Leaf Temperatures under Natural Environments. (I)

Abstract

The writer attempted to reinvestigate the plant environments from the microclimatological. stand point of view, and first the relation between leaf temperatures under natural condition and the environmental elements was studied. Leaf temperature and the environmental elements such as air temperature near the leaf, surface temperature of soil, solar energy(by GORZINSKY's solarimeter), and wind velocity(by hot-wire anemometer)are recorded simultaneously, employing new type self-recording galvanometer. For example, leaf temperature of some alpine plants and of sand-dune plants, leaf temp. of tea-plant at the time of frost formation, leaf temp. in and out of the shelter at orange orchard, and leaf temp. at the rice-field under the special environment, were reported.