カラマツ林の熱収支に与える貯熱変化量の影響

DOI 日本農学文献記事索引 Web Site Web Site 被引用文献1件 参考文献10件

書誌事項

タイトル別名
  • Effect of Heat Storage Flux on Energy Balance in a Larch Forest
  • カラマツバヤシ ノ ネツ シュウシ ニ アタエル チョネツ ヘンカリョウ ノ エイキョウ

この論文をさがす

抄録

Sum of sensible and latent heat fluxes measured by the eddy covariance technique is systematically smaller than available energy in many terrestrial ecosystems, which includes forests. This energy imbalance is an essential issue for the flux measurement. In this study, we evaluated heat storage flux and investigated its effect on energy balance in a larch plantation developing on a flat terrain. Above-ground biomass was the largest component producing the heat storage flux of the forest ecosystem; about 70-80% of the heat storage flux was generated in above-ground biomass for summer and fall. Moreover, the heat storage flux of topsoil over heat plates had a considerable bearing on the evaluation of soil heat flux. Adding these heat storage fluxes improved energy balance by 6-10%; it increased the slope of the ordinary least square between eddy energy fluxes and available energy, which was used as an index of energy balance closure, from 0.83 to 0.88 in summer and from 0.93 to 1.03 in fall. This suggests that we have to measure and consider heat storage flux when we investigate the energy balance of forest ecosystems.

収録刊行物

  • 農業気象

    農業気象 59 (3), 245-250, 2003

    日本農業気象学会

被引用文献 (1)*注記

もっと見る

参考文献 (10)*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