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对油茶复合林总辐射能量的垂直分配规律进行了探讨,结果表明:林分不同层次上光辐射具明显规律性,全年抵达林冠层、黄花菜层和黄连层的总辐射分别为:4227.9.653.3、382.0MJ·m-2;一年中的光辐射林冠上层变幅较大,而下面植物层面却相对稳定;林冠的吸收、反射和透射特性与冠层发育状况关系密切;复合植冠层的辐射特征与单一林冠层的不同;总辐射日变化在各层次均表现为单峰曲线。
The vertical distribution of total radiant energy in Camellia oleifera complex forest was discussed. The results showed that the light radiation at different levels of the forest had obvious regularity. The total radiation reaching the forest canopy, day lily layer and coppis layer was 4227. 9.653.3, 382.0MJ · m-2. The upper canopy amplitude of the light irradiance in one year was relatively large, while that of the lower canopy was relatively stable. The absorption, reflection and transmissibility of the canopy were closely related to the canopy development The radiation characteristics of composite canopy differed from that of single canopy layer. The diurnal variation of total radiation showed unimodal curves at all levels.