Development of a supersonic pan-evaporimeter for dynamic analysis of evaporative demand in a greenhouse

DOI Web Site Web Site 被引用文献6件 参考文献10件

この論文をさがす

抄録

A supersonic pan-evaporimeter was developed for performing dynamic analysis of evaporative demand in a greenhouse. The pan-evaporimeter comprises two parts: a small-sized cylindrical container (a diameter of 27 cm, a height of 15 cm) filled with water and a supersonic water-level detector. The pan evaporation rate (Epan) can be evaluated for an arbitrary time interval on the basis of the decrease in the water level due to evaporation from the pan-evaporimeter. The performance and validity of the panevaporimeter were examined by analyzing the characteristics of Epan on an hourly basis and its relation with the solar radiation, air temperature and humidity, wind speed, in addition, the transpiration rate of a tomato plant (Tr) in a greenhouse. A positive linear relationship was clearly obtained between the hourly Epan and the environmental elements, and then sensitivity of Epan to the environmental elements was revealed. Furthermore, a good correlation was found between the Epan and the Tr on hourly basis for one day. These results suggest that the developed pan-evaporimeter is a useful tool for analyzing the dynamics of evaporative demand and for estimating the transpiration rate in a greenhouse.

収録刊行物

  • 農業気象

    農業気象 67 (3), 193-198, 2011

    日本農業気象学会

被引用文献 (6)*注記

もっと見る

参考文献 (10)*注記

もっと見る

関連プロジェクト

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