A Study on the Appropriate Size of Large Rainwater Utilizing Facilities and Estimation of Agricultural Water Availability in Namwon eup,  Jeju Island

Minchul Kim; Wonbae Park; Bongrae Kang

doi:10.7857/JSGE.2020.25.1.084

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A Study on the Appropriate Size of Large Rainwater Utilizing Facilities and Estimation of Agricultural Water Availability in Namwon eup, Jeju Island 제주도 남원읍지역 대용량 빗물이용시설의 적정규모 및 농업용수 공급 가능량 산정 연구

31 March 2020. pp. 84-94

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Abstract

Jeju Island is seeking reliable ways to secure alternative water resources using rainwater in order to conserve and manage its groundwater as sustainable water resources. The purpose of this study is to investigate the rainwater storage capability of small-size storage facilities installed at farmhouses in Uigwi and Wimi of Namwon-eup region. The rainwater outflows from the storage facilities in rain events were analyzed. The appropriate size of rainwater utilizing facilities are suggested to be about 5,800 m³ in Uigwi area and 4,900 m³ in Wimi area based on the calculation from the rainfall frequency and runoff amounts. If those facilities are put into operation in Uigwi and Wimi area, it is estimated approximately 32.3 and 11.5% of total agricultural water can be supplied by the facilities. Wimi area showed low rainwater usage because of less number of facilities relative to the size of farm areas and less intensive underground water usage. It is analyzed that more than 55% of agricultural water can be supplied by rainwater if 70 facilities without the rainwater facilities are connected to the rainwater utilizing facilities.

Keywords

Jeju Island

Groundwater

Alternative water resources

Greenhouse

Rainwater utilizing facilities

References

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Information

Publisher :The Korean Society of Soil and Groundwater Environment
Publisher(Ko) :한국지하수토양환경학회
Journal Title :Journal of Soil and Groundwater Environment
Journal Title(Ko) :지하수토양환경
Volume : 25
No :1
Pages :84-94
Received Date : 2020-02-07
Revised Date : 2020-02-18
Accepted Date : 2020-03-20
DOI :https://doi.org/10.7857/JSGE.2020.25.1.084

Journal of Soil and Groundwater Environment ISSN:1598-6438(Print) 2287-8831(Online) 지하수토양환경

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