Publication Abstracts

Winter et al. 2017

Winter, J.M., C.A. Young, V.K. Mehta, A.C. Ruane, M. Azarderaksh, A. Davitt, J. McDonald, V.R. Haden, and C. Rosenzweig, 2017: Integrating water supply constraints into irrigated agricultural simulations of California. Environ. Model. Softw., 96, 335-346, doi:10.1016/j.envsoft.2017.06.048.

Simulations of irrigated croplands generally lack key interactions between water demand from plants and water supply from irrigation systems. We coupled the Decision Support System for Agrotechnology Transfer Cropping Systems Model (DSSAT) and Water Evaluation and Planning System (WEAP) to link regional water supplies and management with field-level water demand and crop growth. WEAP-DSSAT was deployed and evaluated over Yolo County in California for corn, rice, and wheat. WEAP-DSSAT is able to reproduce the results of DSSAT under well-watered conditions and reasonably simulate observed mean yields, but has difficulty capturing yield interannual variability. Constraining irrigation supply to surface water alone reduces yields for all three crops during the 1987-1992 drought. Corn yields are reduced proportionally with water allocation, rice yield reductions are more binary based on sufficient water for flooding, and wheat yields are least sensitive to irrigation constraints as winter wheat is grown during the wet season.

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BibTeX Citation

@article{wi03400r,
  author={Winter, J. M. and Young, C. A. and Mehta, V. K. and Ruane, A. C. and Azarderaksh, M. and Davitt, A. and McDonald, J. and Haden, V. R. and Rosenzweig, C.},
  title={Integrating water supply constraints into irrigated agricultural simulations of California},
  year={2017},
  journal={Environ. Model. Softw.},
  volume={96},
  pages={335--346},
  doi={10.1016/j.envsoft.2017.06.048},
}

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RIS Citation

TY  - JOUR
ID  - wi03400r
AU  - Winter, J. M.
AU  - Young, C. A.
AU  - Mehta, V. K.
AU  - Ruane, A. C.
AU  - Azarderaksh, M.
AU  - Davitt, A.
AU  - McDonald, J.
AU  - Haden, V. R.
AU  - Rosenzweig, C.
PY  - 2017
TI  - Integrating water supply constraints into irrigated agricultural simulations of California
JA  - Environ. Model. Softw.
VL  - 96
SP  - 335
EP  - 346
DO  - 10.1016/j.envsoft.2017.06.048
ER  -

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