되었다.

• 한국조경학회지
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• 제46권4호
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• pp.76-83
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• 2018

본 연구는 2007년부터 2016년까지 최근 10년 동안 조경기사 필기시험 응시자 및 합격자 현황, 조경시공구조 및 조경관리학 출제유형별 빈도와 추이, 유형별 출제경향과 특성을 분석하여 조경기사 필기시험 중 조경시공구조 및 조경관리학 분야의 출제경향을 파악하고자 하였으며, 그 결과는 다음과 같다. 2007년부터 2016년까지 최근 10년 동안 조경기사 필기시험 응시자 및 합격자 현황을 분석해 본 결과, 응시자는 2011년부터, 합격자는 2012년부터 줄어들고 있으며, 최근 10년 동안 조경기사 필기시험의 평균 합격률은 11.2%를 나타냈다. 조경시공구조학 기출문제에 출제된 유형별 빈도와 추이, 출제경향과 특성을 분석해 본 결과, 시공계획 및 공정관리, 조경재료, 조경식재기반, 공종별 공사, 조경적산, 기본구조역학, 측량 등 7개 항목의 키워드 중 공종별 공사를 묻는 문항이 25.2%로 가장 많았으나, 조경식재기반시설에 대한 문제는 3.3%를 차지, 타 항목보다 출제빈도가 낮아 중요성에 비해 출제빈도가 낮은 것으로 파악되었다. 조경관리론 기출문제에 출제된 유형별 빈도와 추이, 출제경향과 특성을 분석해 본 결과, 운영 및 이용 유지관리, 전정관리, 시비관리, 잡초관리, 관수 및 배수관리, 월동관리, 병해충관리, 잔디관리, 조경시설관리 등 9개 항목의 키워드 중 운영 및 이용 유지관리를 묻는 문항이 37.2%로 가장 많았으며, 시비관리와 관수 및 배수관리는 2011년부터 조경시설관리 중 수경시설관리는 2015년부터 증가 추세에 있는 것으로 파악되었다. 이상에서 조경시공구조 및 조경관리론의 출제 경향을 살펴본 결과, 광범위하고 다양한 항목들이 출제되고 있으며, 조경시공구조에서는 합리적인 가격과 우수한 품질을 확보하기 위해 공종별 공사, 조경재료, 조경적산분야, 조경관리학에서는 기후변화 등의 환경적 요인들로 인하여 시비관리, 관수 및 배수, 조경시설관리 중 수경시설관리 등에서 출제빈도가 높아지고 있는 실정이다.

• 한국농공학회논문집
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• 제60권2호
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• pp.103-110
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• 2018

Most of the intake facilities of small agricultural reservoirs are conduits and they are regarded as serious defects due to the structural weakness that penetrates the body of the dam, and countermeasures are needed. This study suggests the application method of siphon type water intake facility by hydraulic model test and physical scale model test of siphon type water intake facility which has high safety and easy maintenance. Experimental results show that sufficient flow rate can be secured for the purpose of intaking water according to the differential head between the reservoir and the discharge part, and the flow rate can be controlled by the valve. The negative pressure was -31.5 kPa, and vibration and noise did not occur during the operation of the siphon. The maximum flow velocity in the discharge outlet was 1.11 m/s which meets the criterion for irrigation canals. Therefore, scour risk would be very low. As a result of the inflow distribution experiment, even if the inflow part is separated by only about 0.8 m, the flow velocity is remarkably decreased, so that the clogging by debris would not appear. When the pump was operated only once for the first time and the inside of the siphon was filled with water, continuous operation was possible by only valve operation. The results of this study are expected to be used for the design guidelines of the water intake facilities and improve safety and maintenance convenience of agricultural reservoirs.

• 한국관개배수논문집
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• 제17권2호
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• pp.82-94
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• 2010

Recently, biomass application for energy is getting more interests from many countries since biomass is widely available over the nation wide, whereas fossil fuels are produced in several limited regions. Recognizing the importance, government is promoting renewable energy use in Korea. The locational characteristics of the existing biomass potential directly can be used to decide scale of power plant for local agricultural facility. Although there are a few studies on feasible biomass potential in local areas, it is expected that both government and commercial sectors recognize the potential of biomass energy and the importance of reducing greenhouse gases. When planning biomass energy systems, biomass price is determined by the costs of collection, transportation, chipping, drying if required. In this paper investigates the economic and spatial characteristic of biomass location by land use map. However typical area of each categories in local region is not correct to agricultural census data. Therefore we concerned about how to calculate feasible biomass potential which it can be describing total amount of plant scale, and to match both of data. Even though its spatial distribution, in rural area in Korea, to expand biomass energy programs in the area, government serve to find areas of higher biomass production with suitable locations for plants to convert to bio-energy in order to increase the usage of renewable energy.

• 아시안잔디학회지
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• 제23권1호
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• pp.9-22
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• 2009

본 연구는 전 세계적으로 물 부족 현상으로 인한 물의 사용에 대한 관심이 증가함에 따라 네 종류의 난지형 잔디에 각기 다른 비율의 적자란수를 함으로써 식물의 생리학적인 반응, 즉 시각적 품질, 잎의 물 함량, 엽록소 함량, 광합성, 물 이용효율 등이 어떤 반응을 보이는지를 이해하고 그에 따른 상관관계를 분석 해보고자 했다. 결론적으로 20% 정도 적자 관수를 했을 때 식물은 약간의 스트레스를 받는 상태에서도 적자 관수를 하지 않은 식물과 비교했을 때 광합성량의 차이가 없었으며 가장 이상적인 생리학적인 반응을 보였다. 뿌리 발육 부분에 있어서도 적자관수를 통한 건조스트레스는 깊은 뿌리 생육을 촉진하는 관리방법으로 적용되었다. 다음 연구는 잔디가 각기 다른 토양 수분상태에서 일정하게 유지되었을때 지상부와 지하부의 생육에 따른 생리학적인 반응에 대한 연구로 확대되어야 할 것이다.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2006년도 춘계 학술발표회 논문집(II)
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• pp.261-264
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• 2006

Recently, the environment problems are risen to social problems. People have requested the convenience of a human activity and the enhancement of a human quality. The facility was, however, emphasized on the acquisition and treatment of water with the construction and maintenance of a irrigation and drainage structure. The concept of an environmental friendship has been introduced to change our society structure to an environment friendship at 21th century. But the concept lacks theoretical and systematic foundation. So, The maintenance technique, concrete products and construction methods will be made to be an environment friendship. The standards for environment friendship will be presented.

