Water balance of field plots planted with soybean and pumpkin

S. Abenney-Mickson, A. Yomota, T. Miura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A field water balance was studied within the context of the Japanese plan for upland field agriculture. As part of this study, soil physical conditions were monitored in the field, soil hydraulic characteristics were measured in the laboratory, and the water balance was modeled. The soil hydraulic characteristics were described by the analytical functions of van Genuchten and Mualem, and were used as inputs in the SWAP 1993 water balance model. The model calculation of actual evapotranspiration, ET(a) agreed well in some instances with the field ET(a) calculated using the Energy balance - Bowen ratio method but did not agree at other times. Good results were obtained for the two situations considered as calculated soil water contents agreed fairly well with indirectly measured values (i.e., from tensiometer data) in the field. However, a sensitivity analysis will be necessary if quantitative conclusions are to be made.

Original languageEnglish
Pages (from-to)899-909
Number of pages11
JournalTransactions of the American Society of Agricultural Engineers
Volume40
Issue number4
Publication statusPublished - Jul 1997

Fingerprint

Cucurbita
soil water balance
pumpkins
Soybeans
soybean
water budget
Soil
soybeans
Soils
Water
water balance
hydraulics
tensiometer
Bowen ratio
fluid mechanics
soil
Hydraulics
tensiometers
Evapotranspiration
energy balance

Keywords

  • Hydraulic characteristics
  • Hysteresis
  • SWAP 1993
  • Water balance

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Water balance of field plots planted with soybean and pumpkin. / Abenney-Mickson, S.; Yomota, A.; Miura, T.

In: Transactions of the American Society of Agricultural Engineers, Vol. 40, No. 4, 07.1997, p. 899-909.

Research output: Contribution to journalArticle

Abenney-Mickson, S. ; Yomota, A. ; Miura, T. / Water balance of field plots planted with soybean and pumpkin. In: Transactions of the American Society of Agricultural Engineers. 1997 ; Vol. 40, No. 4. pp. 899-909.
@article{000d93e49be844488ff51ca16c5d9a2d,
title = "Water balance of field plots planted with soybean and pumpkin",
abstract = "A field water balance was studied within the context of the Japanese plan for upland field agriculture. As part of this study, soil physical conditions were monitored in the field, soil hydraulic characteristics were measured in the laboratory, and the water balance was modeled. The soil hydraulic characteristics were described by the analytical functions of van Genuchten and Mualem, and were used as inputs in the SWAP 1993 water balance model. The model calculation of actual evapotranspiration, ET(a) agreed well in some instances with the field ET(a) calculated using the Energy balance - Bowen ratio method but did not agree at other times. Good results were obtained for the two situations considered as calculated soil water contents agreed fairly well with indirectly measured values (i.e., from tensiometer data) in the field. However, a sensitivity analysis will be necessary if quantitative conclusions are to be made.",
keywords = "Hydraulic characteristics, Hysteresis, SWAP 1993, Water balance",
author = "S. Abenney-Mickson and A. Yomota and T. Miura",
year = "1997",
month = "7",
language = "English",
volume = "40",
pages = "899--909",
journal = "Transactions of the ASABE",
issn = "2151-0032",
publisher = "American Society of Agricultural and Biological Engineers",
number = "4",

}

TY - JOUR

T1 - Water balance of field plots planted with soybean and pumpkin

AU - Abenney-Mickson, S.

AU - Yomota, A.

AU - Miura, T.

PY - 1997/7

Y1 - 1997/7

N2 - A field water balance was studied within the context of the Japanese plan for upland field agriculture. As part of this study, soil physical conditions were monitored in the field, soil hydraulic characteristics were measured in the laboratory, and the water balance was modeled. The soil hydraulic characteristics were described by the analytical functions of van Genuchten and Mualem, and were used as inputs in the SWAP 1993 water balance model. The model calculation of actual evapotranspiration, ET(a) agreed well in some instances with the field ET(a) calculated using the Energy balance - Bowen ratio method but did not agree at other times. Good results were obtained for the two situations considered as calculated soil water contents agreed fairly well with indirectly measured values (i.e., from tensiometer data) in the field. However, a sensitivity analysis will be necessary if quantitative conclusions are to be made.

AB - A field water balance was studied within the context of the Japanese plan for upland field agriculture. As part of this study, soil physical conditions were monitored in the field, soil hydraulic characteristics were measured in the laboratory, and the water balance was modeled. The soil hydraulic characteristics were described by the analytical functions of van Genuchten and Mualem, and were used as inputs in the SWAP 1993 water balance model. The model calculation of actual evapotranspiration, ET(a) agreed well in some instances with the field ET(a) calculated using the Energy balance - Bowen ratio method but did not agree at other times. Good results were obtained for the two situations considered as calculated soil water contents agreed fairly well with indirectly measured values (i.e., from tensiometer data) in the field. However, a sensitivity analysis will be necessary if quantitative conclusions are to be made.

KW - Hydraulic characteristics

KW - Hysteresis

KW - SWAP 1993

KW - Water balance

UR - http://www.scopus.com/inward/record.url?scp=0031195121&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031195121&partnerID=8YFLogxK

M3 - Article

VL - 40

SP - 899

EP - 909

JO - Transactions of the ASABE

JF - Transactions of the ASABE

SN - 2151-0032

IS - 4

ER -