摘要
讨论了光合有效辐射（ＰＡＲ）的两种计量系统，提出了利用太阳总辐射照度估算光合有效量子通量密度的气候学公式。根据国外对昼光的观测资料，得到了ＰＡＲ能量的量子转换系数，即太阳总辐射中，ＰＡＲ每１Ｊ的能量含有４．５５μｍｏｌ的量子。在气候学计算中，可利用这个值进行ＰＡＲ的能量和量子的换算。
Two kinds of metrical system of photosynthetically active radiation(PAR)were described.An equation of climatological estimating quantum flux densities was provided using by the irradiance of global radiation. Based on the measured data of spectra and the correlated colour temperature in abroad, a coefficient converting PAR energy into quantum was presented,i.e.1 J energy of global radiation in photosynthetically active spectrum is equivalent to 4.55 μmol quantum.In climatological estimation a conversion between the two kinds of metrical system, quantum and energy of PAR can be carried out for climatological estimation.
出处
《气象学报》
CSCD
北大核心
1996年第4期447-455,共9页
Acta Meteorologica Sinica
基金
中国科学院院长基金
国家自然科学基金
关键词
光合有效辐射
量子通量密度
气候学
Photosynthetically active radiation,Quantum flux densities, Climatological estimation