• 한국농공학회:학술대회논문집
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• 한국농공학회 2005년도 학술발표논문집
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• pp.193-198
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• 2005

The solar energy floodgate which discusses will minimize a quotient bringing up for discussion friction resistance and it will do to write a disturbance power, with the base which will reach it will be able to use the solar power unit in order. It is a plan which to magnification supply the practicality and will give proof will the effort with the irrigation facility of the farming village. Magnification supply of the solar energy floodgate which it sees hazard the stack supervisor and the possibility the use against the farmer and the easy frost does the monitoring against and the work which it complements is necessary.

• 한국농공학회논문집
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• 제60권3호
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• pp.1-13
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• 2018

Recently, the frequency and intensity of drought have been increasing due to the sudden abnormal climate in Korea. The occurrence of agricultural drought has been steadily increasing from 5 times in the 1980s to 2000s in 20 years, 6 times in the 10 years from 2000 to 2010, and 4 times in the recent period from 2011 to 2015. Therefore, this study analyzed the effect of water shortage caused by drought by improving the function of agricultural reservoir. The target area analyzed the data such as "Comprehensive Information System for Rural Water" operated by Korea Rural Community Corporation. As a result, we selected the target area as Wanju - gun, Jeollabuk - do in consideration of the rate of water storage compared with the normal 25 years, the completion year of the facility, the area of coverage per reservoir site and the low capacity. As a result of evaluating the improvement effect of agricultural facilities, it was analyzed that the irrigation area increased by about 25.7% when the water level was increased by 1m and the irrigation area increased by about 51.3% when the water level was increased by 2m. The results of the drought impact assessment after improving the function of the agricultural facilities were analyzed that it was effective to improve the function after more than 4m depth.

• 농촌계획
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• 제26권3호
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• pp.39-47
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• 2020

While agricultural water has been declared free in Korea to ensure access to these limited resource since the year 2000, farmers have however developed lackadaisical behavior towards water saving leading to its scarcity. To overcome this problem, a variety of experience-oriented education model was developed for farmers to promote the adoption of water conservation, and preventive measure against the drought impacts. In this study, farmers' awareness and their attitudinal behavior of agricultural water savings were investigated. The monitoring of water supply structure and the repair facilities in Pohang and Yeongdeok areas were conducted. The field visits and behavioral surveys showed a high degree of over-use and illegal water withdrawals by the farmers due to poor water-saving and management practices. We found that most of the KRC employees strongly admitted the necessity of water-saving education. On the other hand, the farmers showed good interest in the implementation of water-saving awareness through education. Besides this, most farmers agreed to adopt water-saving practices in the fields. Farmers also acknowledged the recklessness of water use was due to the aging of waterways, poor water management, and illegal water consumption. The majority of the farmers responded against imposing the water-use tariffs. However, there was a low response to paying the water-use charge. Aging agricultural facilities and the lack of institutional penalties or incentives were the major obstacles in achieving efficient water-saving. Considering the current drought frequency, urgent water-saving education of farmers was deemed necessary to prepare the farming community against the water shortages. Based on the results of this study, we have to identify the irrigation practices of farmers and provide water-saving education to enforce more efficient use and management of agricultural water.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2016년도 학술발표회
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• pp.194-194
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• 2016

Gansu, located in the northwestern region, is a typical agricultural province of arid, semiarid in China. The shortage of water resources is the biggest obstacle of Gansu Province's development, and the dry farming water-saving is the eternal theme of Gansu agricultural sustainable development. In recent years, intensify reform in Gansu, has walked out a successful way in the agricultural water-saving. Using the integrated river basin governance as opportunity, the total water-using quantity was regarded as rigidity to retrain, distributed to counties (districts), irrigated areas, towns, associations, groups step by step. Agricultural water price was substantially increased, with the surface water price from about $0.1RMB/m^3$ to more than $0.2 RMB/m^3$, and the ground water from zero to more than $0.1RMB/m^3$. Simultaneously, the difference water prices and over-quota water progression price markup were carried out. The transaction of water rights was encouraged to impel the peasant to establish the consciousness of saving-water. The regulatory documents were formulated to standardize the scope, condition, mode, program etc. of agriculture water-rights transaction, to guarantees the transaction of water rights is carries out in order. The pattern of farming was optimized and adjusted, reducing the high water-consumption crop, increasing economic crops with high benefit and low water-consumption, developing industrialized agricultures such as green house. The relative engineering and measuring facility were comprehensively improved, with the anti-seepage of canal system and the enforcement of dynamo-electric well, developing high-efficient water-saving irrigation and overall metering facilities. The water fine-grained management has realized, and obvious water-saving effect has obtained: water-using rate in the irrigation area by river water has brought up to 0.57 from 0.52, and by well water up to 0.84 from 0.76. Although the water price has increased, the proportion that the water rate expenditure accounted for the cost lasts decline, and the farmers' income has gone up. The peasants express, the used water is few, and it is few to till land, but the income is many, and life is better.