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2023 Vol.65, Issue 1 Preview Page
Spatio-Temporal Variations of Paddy and Water Salinity of Gunnae Reclaimed Tidelands in Western Coastal Area of Korea

서해안 군내간척지 담수호 및 농경지 염류의 시공간적 분포 특성 분석

Jina Beoma
,
Minhyuk Jeunga
,
Hyun-Jin Parkb
,
Woo-Jung Choic
,
YeongJoo Kimd
,
Kwang Sik Yoone†
범 진아a
,
정 민혁a
,
박 현진b
,
최 우정c
,
김 영주d
,
윤 광식e†
aPh.D. Student, Department of Rural and Bio-systems Engineering & Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University
bResearch Professor, Department of Rural and Bio-systems Engineering & AgriBio Institute of Climate Change Management Chonnam National University
cProfessor, Department of Rural and Bio-systems Engineering & Education and Reserch Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University
dProfessor, Department of Cadastre and Civil Engineering, VISION College of Jeonju
eProfessor, Department of Rural and Bio-systems Engineering & Education and Reserch Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University
a전남대학교 기후-스마트 간척-조지농업(BK214) 농촌 및 바이오시스템공학과 교육연구팀 박사과정 학생
b전남대학교 농생명공학부 기후변화관리연구소 연구교수
c전남대학교 기후-스마트 간척-조지농업(BK214) 농촌 및 바이오시스템공학부 교수
d전주비전대학 지적토목공학과 교수
e전남대학교 기후-스마트 간척-조지농업(BK214) 농촌 및 바이오시스템공학부 교수
† Corresponding author Tel.: +82-62-530-0156, Fax: +82-62-530-2159 E-mail: ksyoon@jnu.ac.kr
2023. pp. 73-81
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Abstract

To understand salinity status of fresh water and paddy soils and the susceptibility of rice to salinity stress of Gunnae reclaimed tidelands, salinity monitoring was conducted in rainy and dry seasons. For fresh water, a high salinity was observed at the sampling location near the sluice gate and decreased with distance from the gate. This spatial pattern of fresh water salinity indicates the necessity of spatial distribution of salinity in the assessment of salinity status of fresh water. Interestingly, there was significant correlation between rainfall amount and salinity, implying that salinity of fresh water varies with rainfall and thus it may be possible to predict salinity of water using rainfall. Soil salinity also higher near the gate, reflecting the influence of high saline water. In addition, the groundwater salinity also high to threat rice growth. Though soil salinity status indicated low possibility of sodium injury, there was changes in soil salinity status during the course of rice growth, suggesting that more intensive monitoring of soil salinity may be necessary for soil salinity assessment. Our study suggests the necessity of intensive salinity monitoring to understand the spatio-temporal variations of salinity of water and soil of reclaimed tideland areas.

Keywords
Groundwater
reclaimed tideland paddy
rice paddy soils
salinity monitoring
surface water
References

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Information
  • Publisher :The Korean Society of Agricultural Engineers
  • Publisher(Ko) :한국농공학회
  • Journal Title :Journal of Korean Society of Agricultural Engineers
  • Journal Title(Ko) :한국농공학회논문집
  • Volume : 65
  • No :1
  • Pages :73-81
  • Received Date : 2022-09-06
  • Revised Date : 2022-11-21
  • Accepted Date : 2022-11-21
  • DOI :https://doi.org/10.5389/KSAE.2023.65.1.073
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