The frequency of fog occurrence has been as high as 40% of annual time and has reduced ca. 70% of the accumulated photosynthetically active radiation.

• 此区域一年有平均约40%25以上的时间受云雾笼罩，雾发生时林冠上光量平均降低约88%25，以年平均而言，林上光量因云雾之发生衰减约70%25。