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The dynamic schemes of light extinction coefficient improved simulation accuracy of canopy transpiration at hourly scale in apple and orange orchards in China

Author

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  • Wang, Shujian
  • Chen, Dianyu
  • Hu, Xiaotao
  • Zhuo, La
  • Zhang, Dongyan
  • Li, Jing
  • Zhang, Xinyang

Abstract

Currently, most ET related models usually set the light extinction coefficient (C) as a constant, even though it actually changes with season even within a day. Previous studies proved that daily transpiration modelling was significantly improved by using varied C.

Suggested Citation

  • Wang, Shujian & Chen, Dianyu & Hu, Xiaotao & Zhuo, La & Zhang, Dongyan & Li, Jing & Zhang, Xinyang, 2026. "The dynamic schemes of light extinction coefficient improved simulation accuracy of canopy transpiration at hourly scale in apple and orange orchards in China," Agricultural Systems, Elsevier, vol. 231(C).
    • Handle: RePEc:eee:agisys:v:231:y:2026:i:c:s0308521x25002616
    DOI: 10.1016/j.agsy.2025.104521
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    References listed on IDEAS

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    1. Hou, Panpan & Chen, Dianyu & Wei, Xuehui & Hu, Xiaotao & Duan, Xingwu & Zhang, Jingying & Qiu, Lucheng & Zhang, Linlin, 2023. "Transpiration characteristics and environmental controls of orange orchards in the dry-hot valley region of southwest China," Agricultural Water Management, Elsevier, vol. 288(C).
    2. Yongjae Lee & Seung-un Ha & Xin Wang & Seungyong Hahm & Kwangya Lee & Jongseok Park, 2025. "An Automatic Irrigation System Based on Hourly Cumulative Evapotranspiration for Reducing Agricultural Water Usage," Agriculture, MDPI, vol. 15(3), pages 1-18, January.
    3. Chen, Dianyu & Hsu, Kuolin & Duan, Xingwu & Wang, Youke & Wei, Xinguang & Muhammad, Saifullah, 2020. "Bayesian analysis of jujube canopy transpiration models: Does embedding the key environmental factor in Jarvis canopy resistance sub-model always associate with improving transpiration modeling?," Agricultural Water Management, Elsevier, vol. 234(C).
    4. Tahiri, Adel Zeggaf & Anyoji, H. & Yasuda, H., 2006. "Fixed and variable light extinction coefficients for estimating plant transpiration and soil evaporation under irrigated maize," Agricultural Water Management, Elsevier, vol. 84(1-2), pages 186-192, July.
    5. Zhao, Jiarui & Liu, Zhanjun & Zhai, Bingnian & Jin, Hui & Xu, Xinpeng & Zhu, Yuanjun, 2023. "Long-term changes in soil chemical properties with cropland-to-orchard conversion on the Loess Plateau, China: Regulatory factors and relations with apple yield," Agricultural Systems, Elsevier, vol. 204(C).
    6. Supattra Mahakosee & Sanun Jogloy & Nimitr Vorasoot & Piyada Theerakulpisut & Carl Corley Holbrook & Craig K. Kvien & Poramate Banterng, 2022. "Light Interception and Radiation Use Efficiency of Cassava under Irrigated and Rainfed Conditions and Seasonal Variations," Agriculture, MDPI, vol. 12(5), pages 1-14, May.
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