摘要
贵州省年日射总量虽然较低,但林木生长期内日射量较高,林木生长季内光温配合好,使有限的日射量被充分利用。贵州散射量与直射量比值较高,散射辐射中含较多生理辐射量和较长的日射波长,有利于生产树干、叶片(茶)和漆汁的林木快速生长。
There is a relatively higher amount of SR for the duration of tree growth (t≥10℃) although the annual amount of SR is quite low in Guizhou. Satisfactory combination with light and temperature enables trees to make full use of the limited energy of SR during their growth season. The ratio of diffuse to direct SR in Guizhou is rather high. The diffuse SR which contains a more physiological radiant amount and a comparatively long wavelength of visible radiation is advantageous to fast growth of the trees which provide trunks, leaves (tea) and lecquers.
