• Title/Summary/Keyword: 농업용

Search Result 2,290, Processing Time 0.032 seconds

Utilizing SPOT-5 Satellite Data for Present State Analysis of Irrigation Reservoirs of the Yeseong River Basin (예성강 유역의 저수지 현황 분석을 위한 SPOT-5 위성자료의 이용)

  • Lee, Jin-Duk;Lee, Byung-Hwan;Song, Young-Suk
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
    • /
    • v.28 no.2
    • /
    • pp.255-263
    • /
    • 2010
  • In order to prepare the interchange between and the unification of North and South Korea, it is needed to establish the development direction of irrigation reservoirs and formulate technological and political directions for preparing effectively against the demand of agricultural countermeasure information like the analysis of rural comprehensive development projects and the present state of agricultural land of North Korea. The purpose of this research is to construct the database of agricultural productive infrastructures and analyze the present state of irrigation reservoirs of the Yeseong River Basin in North Korea using SPOT-5 satellite imagery. As a result of the research, we were able to not only design classification items but establish method and precedure for producing thematic maps related agricultural productive infrastructure without on-site survey by analyzing present condition related to agricultural water of the basin. And we intend to provide basic data for analyzing suitabile locations of irrigation reservoirs in the basin by performing basin extraction, volume evaluation of the existing reservoirs, scale cultivative lands, benefit area fo the reservoirs, and the existing agricultural water system. In addition, we were able to understand the problem and limit in constructing the database related agricultural productive facilities.

새로운 품종 - 관상용 토마토 '톰하트'

  • Choe, Hak-Sun
    • 농업기술회보
    • /
    • v.51 no.4
    • /
    • pp.32-32
    • /
    • 2014
  • 최근 들어 토마토를 교육용 소재로 이용하거나 가정에서 재배하고 싶어 하는 사람들이 많아지고 있다. 그러나 기존에 개발된 품종들은 대부분 줄기가 무한정으로 자라면서 열매가 달리는 무한형 품종으로 가정이나 학교 교실에서 재해하기에는 관리상 어려움이 많다. 국립원예특작과학원에서는 좀 더 작고 쉽게 누구나 재배할 수 있도록 초형을 유한형의 왜성으로 개량하고 관상용 가치도 있으면서 식용으로 이용할 수 있는 토마토를 개발하였다.

  • PDF

Combined Effects of Groundwater Abstraction and Irrigation Reservoir on Streamflow (지하수 이용과 농업용 저수지가 하천유량에 미치는 복합 영향)

  • Kim, Nam Won;Lee, Jeongwoo;Chung, Il Moon;Lee, Min Ho
    • Journal of Korea Water Resources Association
    • /
    • v.46 no.7
    • /
    • pp.719-733
    • /
    • 2013
  • In this study, a watershed-based surface-water and groundwater integrated model, SWAT-MODFLOW was used to evaluate streamflow depletion induced by groundwater withdrawals and irrigation reservoirs for the Juksan-cheon watershed in South Korea. The streamflow responses to groundwater pumping and irrigation reservoirs were simulated under several different scenarios. The scenarios were (1) current pumping well withdrawals with reservoirs; (2) current pumping well withdrawals without reservoirs; (3) no pumping well withdrawals with reservoirs; (4) no pumping well withdrawals without reservoirs (natural condition). The simulated results indicated that the effects of groundwater pumping on streamflow depletion are a little more significant than those of irrigation reservoirs. Particularly, the groundwater withdrawals with irrigation reservoirs at current status (scenario 1) has induced the decrease of more than 20% in drought flow against the natural condition (scenario 4) at the outlet of the watershed. The specific drought flows through the main stream of Juksan-cheon watershed were simulated in order to assess the irrigation effects on downstream flows. It was found out that the specific drought flows are increasing as the distance from the reservoir increases due to the accumulation of the return flows to stream.