• Title/Summary/Keyword: Agricultural district

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Development of An Agricultural Drought Evaluation Model for Administrative Decision Support (가뭄대책 행정지원을 위한 지역논가뭄평가모형 ADEM의 개발)

  • Jang, Min-Won;Chung, Ha-Woo;Park, Ki-Wook
    • Journal of Korean Society of Rural Planning
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    • v.9 no.2 s.19
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    • pp.29-37
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    • 2003
  • The objectives of this study are to develop an agricultural drought evaluation model based on administrative boundaries and to assist the effective drought-related decision-making of local governments. The model which was named ADEM(Administrative Drought Evaluation Model for Paddies) is designed to simulate daily water balance between available water quantities from various agricultural water facilities such as reservoirs, wells, pump stations, etc. and water requirements in paddies. And in order to numerically describe the agricultural drought severity, two indices were defined; One is ADFP(Agricultural Drought Frequency for Paddies) which is calculated with a frequency analysis of monthly water deficit, and the other is ADIP(Agricultural Drought Index for Paddies) with a scale of $-4.2{\sim}+4.2$. The developed model was applied to Yeoju district and showed good correspondence with the historical records of drought.

Comparison of Gayal (Bos frontalis) and Yunnan Yellow Cattle (Bos taurus): Rumen Function, Digestibilities and Nitrogen Balance during Feeding of Pelleted Lucerne (Medicago sativum)

  • Deng, Weidong;Wang, Liping;Ma, Songcheng;Jin, Bo;He, Tianbao;Yang, Zhifang;Mao, Huaming;Wanapat, Metha
    • Asian-Australasian Journal of Animal Sciences
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    • v.20 no.6
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    • pp.900-907
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    • 2007
  • Three male Gayal (Bos frontalis) and three male Yunnan Yellow cattle (Bos taurus) were fed pelleted lucerne and measurements made of digestibility, nitrogen utilisation, rumen fermentation and microbial population and key plasma metabolites. Total actual dry matter intake was similar but when expressed in terms of live weight or metabolic live weight feed intakes were significantly higher (p<0.05) for Gayal than cattle. Apparent digestibilities of dry matter, organic matter, fibre and dietary nitrogen were similar for both Gayal and cattle. Rumen ammonia nitrogen and total volatile fatty acids were significantly higher (p<0.05) for Gayal than cattle and total numbers of viable rumen bacteria, cellulolytic and amylolytic bacteria, but not proteolytic bacteria nor protozoa, were significantly greater (p<0.05) for Gayal than cattle. Although Gayal have a different rumen ecology to cattle, similar digestive parameters were exhibited. Further research is required to establish relationship between rumen ecology and digestive parameters.

GPS application for the digital map constrution of Irrigation Canal Networks (GPS를 이용한 농업용 수로조직의 수치지도 구축)

  • 최진용;윤광식;박희성
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 1998.10a
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    • pp.28-33
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    • 1998
  • GPS is a effective surveying instrument using satellite measurement system and can be applicable to digital map construction of irrigation canal networks. In this study, selected a main canal of a irrigation district and GPS surveyed. The obtained survey data was corrected with post-processed DGPS and imported to GIS for the digital map construction.

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Development of the Hydraulic Inspection Method for Irrigation Pipeline Systems (관수로 시스템 수리진단 기법 개발)

  • Kim, Young-Hwa;Park, Ji-Sung;Cheong, Byong-Ho
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2003.10a
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    • pp.251-254
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    • 2003
  • For improving the flow capacity of pipeline system the hydraulic inspection method was developed conducting on-site with survey of pipeline facility such as diversion work, air vent, etc. and pipe network analysis. The pipe network analysis method determine pipe diameter with trial and error. The validity of the hydraulic inspection method proved adapting on S-district pipeline system.

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Inflow Water into Saemangeum Area from Other Watershed (타 유역에서 새만금 유역으로 유입되는 수량 변화)

  • Choi, Jin-Kyu;Son, Jae-Gwon;Kim, Tai-Cheol
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2003.10a
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    • pp.543-546
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    • 2003
  • This study was carried out to survey the amount of inflow water from Geumgang reservoir, Yongdam dam and Sumjin dam into Saemangeum area, and to provide the basic data to use and manage the water resources of Saemangeum district effectively. The total volume of inflow water from the above hydraulic facilities was measured as $775.8{\times}10^6m^3$ in 2002.

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Central Function Analysis in the Saemangeum Area (새만금 주변지역의 중심기능 분석)

  • Choi, Soo-Myung;Kim, Hong-Gyun;Park, Yong-Jin
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2003.10a
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    • pp.115-118
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    • 2003
  • This study was carried out to analyse the central functions of district-load areas (Eup or Myon in Korea) in the neighbourhood zone of Saemankeum Reclamation Area. From the calculation results of their functional indices, only 4 areas were selected as the second-order centers, while remaining 12 areas as the third-order centers. (key villages)

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Development of the Information System for Management of Irrigation Facilities (농업수리시설물 관리를 위한 정보시스템 개발)

  • 고홍석;최진규;고남영;이주승
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 1999.10c
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    • pp.130-136
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    • 1999
  • The management method of the irrigation facilities are different with management agency , type, user, purpose of use, and the accuracy of data applied for the grasp of present situation and maintenance is of a low grade. Therefore the information management system is needed to classify and systematize the data. The purpose of this study is to prepare the digital map of Chonbuk FLIA district, to construct the database of the irrigation facilities , to develop the information system for the management using World Wide Web, to supply and be able to use easily to whomever needs it.

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