The primary object in view in making and recording the investigations herein set forth was to learn to what extent the survival of white pine seedlings, during the season following germination in the field, is inhibited by insolation and by the drying of the surface soil and what the climatic and cover conditions are that control losses by each. The question requiring solution is: To what extent can losses due to insolation. and surface soil desiccation be controlled by the nature and density of the vegetative cover?
Toumey, James W., and Ernest J. Neethling. 1924. Insolation: A Factor in the Natural Regeneration of Certain Conifers. Yale School of Forestry Bulletin 11. 63 pp. + graphs
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