Presence of an adequate water film is related positively with rainfall and negatively with insolation.
These results support the hypothesis that under well-watered conditions, light limits leaf production, and peaks in insolation result in greater leaf production.
This reversal stems from the poles receiving more insolation on average than the tropics at an obliquity above 54x.
This means that the insolation is absorbed at the immediate surface.
As the insolation pattern changes secularly, the surface temperatures and the near-surface soil water content ought to change as well.
This correlation could be due to small-scale heterogeneity of insolation, temperature and humidity in the crowns of plants.
A bamboo shelter was constructed immediately after sowing to prevent direct insolation.
The former are exposed to fluctuations in insolation because of rapidly changing cloud cover and sparse canopy.
