Supplementary data 6
From: Variation in irradiance, soil features and regeneration patterns in experimental forest canopy gaps
![Supplementary data 6](http://media.springernature.com/full/springer-static/esm/art%3A10.1007%2Fs13595-014-0424-y/MediaObjects/13595_2014_424_Fig15_ESM.jpg)
(a) Gravel content (GRAVEL %) and (b) surface covered by rocks (ROCK %) in sampling plots in the medium gap (n = 113) and in the small gap (n = 43). (JPEG 450 kb)