Estimation of design water requirement using FAO Penman–Monteith and optimal probability distribution function in South Korea

Yoo, Seung‐Hwan; Choi, Jin‐Yong; Jang, Min-Won

doi:10.1016/j.agwat.2008.02.010

Cited by 42 publications

(29 citation statements)

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“…Se aplicó la metodología recomendada por la FAO de Penman-Monteith (Arteaga et al, 2011;Yoo et al, 2008), mediante la aplicación del software CROPWAT (FAO, 2013, Stancalie et al, 2010 para Windows Versión 8.0, para la determinación de los …”

Section: Materials Y Métodosunclassified

“…Indicando que a mayor disponibilidad de agua mayor será el volumen de áreas ocupadas para la agricultura; el gráfico muestra una correlación del recurso hídrico y las áreas ocupadas por las cédulas de cultivo (Fig. 3).Se empleó el modelo CROPWAT (Yoo et al, 2008;Stancalie et al, 2010; FAO, 2013) para la simulación en la programación de riego durante el año hídrico 2014-2015, se analizó los efectos que sufrirían en los diversos escenarios de cambio climático y la disponibilidad hídrica, con lo que se podría predecir la reducción en rendimiento o producción de los cultivos en estudio. El cultivo de Z. mays "maíz" (Fig.…”

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Disponibilidad hídrica y predicción del rendimiento de Zea mays L. (Poaceae) “maíz” y Asparagus officinalis L. (Asparagaceae) “espárrago” en el valle Jequetepeque, Perú

Padilla

Marlene²

2017

Arnaldoa

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Guerrero: Disponibilidad hídrica y predicción del rendimiento Zea mays (Poaceae) y Asparagus officinalis (Asparagaceae) en el valle Jequetepeque ResumenEl presente estudio tuvo por objetivo principal evaluar la disponibilidad hídrica y determinar predicción del rendimiento de Zea mays L. (Poaceae) "maíz" y Asparagus officinalis L. (Asparagaceae) "espárrago" mediante modelo de simulación CROPWAT en el valle Jequetepeque, Perú. Se aplicó la metodología recomendada por la FAO de Penman-Monteith mediante la aplicación del software CROPWAT para la determinación de los requerimientos hídricos de Z. mays y A. offficinalis. El cultivo de Z. mays "maíz" demandó una mayor cantidad de agua porque dispone de una fase crítica durante la pre-y postfloración, por evaporación del cultivo (ETa) y evapotranspiración del cultivo (ETc) con un requerimiento de riego desde enero a marzo. A. officinalis "espárrago" presentó requerimiento de riego por baja retención de agua en el suelo (ETa) y por pérdida de agua por evapotranspiración (ETc) desde la segunda semana de octubre hasta enero. La disponibilidad hídrica y el área agrícola desarrollada tuvo un coeficiente R de Pearson de 0,7957 y un valor de P = 0.002, indicando una relación estadística altamente significativa.Palabras clave: Zea mays, Asparagus officinalis, valle Jequetepeque. AbstractThe main objective of this research was to evaluate water availability and determine yield prediction of Zea mays L. (Poaceae) "corn" and Asparagus officinalis L. (Asparagaceae) "asparagus" through CROPWAT simulation model in Jequetepeque Valley, Peru. We applied the methodology of Penman-Monteith recommended by the FAO through the application of CROPWAT software for determining the water requirement of Z. mays and A. officinalis. The cultivation of Z. mays "corn" demanded a greater amount of water because it has a critical phase in pre-and post-flowering, due to cultivation evaporation (ETa) and cultivation evapotranspiration (ETc) with an irrigation requirement from January to March. A. officinalis "asparagus" showed irrigation requirement for low retention of water in the soil (ETa) and water loss by evapotranspiration (ETc) from the second week of October to January. Water availability and developed agricultural area had a Pearson's R coefficient of 0.7957 and a P value of 0.002, indicating a highly significant statistical relation. Keywords: Zea mays, Asparagus officinalis, Jequetepeque Valley.Recibido: 20-I-2017; Aceptado: 15-III-2017; Publicado: VI-2017; Edición online: 05-VI-2017 IntroducciónLos métodos de riegos ineficientes o dispendiosos entrañan sus propios riesgos para la salud: el anegamiento de algunas zonas del Asia meridional, resultado de la utilización excesiva del agua para riego, es el determinante fundamental de la transmisión de la malaria, situación que se reitera en muchas otras partes del mundo. En otras zonas, la extracción de agua ha tenido consecuencias devastadoras sobre el medio ambiente. La capa freática de muchas regiones del mundo se reduce constantemente ...

