The occurrence of ammonia fungi, and changes in soil conditions and wood decay rate in response to application of a large amount of urea in a Quercus serrata dominated mixed forest in Meguro, Tokyo

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This research investigated the occurrence of ammonia fungi, and changes in soil conditions and the decay rates of wood pieces in response to application of urea (800 g/m^2)on a forest floor of Quercus serrata dominated mixed forest. Research was conducted in Tokyo from 7 May 1993 to 6 January 1994. Seven species of ammonia fungi were collected on the urea-treated plot (urea plot): Amblyosporium botritis, Ascobolus denudatus, Peziza moravecii, Pseudombrophila deerata, Coprinus phlyctidosporus, Hebeloma spoliatum, and Lepista sp. pH values of soils in the urea plot increased to about 9 by 12 days after the urea application and then decreased to that of the control level, 5.0-6.2 by 109 days after the application. Water contents of the soils in the urea plot showed somewhat higher values than those of the soils in the control plot throughout sampling period. Decay rates of balsa board pieces embedded in the urea plot were somewhat higher than those of the pieces embedded in the control plot during the occurrence of the early stage of ammonia fungi.
千葉大学の論文
1997-02-28