Effect of Seedbed Condition and Light Exposure on Paper Birch Regeneration
Abstract:The germination, survival, and first-year height growth of paper birch seedlings were studied in patch cuttings under different exposures to light on prepared seedspots representing three types of seedbed. Mineral soil was the best and humus was satisfactory under conditions of high rainfall, but leaf litter was poor under all field conditions tested. Shady locations were most favorable. High soil moisture and modest soil temperatures were associated with these environments. Exposure to sunlight, and types of seedbed were important factors governing first-year height growth. Sunny locations were best; seedling height increased with increased light exposure. Growth was better on organic seedbeds than on mineral soil. Thus the conditions that favored growth were not the best conditions for germination and early survival.
Document Type: Journal Article
Affiliations: Research Foresters at the Northeastern Forest Expt. Sta., Forest Service, U.S. Dept. Agric., Upper Darby, Pa.
Publication date: 1964-12-01
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