Modeling biomass, nitrogen and water dynamics in rice-wheat rotations

Q. Jing, H. van Keulen, H. Hengsdijk

Research output: Contribution to journalArticleAcademicpeer-review

13 Citations (Scopus)

Abstract

Rice–wheat cropping systems occupy between 24 and 26 Mha in Asia. A main feature of RW rotations is the alternation of aerobic and anaerobic soil conditions. This alternation of flooded and non-flooded soil conditions is conducive to N emissions, especially with the current high N rates in RW systems. To design alternative management systems, better understanding of the processes underlying emissions is required. For that purpose, the RIce WhEat Rotation model (RIWER) was developed, on the basis of existing crop, water and soil organic matter models, describing the relevant soil processes under both anaerobic and aerobic conditions. RIWER is evaluated using data from RW experiments in China. Assessment of model performance, on the basis of graphical comparison and goodness-of-fit parameters, showed that RIWER performs well in simulating total aboveground biomass, N uptake of cops and soil inorganic N content. The RIWER modeling framework needs further testing, but offers a promising operational tool to support the design of sustainable RW systems, combining environmentally-friendly production methods and high yields.
LanguageEnglish
Pages433-443
JournalAgricultural Systems
Volume103
Issue number7
DOIs
Publication statusPublished - 2010

Fingerprint

rice
wheat
biomass
nitrogen
water
soil quality
design for environment
aerobic conditions
anaerobic conditions
aboveground biomass
management systems
cropping systems
soil
soil organic matter
China
crops
testing
methodology

Keywords

  • soil organic-matter
  • irrigated rice
  • cropping systems
  • exploring options
  • northern china
  • lowland rice
  • carbon
  • yield
  • mineralization
  • management

Cite this

Jing, Q. ; van Keulen, H. ; Hengsdijk, H. / Modeling biomass, nitrogen and water dynamics in rice-wheat rotations. In: Agricultural Systems. 2010 ; Vol. 103, No. 7. pp. 433-443.
@article{b70697be805d4ef1b076bb35bc56c4a3,
title = "Modeling biomass, nitrogen and water dynamics in rice-wheat rotations",
abstract = "Rice–wheat cropping systems occupy between 24 and 26 Mha in Asia. A main feature of RW rotations is the alternation of aerobic and anaerobic soil conditions. This alternation of flooded and non-flooded soil conditions is conducive to N emissions, especially with the current high N rates in RW systems. To design alternative management systems, better understanding of the processes underlying emissions is required. For that purpose, the RIce WhEat Rotation model (RIWER) was developed, on the basis of existing crop, water and soil organic matter models, describing the relevant soil processes under both anaerobic and aerobic conditions. RIWER is evaluated using data from RW experiments in China. Assessment of model performance, on the basis of graphical comparison and goodness-of-fit parameters, showed that RIWER performs well in simulating total aboveground biomass, N uptake of cops and soil inorganic N content. The RIWER modeling framework needs further testing, but offers a promising operational tool to support the design of sustainable RW systems, combining environmentally-friendly production methods and high yields.",
keywords = "soil organic-matter, irrigated rice, cropping systems, exploring options, northern china, lowland rice, carbon, yield, mineralization, management",
author = "Q. Jing and {van Keulen}, H. and H. Hengsdijk",
year = "2010",
doi = "10.1016/j.agsy.2010.04.001",
language = "English",
volume = "103",
pages = "433--443",
journal = "Agricultural Systems",
issn = "0308-521X",
publisher = "Elsevier",
number = "7",

}

Modeling biomass, nitrogen and water dynamics in rice-wheat rotations. / Jing, Q.; van Keulen, H.; Hengsdijk, H.

In: Agricultural Systems, Vol. 103, No. 7, 2010, p. 433-443.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Modeling biomass, nitrogen and water dynamics in rice-wheat rotations

AU - Jing, Q.

AU - van Keulen, H.

AU - Hengsdijk, H.

PY - 2010

Y1 - 2010

N2 - Rice–wheat cropping systems occupy between 24 and 26 Mha in Asia. A main feature of RW rotations is the alternation of aerobic and anaerobic soil conditions. This alternation of flooded and non-flooded soil conditions is conducive to N emissions, especially with the current high N rates in RW systems. To design alternative management systems, better understanding of the processes underlying emissions is required. For that purpose, the RIce WhEat Rotation model (RIWER) was developed, on the basis of existing crop, water and soil organic matter models, describing the relevant soil processes under both anaerobic and aerobic conditions. RIWER is evaluated using data from RW experiments in China. Assessment of model performance, on the basis of graphical comparison and goodness-of-fit parameters, showed that RIWER performs well in simulating total aboveground biomass, N uptake of cops and soil inorganic N content. The RIWER modeling framework needs further testing, but offers a promising operational tool to support the design of sustainable RW systems, combining environmentally-friendly production methods and high yields.

AB - Rice–wheat cropping systems occupy between 24 and 26 Mha in Asia. A main feature of RW rotations is the alternation of aerobic and anaerobic soil conditions. This alternation of flooded and non-flooded soil conditions is conducive to N emissions, especially with the current high N rates in RW systems. To design alternative management systems, better understanding of the processes underlying emissions is required. For that purpose, the RIce WhEat Rotation model (RIWER) was developed, on the basis of existing crop, water and soil organic matter models, describing the relevant soil processes under both anaerobic and aerobic conditions. RIWER is evaluated using data from RW experiments in China. Assessment of model performance, on the basis of graphical comparison and goodness-of-fit parameters, showed that RIWER performs well in simulating total aboveground biomass, N uptake of cops and soil inorganic N content. The RIWER modeling framework needs further testing, but offers a promising operational tool to support the design of sustainable RW systems, combining environmentally-friendly production methods and high yields.

KW - soil organic-matter

KW - irrigated rice

KW - cropping systems

KW - exploring options

KW - northern china

KW - lowland rice

KW - carbon

KW - yield

KW - mineralization

KW - management

U2 - 10.1016/j.agsy.2010.04.001

DO - 10.1016/j.agsy.2010.04.001

M3 - Article

VL - 103

SP - 433

EP - 443

JO - Agricultural Systems

T2 - Agricultural Systems

JF - Agricultural Systems

SN - 0308-521X

IS - 7

ER -