島根大学農学部
ISSN:0370-940X
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島根大学農学部研究報告 15
1981-12-15 発行
三瓶演習林内の落葉広葉樹林における物質循環に関する研究(IX) : 落枝の大きさと年間量について
Studies on Mineral Cycling in a Deciduous Broad-leaved Forest at Sanbe Forest of Shimane University(IX) : Amounts and Sizes of Big Branch Litter
片桐 成夫
石井 弘
三宅 登
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内容記述（抄録等）
The amounts of big branch litter were measured for three years from 1976 to 1978 in a deciduous broad-leaved forest at Sanbe Forest of Shimane University. This paper also deals with the analysis of the sizes of branch litter.
1. The amounts of big branch litter were much at the month visited by typhoon and at the season of snow fall. The annual amounts of big branch litter showed sharp fluctuation. The amounts of big branch litter were 1.4 times as much as those of branch litter measured by small litter traps.
2. The diameter and length of branch litter varied in the range of 0-20mm, 0-100 cm, respectively. The branch litter under 4 mm of diameter and 30 cm of length accounted for 80% of total branch litter. The specific gravity of branch litter varied by the rotted-degree of branch litter. The bigger the diameter of branch litter was, the more it was decomposed.
1. The amounts of big branch litter were much at the month visited by typhoon and at the season of snow fall. The annual amounts of big branch litter showed sharp fluctuation. The amounts of big branch litter were 1.4 times as much as those of branch litter measured by small litter traps.
2. The diameter and length of branch litter varied in the range of 0-20mm, 0-100 cm, respectively. The branch litter under 4 mm of diameter and 30 cm of length accounted for 80% of total branch litter. The specific gravity of branch litter varied by the rotted-degree of branch litter. The bigger the diameter of branch litter was, the more it was decomposed.
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AN00108015
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