ISSN:
1610-7403
Keywords:
F-H horizon
;
growth inhibitor
;
Pinus densiflora
;
seedling mortality
;
water characteristics
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract The process of decrease in seedlings of Japanese red pine (Pinus densiflora Sieb.et Zucc.) and the effect of litter and humus layers on the mortality were studied in their stand and adjacent bare land. After the rainy season, only small number of individuals died in the bare land but more seedlings died in the forest. The number of seedlings killed by drought was greater in the forest than in the bare land. The population of naturally occurring current year seedlings was larger in the forest than in the bare land, but that of 1- to 5-year-old seedlings was smaller. Severe summer drought exceeding the permanent wilting point was observed only in the forest F-H horizon where greater part of seedling roots distributed, this may be one of major mortality factors. Inhibitory substances to seedling growth in fresh fallen pine needles were also suggested.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02348338
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