2 Examination of forest management corresponding to bamboo reproductive patterns in the plantations of Sugi and Hinoki invaded by bamboo. Itsuro KATANODADivision of Forestry management, Kagoshima Prefectural Forestry Experiment Station, Kagoshima 899-5302, JapanBulletin of the Kagoshima Prefectural Forestry Experiment Station 10 : 19-32 2007 AbstractBamboo (Phyllostachys pubescens) reproductive patterns after clear cutting or partial cutting were investigated, and effective forest management practices corresponding to bamboo reproductive patterns in Sugi (Cryptomeria japonica) or Hinoki (Chamaecyparis obtuse) plantations invaded by bamboo were considered. In case of the clear cutting stand, dwarfed culms and bamboo grass emerged after cutting, and bamboo had been expelled by continuous clear cutting for two years. In case of the partial cutting stands around the bamboo invading front line, dwarfed culms and bamboo grass emerged as well, and bamboo regeneration was expected to suppress as well as the clear cutting stand. On the other hand, in the plantations after the invading front has passed, normal culms emerged after partial cutting, and it was not expected that the partial cutting had damaged bamboo regeneration. However, it was thought that bamboo reproduction would be prevented if active rhizome had been killed by herbicide application for regenerated culms. Reforestation or alternation of species should be considered where the plantations have high mortality of planted trees or high density of culms, because pioneer tree species would grow rapidly and give bad influence for planted trees after cutting. As the conclusion of the investigation, forest management flow in the plantations invaded by bamboo was suggested. Keywords: Bamboo(Phyllostachys pubescens)clear cuttingforest managementherbicideinvading front line Phyllostachys pubescens 1997 1998 2000 302.5 2003 241.7 2003 20032003 2005 200520056-19-
2005 300/1,00025 2006b 2005 2006a 19992003 39 20-1 15 15m3P-13 1 P-4P-3225 20021220031 DBH1cm 76 20034 2 2003520058 1985 4200610 DBH1cm Phyllostachys aurea 2-20-
40 27101550 49620043 77 7 20057 15ml10 20067 15ml 7.5ml20069 155 179162 DBH1cm 30 2,641 1,0781,563 10103P-13 3P-46P-6 616.7 20053 6P-110ml P-1P-1,2 P-2,3 P-13 20056P-4 15ml7P-4 200510 20069 P-16 P-71010mDBH1cm 2.5m P-11515m P-3,62.5m -1P-2 5,600/haP-1,31/32,000/ha P-1,3 24P-2 18 P-324 P-13P-113 P-267P-34P-13 64117 P-4-22003 P-1,21730P-3 2.814-21-
-2 1963 2003620-2620 2004 P-3415 12005 P-1,2 P-1,22P-3 1 20033cm 12 79 1983 1960 22006102 P-1,3,4 P-2 24.1cm 6.6m4.2cm7.2m2 P-1P-2 24m2 2005 P-2P-2-1 P-2-22-
P-2-3 P-135cm10cm 1cm P-1 P-4P-2P-3 4-4 1cm 5,599/ha67 P-215,467/ha425 P-13 02.6 57.989.1% P-1,3 P-2 P-2 P-1,3-23-
4-5 2 SHANNON-WIENERH 1977 P-4 P-13 P-1,3 P-2-3 12.1cm85 31.8-4 2004 2310.5cm t1 2004723 200527 10.4cm t1 9 2-24-
20057-420052006 -6 2m 2005729 1013 2 200611 20042005 2005 2005 2006 2005 3-7 581/ha 1,286/ha1,486/ha 1,714/ha 662514 1cm 25615 645/ha10 123/ha 26%35 6-5 184310.612.1cm 48P-33 42.9-25-
-6 2005 3.65.5cm -8 28cm 6.4cm 26cm4.4cm 2 614cm 1963-6 2005629P-1 1013 60-26-
1/5P-22005629 20051013 30 1P-32005629 P-2 P-1-7 P-42005629 1013 P-5,62005629 78P-5 1P-6 P-5P-68.3cm 9.8cm214 2003 P-6 P-4P-5 2005 P-4 P-5 P-5 2006923-921 -27-
10m126cm 44 610m 15m 2005 10m 10m 2006928-10P-7-28- 1cm5cm1,200/ha 8.3 P-16 57.1100P-7 25 P-16 P-342.9 0 2004
-29-
P-16 3,033/ha25 2006b 25 3,000/ha 3-11 2 10m 2004-30-
1015 196310 8m 20023 15 2540m P-2 P-1625 3,000/ha 25% 3,000/ha 6 2 1 10m -31-
2003 40911-16. 2005 17410-19. 1983Bamboo Journal 136-43. 1977 76-111pp. 2005 41 11-18. 2003 5682-87. 2004 5799-103. 2005 5863-66. 2006a 5982-84. 2006b 323-24. 2000Hikobia 13241-252. 200517-21. 2003 16320-24. 2003 219pp. 2005 1-97. 1985 190pp. 1997 4731-41. 2005 2335-40. 1998 51127-128. 1960 29129-139. 1963314pp. 2002 3725-29. -32-