A greenhouse energy-crop growth modeling framework to estimate energy demand and crop yield production

  • سال انتشار: 1396
  • محل انتشار: هشتمین کنفرانس بین المللی کشاورزی پایدار در محیط زیست، غذا، انرژی و صنعت
  • کد COI اختصاصی: ICSAF08_045
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 742
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نویسندگان

Ramin Roshandel

Department of Energy Engineering, Sharif University of Technology, Tehran, Iran

Farzin Golzar

Institute of Environmental Engineering, Chair of Ecological System Design, ETH Zurich, Zurich, Switzerland

Niko Heeren

Institute of Environmental Engineering, Chair of Ecological System Design, ETH Zurich, Zurich, Switzerland

Stefanie Hellweg

Institute of Environmental Engineering, Chair of Ecological System Design, ETH Zurich, Zurich, Switzerland

چکیده

An integrated modeling framework is proposed to estimate the energy demand and crop yield production of greenhouses. The physical model of greenhouse energy demand is based on the dynamic energy and mass balance while yield production is based on a physiological crop model. The integrated model framework couples these two models, thus allowing one to investigate and track direct and indirect impacts of greenhouse energy-yield tradeoffs during every stage of crop growth over different seasons. The integrated model is validated with energy demand and crop yield datasets are available in literature. There was good agreement between modeled results and measured data. Model accuracy for energy demand was measured by R2 (0.88), RRMSE (0.24) and PBIAS (0.23) and for crop yield by R2 (0.954), RRMSE (0.23) and PBIAS (0.19). The results confirm the ability of the integrated model to be used as a decision support tool for analyzing the tradeoff between energy demand and crop yield, which is particularly relevant for growers.

کلیدواژه ها

Greenhouse, energy demand, crop yield model, integrated framework, dynamic modeling

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