Document Type
Book
Publication Date
1931
Volume
30
Abstract
The relative importance of light and soil moisture in particular is better known than that of other environmental factors. We are coming to believe that the nature and condition of the reproduction and other surface vegetation beneath living canopies are not due to any single factor such as light or soil moisture, but to a complex of factors.
Recommended Citation
Toumey, James W., and Raymond Kienholz. 1931. Trenched Plots Under Forest Canopies. Yale School of Forestry Bulletin 30. 31 pp. + figures.
Comments
TRENCHED and untrenched plots were established in 1922 under . a mature stand of white pine near Keene, N. H. Trenching severed all of the roots of the surrounding white pine, so the trenched plot was free from root competition with them in contrast with the untrenched plot. Light, needle cover, and vegetation were the same on both plots. Trenching was repeated in 1924, 1926, and 1928.