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Section: Materials Y Métodosunclassified

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Disponibilidad hídrica y predicción del rendimiento de Zea mays L. (Poaceae) “maíz” y Asparagus officinalis L. (Asparagaceae) “espárrago” en el valle Jequetepeque, Perú

Padilla

Marlene²

2017

Arnaldoa

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“…The water requirement during transplantation was set at 140 mm and the deep percolation was collectively set at 4.0 mm/day, as suggested by Lee [18]. The desirable ponding depth changes with the growth period of paddy rice and appropriate values were taken from Jang et al as shown in Table 3 [17]. The maximum ponding depth was limited to 60 mm/day to predict the daily paddy water requirements.…”

Section: Paddy Water Requirement Calculations Using the Water Balancementioning

confidence: 99%

“…This study applied the same cropping system throughout the entire region and selected the irrigation period from 21 May (the start of the transplantation period) to 30 September. Precipitation <5.0 mm/day was deemed as interception loss and the actual crop evapotranspiration was calculated by taking the reference evapotranspiration, calculated using the FAO (Food and Agriculture Organization of the United Nations) Penman-Monteith equation, and multiplying it by the crop coefficient in the Table 2 [17]. The water requirement during transplantation was set at 140 mm and the deep percolation was collectively set at 4.0 mm/day, as suggested by Lee [18].…”

Section: Paddy Water Requirement Calculations Using the Water Balancementioning

confidence: 99%

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Assessing Sensitivity of Paddy Rice to Climate Change in South Korea

Kim

Bae

Kim

et al. 2016

Water

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Paddy rice constitutes a staple crop in Korea. This study conducted sensitivity analysis to evaluate the vulnerability of paddy rice to future climate change, and compared temporal and regional characteristics to classify regions with unfavorable water balances. Rainfall Effectiveness Index for Paddy fields (REIP), the ratio of effective rainfall and consumptive use, was used as a sensitivity index. Weather data from 1971 to 2010 and future climate change scenarios Representative Concentration Pathways (RCP) 4.5 and 8.5 were used to evaluate the sensitivity. Results showed an overall increase in water requirements and consumptive use. The REIP values were small for every period, except the 2040s, 2060s, and 2080s under scenario RCP 4.5, and the 2040s and 2080s under scenario RCP 8.5. Both climate change scenarios showed high sensitivity in regions Jeollabuk-do, Jeollanam-do, and Gyeongnam-do. However, regions Gyeonggi-do, Gangwon-do, and Chungcheongbuk-do had low sensitivity compared to other regions. The REIPs were used to categorize sensitivity into four types: low consumption-water rich, low consumption-water poor, high consumption-water rich, and high consumption-water poor. The Gangwon-do region had the highest number of regions that changed from the low consumption-water rich category to the high consumption-water poor category, making it a priority for measures to improve its adaptive capacity for climate change.

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Regional Analysis of Virtual Water Flow in View of Crop Consumption

Kim

Lee

Itsubo

et al. 2016

Irrigation and Drainage

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It is important to identify virtual water for crop production (Pvw) and consumption (Cvw) and to analyse the virtual water flow among regions for a better understanding of water resource use. The estimation of virtual water flow in a basin or between regions of a basin can contribute to finding options for water‐saving strategies, such as changing cropping pattern and land use. The objective of this study was to analyse virtual water flow by using Pvw, Cvw and virtual water content (VWC). VWC of a product is the amount of fresh water required to produce the product, expressed as m3 t−1. The virtual water consumption rate in this study is defined as Cvw/Pvw, which indicates the extent of water shortage and self‐sufficiency of water use in a region. The Cvw and Pvw of 16 regions were computed and the virtual water flow in the Han and Nakdong River basins was analysed. The analysis indicated that a shift of rice cultivation between the upper and the lower regions of these basins can save between 503 and 752 Mm3 of VW in ideal conditions. Virtual water analysis can be useful for finding solutions to improve water productivity at basin level and to reduce pressure on local water resources. Copyright © 2016 John Wiley & Sons, Ltd.

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Estimation of design water requirement using FAO Penman–Monteith and optimal probability distribution function in South Korea

Cited by 42 publications

References 8 publications

Disponibilidad hídrica y predicción del rendimiento de Zea mays L. (Poaceae) “maíz” y Asparagus officinalis L. (Asparagaceae) “espárrago” en el valle Jequetepeque, Perú

Disponibilidad hídrica y predicción del rendimiento de Zea mays L. (Poaceae) “maíz” y Asparagus officinalis L. (Asparagaceae) “espárrago” en el valle Jequetepeque, Perú

Assessing Sensitivity of Paddy Rice to Climate Change in South Korea

Regional Analysis of Virtual Water Flow in View of Crop Consumption

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