Evaluation and estimation of canopy heat storage fluxes in an apple orchard

DOI Web Site Web Site 被引用文献2件 参考文献14件
  • ITO Daiyu
    Teaching and Research Center for Bio-coexistence, Faculty of Agriculture and Life Science, Hirosaki University
  • ISHIDA Sachinobu
    Graduate School of Science and Technology, Hirosaki University
  • MATSUSHIMA Dai
    Faculty of Engineering, Chiba Institute of Technology

この論文をさがす

抄録

To precisely evaluate the impact of canopy heat storage on the energy balance of an apple orchard, heat storage flux and its diurnal changes were examined by observation during both growing and sprouting periods. The majority of canopy heat storage was trunk heat storage, followed by sensible and latent heat storages, while the leaf heat storage was negligible. The canopy heat storage flux peaked between 0700 and 0930 and bottomed out at around 1800. The range of diurnal flux was larger in the sprouting period than in the growing period, and likewise on days of higher solar radiation. It reached 66 Wm-2 on fine days in the sprouting period. By taking HS into account, the energy closure ratio for the eddy covariance method increased by 1.03 and 1.16 times in daytime and nighttime, respectively, and this increase was generally thought to improve the energy imbalance. The canopy heat storage flux could be well estimated from the difference of air temperature above the canopy at present and an hour before (RMSE 7 Wm-2).

収録刊行物

  • 農業気象

    農業気象 67 (1), 33-42, 2011

    日本農業気象学会

被引用文献 (2)*注記

もっと見る

参考文献 (14)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