Ecological Systems and Devices Annotation << Back Solar Irradiance as Abiotic Factor of the Biosphere Stability and the Earth Climate Evolution Bodrova I.V., Murtazov A.K. Herein the Solar radiation is shown the main abiotic factor which provides the stability of biosphere. The Sun luminosity evolution has been analyzed. And the relationship between the Sun luminosity evolution and the biosphere evolution is considered. Keywords: solar radiation, climate, evolution. Pp. 03-09.