• Title/Summary/Keyword: Tideland reclamation

Search Result 33, Processing Time 0.025 seconds

Tideland Reclamation Projects and Establishment of Technology (해면 간척 사업과 기술의 정립)

  • 정두희
    • Journal of the Korean Professional Engineers Association
    • /
    • v.28 no.4
    • /
    • pp.21-32
    • /
    • 1995
  • Tideland Reclamation Projects, which have played a significant role in selfsuffficieny of food in Korea, are being greatly restricted nowadays in their implementation due to their demands of big amount of construction costs and their severe malfunctioning of contaminat-ing the marine environment. Under the situation, this paper was prepared not only to stimulate the Government to continue the imlementation of new tideland reclamation projects, but also to contribute to the development of tideland reclamation technology by which the construction costs and rnalfunctionings could be minimized. Eventhough, the functioning of filters is considered to be important for the safety of seadikes, their planning and design are being made unreasonably In view point of construc-tion cost and strutural safety. Therefore, a reliable planning and design method for filters is presented in this paper on the basis of filter theory. In this way, we professional engineers corncerned should endeavor to develop more ad-vanced technology, by which the Government would implement the tideland reclamation projects continuously to supply the land and water more steadily in time.

  • PDF

Recommendation in the Direction of Tideland Reclamation in Korea (우리나라 간척개발 추진방안 제언)

  • 구본충
    • Journal of the Korean Professional Engineers Association
    • /
    • v.33 no.4
    • /
    • pp.68-71
    • /
    • 2000
  • Tideland reclamation in Korea has significant meanings both in securing the staple food supply and in enlarging the limited land resources. Environmentally, that significantly contributes in protecting the sea and the tidelands connected to a reclaimed area from the direct exposure to the environmental destruction by filtering the large volume of contaminant discharged from the inland. Furthermore, within few years after closing a sea dike. formulation of new tideland begins in wide area in front. Therefore, tideland reclamation should not be the one that must be unconditionally objected. Instead, the methodology should be wisely redirected to minimize the environmental disorder. It will be one viable alternative to proceed the tideland reclamation at medium- to small-scales environment-friendly bringing minimal environmental change in the sea.

  • PDF

Comprehensive Tideland Reclamation in Korea and Transferbility of Its Development Strategies and Techniques to Developing Countries

  • 최수명
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.34 no.E
    • /
    • pp.20-29
    • /
    • 1992
  • In 1980 the Ministrv of Agriculture, Forestry and Fisheies(MAFF) established the Long-term Tideland Development Scheme in the South-west Seashore Region. Since that time Korea has been developing comprehensive and innovative development frmaeworks in reclamation works and levelling up the potentialities of the donating country of internatioal cooperation in that field. And also, Korea has the well-organized governmental institutions for international cooperation in the development of tideland reclamation technologies such as RDC(Rural Development Corporation) for the field of agricultural engineering and RDA(Rural Development Administration) for the field of agricultural development. In Conclusion, it is ascertained that Korea has a good potentiality of aiding developing countries in the development of tideland reclamation, especially in agricultural development.

  • PDF

Analysis of Desalinization Effects ofn Gypsum Treatments in Reclaimed Tidelands (석고처리에 의한 간척지토양의 제염효과 분석)

  • 구자웅;최진규;손재권;이기성
    • Proceedings of the Korean Society of Agricultural Engineers Conference
    • /
    • 1999.10c
    • /
    • pp.162-168
    • /
    • 1999
  • This study was performed to analyze dealinization effects on gypsum treatments in reclaimed tidelands and to obtain the basci data for developing prediction techniques f desalinization to be applicable in the begining of tideland reclamation. In this study , the reclamation experiments with 4 treatments were conducted through the leachig method, using the samples of silt soil and silt loam soil collected in 5 units of tideland reclamation projects. The electrical conductivity , exchangeable sodium percentage and hydraulic conductivity were analyzed in order to investigate the effects of desalinizatino for reclaiming the tidelands with high salt concentration.

  • PDF

Investigation on Tideland Reclamation Projects in North Korea using Satellite Image Data (인공위성 화상자료를 이용한 북한의 간척자원 조사)

  • 조병진;이지근;안기원
    • Proceedings of the Korean Society of Agricultural Engineers Conference
    • /
    • 1999.10c
    • /
    • pp.175-180
    • /
    • 1999
  • The purpose of this study is to investigate on tideland recalamation project as a part of situation on farm land improvement measures in North Korea. By using satelite image data beyond the national boundaries, it makes possbile to analyze tideland reclamation projects, and owing to the developed software and procedure we can analyze data regardless of difference in data acquistion date. Satellite image data LANDSAT JEARS-1 data are mainly used, and analyzing software ER Mapper, ERDAS , IDRISI are used . Reclamation survey result made by the ministry of unification in 1994 were examined by means of remote sensing using satellite image data. The results are ; Completed and/or partly completed project are 24, 596ha and planned are about 142, 223 ha, 166, 819 ha in total. However, they already reported about 300 thousand ha would be reclamined from the sea in early 1980.

  • PDF

Soil Characteristics and Soil Salinity Changes in the Reclaimed Tideland of Korea (간척지 토양특성과 토양염류도 변화 개관)

  • Lee, Seung-Heon
    • Korean Journal of Soil Science and Fertilizer
    • /
    • v.42 no.spc
    • /
    • pp.14-19
    • /
    • 2009
  • To obtain the basic data on reclaimed tideland soils, 90 soil samples were collected from 9 tideland reclamation project areas in Korea. The soils consisted of clay (2.0 to 35.0 percents), silt (2.0 to 80.0 percents), and sand (8.0 to 95.0 percents), and were dominantly classified sandy loam and silty loam. The soils had pH of 4.5 to 9.1, organic matter of 0.50 to $19.20g\;kg^{-1}$, total nitrogen of 4 to $1,159mg\;kg^{-1}$, and avaliable phosphorus (as $P2_O_5$) of 3.5 to $147.7mg\;kg^{-1}$. The electrical conductivity in soil saturation-paste extracts (ECe) ranged between $0.62dS\;m^{-1}$ and $31.60dS\;m^{-1}$ and the concentrations of sodium and magnesium ions were higher than those of potassium and calcium ions. The magnitude of the ECe was as low as that of normal level in Nam-Po, Pu-Sa, and Kye-Hwa reclamation project areas having sandy loam texture, but was as high as that of normal level saline-sodic level in Nam-Yang and So-Po reclamation project areas having silty loam texture even though the soils were cultivated more than 10 years as a paddy. Some part of Saemangeum area was surveyed and soil textures were various; some were silt loam and some were sandy loam. The ECe values were very high in topsoil and subsoil.