Assessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea

This study evaluated the contribution of small agricultural reservoirs (the mool-tongs) to crop production on Udo, and the role they play. Agricultural water demand and deficit, water storage in the mool-tongs, and the amount of irrigation water were analyzed by applying the water balance model. In...

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Autores principales:	Minseok Kang, Chulsang Yoo, Wooyoung Na
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	rainwater collection Blaney-Criddle water balance model Udo mool-tong Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/b76e06418ea24d8dadb952644db842ba
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spelling	oai:doaj.org-article:b76e06418ea24d8dadb952644db842ba2021-11-25T19:16:36ZAssessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea10.3390/w132232992073-4441https://doaj.org/article/b76e06418ea24d8dadb952644db842ba2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/22/3299https://doaj.org/toc/2073-4441This study evaluated the contribution of small agricultural reservoirs (the mool-tongs) to crop production on Udo, and the role they play. Agricultural water demand and deficit, water storage in the mool-tongs, and the amount of irrigation water were analyzed by applying the water balance model. In particular, the Blaney-Criddle method was used to estimate the agricultural water for crop growth. In this study, four typical crops of garlic, spring onion, peanut, and barley were considered, whose growing seasons were somewhat different from each other. A total of 47 years (1973–2019) of rainfall, temperature, and evaporation data were used in this study. As a result, it was confirmed that the crop coefficient, growing period of a crop, share of the cultivated area, and the seasonal distribution of rainfall affect the role of the mool-tongs. Comparison of the frequencies of occurrence of agricultural water deficit and irrigation interval before and after introducing the mool-tongs also confirms their usefulness. After the introduction of the mool-tongs for irrigation, the frequency of occurrence of agricultural water deficits changed significantly, from almost 30% of the entire simulation period to less than 20%. Even though the water supply capacity of the mool-tongs on Udo is insufficient to offset the entire agricultural water deficit, the water stored in the mool-tongs was found to considerably aid the survival of the crops and increase crop production. The results in this study can help to determine the capacity of rainwater collecting systems, especially on a small island where the available water resources are limited.Minseok KangChulsang YooWooyoung NaMDPI AGarticlerainwater collectionBlaney-Criddlewater balance modelUdomool-tongHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3299, p 3299 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rainwater collection Blaney-Criddle water balance model Udo mool-tong Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	rainwater collection Blaney-Criddle water balance model Udo mool-tong Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Minseok Kang Chulsang Yoo Wooyoung Na Assessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea
description	This study evaluated the contribution of small agricultural reservoirs (the mool-tongs) to crop production on Udo, and the role they play. Agricultural water demand and deficit, water storage in the mool-tongs, and the amount of irrigation water were analyzed by applying the water balance model. In particular, the Blaney-Criddle method was used to estimate the agricultural water for crop growth. In this study, four typical crops of garlic, spring onion, peanut, and barley were considered, whose growing seasons were somewhat different from each other. A total of 47 years (1973–2019) of rainfall, temperature, and evaporation data were used in this study. As a result, it was confirmed that the crop coefficient, growing period of a crop, share of the cultivated area, and the seasonal distribution of rainfall affect the role of the mool-tongs. Comparison of the frequencies of occurrence of agricultural water deficit and irrigation interval before and after introducing the mool-tongs also confirms their usefulness. After the introduction of the mool-tongs for irrigation, the frequency of occurrence of agricultural water deficits changed significantly, from almost 30% of the entire simulation period to less than 20%. Even though the water supply capacity of the mool-tongs on Udo is insufficient to offset the entire agricultural water deficit, the water stored in the mool-tongs was found to considerably aid the survival of the crops and increase crop production. The results in this study can help to determine the capacity of rainwater collecting systems, especially on a small island where the available water resources are limited.
format	article
author	Minseok Kang Chulsang Yoo Wooyoung Na
author_facet	Minseok Kang Chulsang Yoo Wooyoung Na
author_sort	Minseok Kang
title	Assessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea
title_short	Assessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea
title_full	Assessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea
title_fullStr	Assessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea
title_full_unstemmed	Assessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea
title_sort	assessment of the contribution of rainwater collection to crop production on udo island, korea
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b76e06418ea24d8dadb952644db842ba
work_keys_str_mv	AT minseokkang assessmentofthecontributionofrainwatercollectiontocropproductiononudoislandkorea AT chulsangyoo assessmentofthecontributionofrainwatercollectiontocropproductiononudoislandkorea AT wooyoungna assessmentofthecontributionofrainwatercollectiontocropproductiononudoislandkorea
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Assessment of the Contribution of Rainwater Collection to Crop Production on Udo Island, Korea

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